GENERAC Light Tower Owner's Manual

Owner's Manual for GENERAC models including: Light Tower, MLT6SM, MLT6SK

MLT4060KVD-MVD

Operating Manual

Copyright © 2003-2015 • Generac Mobile Products, LLC • http://www.generacmobile.com

Generac Mobile Products LLC - TW14

Owner's Manual - Generac Mobile Products

For more information go to www.P65Warnings.ca.gov/diesel. Page 3. Owner's Manual for MLT6SM/6SK Light Tower iii. Section 1 ...

Product Manual

Electric Generator Manuals - How to Access Old Generator Manuals

File Info : application/pdf, 68 Pages, 14.82MB

generac-40f950b2d4eea4943a1726f380d127b9

Owner's Manual
Light Tower
MLT6SM · MLT6SK
S/N 3002908801 and above
For technical assistance contact: www.generacmobileproducts.com
Technical Support 1-800-926-9768
SAVE THIS MANUAL FOR FUTURE REFERENCE

Use this page to record important information about your light tower.

Unit Model Number
Unit Serial Number
Engine Model Number
Engine Serial Number
Generator Model Number
Generator Serial Number

Record the information found on your unit data label on this page. See Unit Serial Number Locations.
Engine and generator serial numbers are located on separate data plates affixed to the engine and generator respectively. When contacting a Generac Mobile Products Authorized Service Dealer (GMP ASD) about parts and service, always provide the unit model and serial number.
Operation and Maintenance: Proper maintenance and care of the light tower ensures a minimum number of problems and keeps operating expenses at a minimum. It is the operator's responsibility to perform all safety checks, to verify that all maintenance for safe operation is performed promptly, and to have the equipment checked periodically by a GMP ASD. Normal maintenance, service, and replacement of parts are the responsibility of the owner/operator and, as such, are not considered defects in materials or workmanship within the terms of the warranty. Individual operating habits and usage may contribute to the need for additional maintenance or service.

WARNING

Operating, servicing and maintaining this

equipment can expose you to chemicals

including engine exhaust, carbon monoxide,

phthalates, and lead, which are known to the

State of California to cause cancer and birth

defects or other reproductive harm. To

minimize exposure, avoid breathing exhaust,

do not idle the engine except as necessary,

service your equipment in a well-ventilated

area and wear gloves or wash your hands

frequently when servicing your equipment.

For more information go to

www.P65Warnings.ca.gov.

(000393)

WARNING
Breathing diesel engine exhaust exposes you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. · Always start and operate the engine in a
well-ventilated area. · If in an enclosed area, vent the exhaust to
the outside. · Do not modify or tamper with the exhaust
system. · Do not idle the engine except as necessary. For more information go to www.P65Warnings.ca.gov/diesel. (000394)

Owner's Manual for MLT6SM/6SK Light Tower

Table of Contents

Section 1: Introduction and Safety
Introduction ..................................................................1 Read This Manual Thoroughly ....................................1
Safety Rules .................................................................1 How to Obtain Service .................................................1
General Hazards ...........................................................2 Explosion and Fire Hazards ........................................2 Trailer Hazards .............................................................2 Electrical Hazards ........................................................3 Battery Hazards ............................................................3 Fuel Hazards .................................................................4 Engine Safety ...............................................................4 Operating Safety ..........................................................4
Positioning the Unit .....................................................4 Starting the Unit ...........................................................4 Raising and Lowering the Mast ...................................5 Service Safety ..............................................................5 Towing Safety ...............................................................6 Hitch and Coupling ......................................................6 Running Lights ............................................................6 Wheels and Tires ........................................................6 Safe Towing Techniques .............................................6 Reporting Trailer Safety Defects ................................6 Safety and Operating Decals ......................................7
Section 2: General Information
Specifications .............................................................11 Unit Serial Number Locations ...................................12 Trailer Tongue Storage and Tow Positions .............13
Place Trailer Tongue in Tow Position ........................13 Place Trailer Tongue in Storage Position ..................14 Unit Dimensions .........................................................15 Component Locations ...............................................16 Control Panel ..............................................................18 Control Panel Features and Functions ......................18 Power ZoneDLA (If Equipped) ................................19 Controller Features and Functions ............................19 Operator Screens ......................................................20 Dusk to Dawn Screen ................................................21

Section 3: Operation
Light Tower Setup ......................................................25 Raising the Mast--Manual Winch .............................26 Raising the Mast--Electric Winch (If Equipped) .....27 Raising the Mast--Power Zone-DLA (If Equipped) ...............................................................28 Prestart Checklist ......................................................29 Starting the Unit (Key Switch Models) .....................29 Preparing for Start-Up (Power ZoneDLA) ..............30
Select AUTO or MANUAL Mode ...............................30 Manually Starting the Unit .........................................30 Light Operation (Key Switch Models) ......................31 Light Operation (Power ZoneDLA) (If Equipped) ...............................................................31 Engine Derating .........................................................31 Wet Stacking ..............................................................32 Dusk to Dawn Sensor (Power ZoneDLA) (If Equipped) ...............................................................32 Customer Convenience Receptacles .......................32 Shutting Down the Unit .............................................32 Shutting Down the Unit (Power ZoneDLA) (If Equipped) ...............................................................33
Automatic Shutdown .................................................33 Lowering the Mast--Manual Winch ..........................33 Lowering the Mast--Electric Winch (If Equipped) ...............................................................33
Manually Lowering the Mast ......................................34 Lowering the Mast--Power Zone-DLA (If Equipped) ...............................................................34 Positive Air Shutdown (PAS) (If Equipped) .............34
Test the PAS .............................................................35 Reset the PAS ...........................................................35 Lower Radiator Hose Heater (If Equipped) ...............................................................35 Tandem Tow (If Equipped) ........................................35 Telemetry (If Equipped) .............................................35 Spark Arrester (If Equipped) .....................................35 Heated Fuel Filter (If Equipped) ................................36 Towing the Unit ..........................................................36 Lifting the Unit ............................................................36 Tying the Unit Down ..................................................37

Owner's Manual for MLT6SM/6SK Light Tower

iii

Section 4: Maintenance
Emissions Information .............................................. 39
Daily Walk-Around Inspection .................................. 39
General Maintenance ................................................ 39 Preparing for Service ................................................ 39 Cleaning the Unit ...................................................... 39 Inspecting the Unit .................................................... 39
Basic Maintenance Schedule ................................... 40
Resetting the Maintenance Alarms (If Equipped) ............................................................... 42
Manual Winch: Use, Operation, and Maintenance ....................................................... 42
Prior to Use ............................................................... 42 Operation .................................................................. 42 Maintenance ............................................................. 42
Electric Winch (If Equipped): Use, Operation, and Maintenance ....................................................... 42
Winch Mechanical Brake .......................................... 43
Trailer Wheel Bearings .............................................. 43
Jack Maintenance ...................................................... 43

Section 7: Service Log

Section 5: Troubleshooting
General Troubleshooting .......................................... 45 Troubleshooting the Lights ...................................... 46

Section 6: Wiring Diagrams
Mast Junction Box Wiring and Light Connections ..................................................... 47 AC Wiring Diagram .................................................... 48 AC Wiring Diagram--MLT6SK and MLT6SM Power Zone (If Equipped) ......................................... 49 DC Wiring Diagram--MLT6SM ................................. 50 DC Wiring Diagram--MLT6SM Power Zone (If Equipped) ............................................................... 51 DC Wiring Diagram--MLT6SK .................................. 52 DC Wiring Diagram--MLT6SK Power Zone (If Equipped) ............................................................... 53 DC Wiring Option--Heated Fuel Filter MLT6SM .. 54 DC Wiring Option--Heated Fuel Filter MLT6SK .. 55 DC Wiring--Electric Winch Option .......................... 56 Trailer Lights Wiring .................................................. 57 Trailer Lights Wiring--Power Zone (If Equipped) ............................................................... 58

Owner's Manual for MLT6SM/6SK Light Tower

Section 1: Introduction and Safety

Introduction and Safety

Introduction
Thank you for purchasing a Generac Mobile Products, LLC product. This unit has been designed to provide highperformance, efficient operation, and years of use when maintained properly.
The information in this manual is accurate based on products produced at the time of publication. The manufacturer reserves the right to make technical updates, corrections, and product revisions at any time without notice.
Read This Manual Thoroughly
WARNING
Consult Manual. Read and understand manual completely before using product. Failure to completely understand manual and product could result in death or serious injury.(000100a)
If any section of the manual is not understood, contact your nearest Generac Mobile Products Authorized Service Dealer, or contact Generac Mobile Products, LLC at 1-800926-9768, or Generac Mobile Products Technical Service at 1-800-926-9768 or www.generacmobileproducts.com with any questions or concerns.
The owner is responsible for proper maintenance and safe use of the equipment. Comply with regulations the Occupational Safety and Health Administration (OSHA) has established, or with equivalent standards. Also, verify that the unit is applied, used, and maintained in accordance with the manufacturer's instructions and recommendations. Do nothing that might alter safe application/usage and render the unit in noncompliance with the aforementioned codes, standards, laws, and regulations.
Save these instructions for future reference. This manual contains important instructions for the unit that should be followed during setup, operation and maintenance of the unit and battery. ALWAYS supply this manual to any individual that will use this machine.
Safety Rules
The manufacturer cannot anticipate every possible circumstance that might involve a hazard. The alerts in this manual, and on tags and decals affixed to the unit, are not all inclusive. If using a procedure, work method, or operating technique that the manufacturer does not specifically recommend, verify that it is safe for others and does not render the equipment unsafe.
Throughout this publication, and on tags and decals affixed to the unit, DANGER, WARNING, CAUTION, and NOTE blocks are used to alert personnel to special instructions about a particular operation that may be hazardous if

performed incorrectly or carelessly. Observe them carefully. Alert definitions are as follows:
DANGER
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
(000001)
WARNING
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
(000002)
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
(000003)
NOTE: Notes contain additional information important to a procedure and will be found within the regular text of this manual.
These safety alerts cannot eliminate the hazards that they indicate. Common sense and strict compliance with the special instructions while performing the action or service are essential to preventing accidents.
How to Obtain Service
When the unit requires servicing or repairs, contact a Generac Mobile Products Authorized Service Dealer (GMP ASD) for assistance. Service technicians are factory-trained and are capable of handling all service needs. For assistance locating a dealer, visit www.generacmobileproducts.com/partsservice/find-service. When contacting a GMP ASD about parts and service, always supply the complete model number and serial number of the unit as given on its data decal located on the unit. Record the model number and serial numbers in the spaces provided on the inside front cover of this manual.

Owner's Manual for MLT6SM/6SK Light Tower

Introduction and Safety

General Hazards
DANGER
Asphyxiation. Running engines produce carbon monoxide, a colorless, odorless, poisonous gas. Carbon monoxide, if not avoided, will result in death or serious injury.
(000103)
WARNING
Hearing Loss. Hearing protection is recommended when using this machine. Failure to wear hearing protection could result in permanant hearing loss. (000107)

Explosion and Fire Hazards

DANGER

Explosion and Fire. Fuel and vapors are

extremely flammable and explosive. Add fuel

in a well ventilated area. Keep fire and spark

away. Failure to do so will result in death

or serious injury.

(000105)

WARNING
Risk of Fire. Unit must be positioned in a manner that prevents combustible material accumulation underneath. Failure to do so could result in death or serious injury. (000147)

WARNING
Moving Parts. Keep clothing, hair, and appendages away from moving parts. Failure to do so could result in death or serious injury.
(000111)

WARNING
Risk of Fire. Hot surfaces could ignite combustibles, resulting in fire. Fire could result in death or serious injury.
(000110)

WARNING

Hot Surfaces. When operating machine, do not

touch hot surfaces. Keep machine away from

combustibles during use. Hot surfaces could

result in severe burns or fire.

(000108)

WARNING

Risk of injury. Do not operate or service this machine

if not fully alert. Fatigue can impair the ability to service

this equipment and could result in death or serious

injury.

(000215)

WARNING
Risk of burns. Allow engine to cool before draining oil or coolant. Failure to do so could result in death or serious injury.
(000139)

Trailer Hazards

WARNING

Personal injury. Trailer must be securely coupled to

the hitch with the chains correctly attached. Uncoupled

or unchained towing could result in death or serious

injury.

(000233a)

WARNING

Personal injury. Do not operate unit during transport.

Doing so could result in death, serious injury, or

property damage.

(000231a)

WARNING
Crushing hazard. Verify unit is properly secured and on level ground. An unsecured unit can suddenly roll or move, causing death or serious injury.
(000234a)

WARNING

Property or Equipment Damage. Tighten wheel lug

nuts after first 50 miles to factory specifications.

Failure to do so could result in death, serious injury,

property or equipment damage.

(000235)

Owner's Manual for MLT6SM/6SK Light Tower

Introduction and Safety

Electrical Hazards

DANGER

Electrocution. In the event of electrical accident,

immediately shut power OFF. Use non-conductive

implements to free victim from live conductor. Apply

first aid and get medical help. Failure to do so will

result in death or serious injury .

(000145)

Battery Hazards
DANGER
Electrocution. Do not wear jewelry while working on this equipment. Doing so will result in death or serious injury.
(000188)

DANGER
Electrocution. Water contact with a power source, if not avoided, will result in death or serious injury.
(000104)
DANGER
Electrocution. Contact with bare wires, terminals, and connections while generator is running will result in death or serious injury.
(000144)

WARNING

Explosion. Batteries emit explosive gases while charging.

Keep fire and spark away. Wear protective gear when

working with batteries. Failure to do so could result in

death or serious injury.

(000137a)

WARNING
Explosion. Do not dispose of batteries in a fire. Batteries are explosive. Electrolyte solution can cause burns and blindness. If electrolyte contacts skin or eyes, flush with water and seek immediate medical attention.
(000162)

DANGER

Electrocution. Verify electrical system is

properly grounded before applying power.

Failure to do so will result in death or serious

injury.

(000152)

DANGER
Electrocution. Do not wear jewelry while working on this equipment. Doing so will result in death or serious injury.
(000188)

DANGER
Electrocution. DO NOT use the unit if electrical cord is cut or worn through. Doing so will result in death or serious injury.
(000263a)

WARNING

Risk of burn. Do not open or mutilate batteries.

Batteries contain electrolyte solution which can

cause burns and blindness. If electrolyte contacts

skin or eyes, flush with water and seek immediate

medical attention.

(000163a)

WARNING
Environmental Hazard. Always recycle batteries at an official recycling center in accordance with all local laws and regulations. Failure to do so could result in environmental damage, death or serious injury.
(000228)
Always recycle batteries in accordance with local laws and regulations. Contact your local solid waste collection site or recycling facility to obtain information on local recycling processes. For more information on battery recycling, visit the Battery Council International website at: http:// batterycouncil.org

Owner's Manual for MLT6SM/6SK Light Tower

Introduction and Safety

Fuel Hazards
DANGER
Explosion and fire. Fuel and vapors are extremely flammable and explosive. No leakage of fuel is permitted. Keep fire and spark away. Failure to do so will result in death or serious injury. (000192)
DANGER
Risk of fire. Allow fuel spills to completely dry before starting engine. Failure to do so will result in death or serious injury.
(000174)
· DO NOT fill fuel tank near an open flame, while
smoking, or while engine is running. DO NOT fill tank in an enclosed area with poor ventilation.
· DO NOT operate with the fuel tank cap loose or
missing.
Engine Safety
Internal combustion engines present special hazards during operation and fueling. Failure to follow the safety guidelines described below could result in severe injury or death. Read and follow all safety alerts described in the engine operator's manual. A copy of this manual was supplied with the unit when it was shipped from the factory.
· DO NOT run engine indoors or in an area with poor
ventilation. Make sure engine exhaust cannot seep into closed rooms or ventilation equipment.
· DO NOT clean air filter with gasoline or other types
of low flash point solvents.
· DO NOT operate the unit without a functional
exhaust system.
· Shut the engine down if any of the following
conditions exist during operation: · Noticeable change in engine speed. · Loss of electrical output. · Equipment connected to the unit overheats. · Sparking occurs. · Engine misfires or there is excessive engine/
generator vibration. · Protective covers are loose or missing. · Ambient air temperature is above 120 °F (49 °C).

Operating Safety

Positioning the Unit

DANGER

High Voltage. Verify area above unit is clear

of overhead wires and obstructions. Contact

with high-voltage power lines will result in

death or serious injury.

(000260a)

WARNING
Burn hazard. Never operate lights with a damaged or missing lens cover. Lamps are hot and pressurized while in use. Unprotected lamps can shatter, causing severe injury.
(000277)
· The area immediately surrounding the unit should
be dry, clean, and free of debris.
· Position and operate the unit on a firm, level
surface.
· If the unit is equipped with a frame grounding stud,
follow any local, state, and National Electrical Code (NEC) guidelines when connecting.
Starting the Unit
DANGER
Electrocution. DO NOT use the unit if electrical cord is cut or worn through. Doing so will result in death or serious injury.
(000263a)

WCARUNTIONGN

Equipment damage. Do not attempt to start or operate

a unit in need of repair or scheduled maintenance.

Doing so could result in serious injury, death, or

equipment failure or damage.

(000291)

Owner's Manual for MLT6SM/6SK Light Tower

Introduction and Safety

Raising and Lowering the Mast
WARNING
Electrocution. Do not set up or operate this unit if severe weather is expected. Lightning strikes can kill or cause severe injury even if you are not touching the unit. (000296)

WARNING

> 60 mph Do not set up the unit if high winds

are expected. High winds can cause the

unit to tip or fall, causing severe injury

or machine damage.

(000297)

WARNING

Personal injury or equipment damage. Do not raise

or lower the mast while the unit is operating.

Doing so can break the lenses and cause the

lamps to shatter.

(000279)

WARNING

Personal Injury. Stop immediately if the mast hangs

up or the winch cable develops slack. Excess slack

could cause the mast to collapse, resulting in personal

injury or equipment damage.

(000265)

WARNING
Tipping hazard. Extend the outriggers and level the unit before raising the mast. Keep the outriggers extended while the mast is up. Failure to do so could cause the unit to tip and fall and could result in death or serious injury.
(000266)
· Keep area around the unit clear of people while
raising and lowering the mast.
· ALWAYS lower the mast when not in use.
· The tower extends up to 23 ft (7 m). Verify area
above trailer is open and clear of overhead wires and obstructions.
· If for any reason any part of the mast hangs up or
winch cable develops slack while raising or lowering tower, stop immediately and contact a GMP ASD.
· NEVER remove safety pin or pull mast locking pin
while tower is up.

Service Safety

WARNING

Accidental start-up. Disconnect negative battery

terminal before servicing to prevent accidental engine

rotation. Failure to do so could result in death or

serious injury.

(000148a)

This unit uses high voltage circuits capable of causing serious injury or death. Only a qualified and licensed electrician should troubleshoot or repair problems occurring in this equipment.
· Before servicing the unit, verify the control power
switch and circuit breakers are OFF (O), and the negative (-) terminal on the battery is disconnected. DO NOT perform even routine service (oil/ filter changes, cleaning, etc.) unless all electrical components are shut down.
· ALWAYS use extreme caution when servicing this
unit in damp conditions. Do not service the unit if skin or clothing is wet. Do not allow water to collect around the base of the unit.
· DO NOT wash the unit with high pressure hoses,
power washers, or steam cleaners. Water may collect in the unit, causing damage to electrical parts.
· Replace all missing and hard to read decals.
Decals provide important operating instructions and warn of dangers and hazards.
· Wear heavy leather gloves when handling winch
cables. Never let cables slip through bare hands.
· Only use mild soap and water to clean the lens
covers. Other chemicals may damage the lens covers.

Owner's Manual for MLT6SM/6SK Light Tower

Introduction and Safety

Towing Safety
Towing a trailer requires care. Both the trailer and vehicle must be in good condition and securely fastened to each other to reduce the possibility of an accident. Some states require that large trailers be registered and licensed. Contact your local Department of Transportation office to check on license requirements for your particular unit.
Hitch and Coupling
· Verify the hitch and coupling on the towing vehicle
are rated equal to, or greater than, the trailer's gross vehicle weight rating (GVWR).
· Verify the trailer hitch and the coupling are compat-
ible. Verify the coupling is securely fastened to the vehicle.
· DO NOT tow trailer using defective parts. Inspect
the hitch and coupling for wear or damage.
· Connect safety chains in a crossing pattern under
the tongue.
· Before towing the trailer, verify that the weight of
the trailer is equal across all tires. On trailers with adjustable height hitches, adjust the angle of the trailer tongue to keep the trailer as level as possible.
Running Lights
Verify directional and brake lights on the trailer are connected and working properly.
Wheels and Tires
· Inspect trailer tires for wear and proper inflation. · Verify wheel lug nuts are present and tightened to
the specified torque.
Safe Towing Techniques
· Practice turning, stopping, and backing up in an
area away from heavy traffic prior to transporting the unit.
· Maximum recommended speed for highway towing
is 45 mph (72 km/h). Recommended off-road towing speed is 10 mph (16 km/h) or less, depending on terrain.
· When towing, maintain extra space between vehi-
cles and avoid soft shoulders, curbs, and sudden lane changes.

Reporting Trailer Safety Defects
If you believe your trailer has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration (NHTSA) in addition to notifying Generac Mobile Products, LLC.
If NHTSA receives similar complaints, it may open an investigation; and if it finds that a safety defect exists in a group of vehicles, it may order a recall and remedy campaign. However, NHTSA cannot become involved in an individual problem between you, your dealer, or Generac Mobile Products, LLC.
To contact NHTSA, you may either call the Auto Safety Hotline toll-free at 1-888-327-4236 (TTY:1-800-424-9153), go to http://www.safercar.gov; or write to:
Administrator NHTSA 1200 New Jersey Avenue S.E. Washington, DC 20590
You can also obtain other information about motor vehicle safety from http://www.safercar.gov.

Owner's Manual for MLT6SM/6SK Light Tower

Introduction and Safety

Safety and Operating Decals
See Figure 1-1 through Figure 1-3. This unit features numerous safety and operating decals. These decals provide important operating instructions and warn of dangers and hazards. The following diagrams illustrate decal locations and descriptions.

Replace any missing or hard-to-read decals and use care when washing or cleaning the unit. Decal part numbers can be found in the parts manual at www.generacmobileproducts.com.

Description

1 Setup and Take-Down Instructions (Electric)

2 Setup and Take-Down Instructions (Manual)

3 Danger--Overhead Power Lines

4 Warning--Electrical Storms and High Wind

5 Owner's Manual Location

6 Electric Shock Hazard

7 Warning--Hot Surface

8 Warning--Pressurized Liquid

9 Warning--Entanglement Hazard

10 Warning--Cutting Hazard

11 Disconnect Battery Before Servicing

12 Danger--Carbon Monoxide

13 Electrical Ground Connection

14 Danger--Ultraviolet Radiation / Winch Operation

Description

15 Control Panel Label (not shown)

16 Neutral Bonded to Frame

17 Not A Step

18 Warning--High Temperature: Do Not Remove Guard

19 Mast Junction Box Wiring (inside)

20 Warning--Do Not Retract Outriggers With Tower Up

21 Stowed Position

22 Lifting Point

23 Forklift and Tie-Down Point

24 Engine Operation

25 Ultra Low Sulfur Diesel Fuel Only

26 Danger--Fuel and Fueling Hazards

27 Tie-Down Point

28 Towing Instructions

Owner's Manual for MLT6SM/6SK Light Tower

Introduction and Safety

O I O I
O I O I

SET UP AUFSTELLUNG INSTALACIÓN INSTALLATION
1

0°± 5°

1 Inch (25 mm)

TAKE DOWN

ABBAU

STOP

DESINSTALACIÓN

DÉMONTAGE 15 MIN

I O
A
I O
B

I O I O
6

STOP

SET UP AUFSTELLUNG INSTALACIÓN INSTALLATION

0°± 5°

1 Inch (25 mm)

TAKE DOWN

ABBAU

STOP

DESINSTALACIÓN

DÉMONTAGE 15 MIN

X2 4

Figure 1-1. Decal Locations (1 of 3)

006447

Owner's Manual for MLT6SM/6SK Light Tower

Introduction and Safety

DANGER OVERHEAD POWER LINES

Contact with overhead electrical power lines will cause serious injury or death. Do not position light tower under electrical power lines.
GEFAHR
Der kontakt mit elektrischen Hochspannungsleitungen kann zu schweren oder lebensgefährlichen Verletzungen führen. Den Beleuchtungswagen nie direkt unter Hochspannungsleitungen aufstellen.
PELIGRO
El contacto con las líneas electricas elevadas podría causar lesiones serias o la muerte. No posicione la torre de iluminación debajo de líneas electricas.
DANGER
Le contact avec des câbles électriques suspendus causera des blessures graves ou la mort. Ne pas positionner la tour lumineuse sous des câbles électriques.

WARNING
ELECTRICAL STORMS & HIGH WIND
> 60 mph DO NOT set up unit in winds exceeding 60 mph, or during electrical storms.
Nicht bei Windgeschwindigkeit von mehr als 95 km/h oder bei Gewitter aufstellen.
No instalar cuando el viento exceda los 95 km/h o durante tormentas eléctricas.
Ne pas installer dans des vents excédant 60 mph ou pendant les orages electriques.

13 6

Disconnect battery before servicing. Vor der Instandsetzung die Batterieverbindungen lösen. Desconecte la batería antes de realizar el servicio técnico. Débrancher la batterie avant de faire l'entretien.

DANGER

GEFAHR

PELIGRO

CARBON MONOXIDE

DANGER

WARNING
NOTICE HINWEIS
AVISO AVIS

NEUTRAL BONDED TO FRAME NULLLEITER AM RAHMEN ANGESCHLOSSEN NEUTRO CONECTADO AL BASTIDOR POSITION NEUTRE LORSQUE FIXÉ AU CADRE

Figure 1-2. Decal Locations (2 of 3) Owner's Manual for MLT6SM/6SK Light Tower

WARNING
18
WARNUNG ADVERTENCIA AVERTISSEMENT
006448
9

Introduction and Safety

:$51,1*
'2127 retract outriggers with tower up.
:$5181*
Nicht zurückziehen Ausleger mit Turm auf.
$'9(57(1&,$
No retraiga estabilizadores con la torre de arriba.
$'9(57,66(0(17
Ne pas retirer les stabilisateurs avec la tour vers le haut.

6WRZHG3RVLWLRQ 9HUVWDXSRVLWLRQ 3RVLFLyQGHHVWLEDFLyQ 3RVLWLRQGHUDQJHPHQW

6 19

2 ,
2 ,
2 ,
2 ,

(1*,1(23(5$7,21 MOTORBETRIEB OPERACIÓN DEL MOTOR FONCTIONNEMENT DU MOTEUR
0$18$//2&$7(' ,16,'(+22'

6+87'2:1

ABSCHALTUNG

APAGADO

ARRÊT

6723

ACTIVATE

GLOW PLUGS

<15 SEC.

CRANK ENGINE TO START

RELEASE KEY

0$,1 %5($.(5
9
,
2
2

6723

STOP

0$,1 %5($.(5
9
,
2
2

, 2
, 2
3

23 24

8/75$/2:

68/)85 )8(/21/<

6PJNJ

'$1*(5

*()$+5

3(/,*52 '$1*(5

',(6(/

72:,1*,16758&7,216
5HDGRSHUDWRU
VPDQXDO 8VHKLWFKUDWHGIRUWUDLOHU
VJURVVYHKLFOHZHLJKW UDWLQJ 6HFXUHO\DWWDFKWUDLOHUWRWRZYHKLFOH $WWDFKVDIHW\FKDLQVXVLQJDFURVVSDWWHUQ $WWDFKEUHDNGRZQFKDLQWRYHKLFOH &KHFNWUDLOHUOLJKWV

$%6&+/(33$1:(,681*(1
%HQXW]HUKDQGEXFKOHVHQ $QKlQJHYRUULFKWXQJYHUZHQGHQGLHGHU Ä*HVDPWEHWULHEVJHZLFKWVNODVVH´GHV )DKU]HXJVHQWVSULFKW $QKlQJHUVLFKHUDP $EVFKOHSSIDKU]HXJEHIHVWLJHQ 6LFKHUKHLWVNHWWHQEHU.UHX]DQEULQJHQ $EUHLNHWWHDP)DKU]HXJDQEULQJHQ $QKlQJHUOHXFKWHQSUIHQ

,16758&&,21(63$5$5(02/48(
/HDHOPDQXDOGHORSHUDGRU 8VHXQHQJDQFKHDGHFXDGRSDUDOD³FDSDFLGDG GHSHVREUXWRGHOYHKtFXOR´GHOUHPROTXH (QJDQFKHILUPHPHQWHHOUHPROTXHDOYHKtFXOR GHUHPROTXH (QJDQFKHODVFDGHQDVGHVHJXULGDGHQ IRUPDFUX]DGD (QJDQFKHDOYHKtFXORODFDGHQDGHHPHUJHQFLD SDUDDYHUtDV 5HYLVHODVOXFHVGHOUHPROTXH

,16758&7,216'(5(02548$*(
/LUHOHPDQXHOGHO¶XWLOLVDWHXU 8WLOLVHUXQDWWHODJHFRQYHQDQWDXSRLGVQRPLQDO EUXWGHODUHPRUTXH $UULPHUVROLGHPHQWODUHPRUTXHDXYpKLFXOHWUDFWHXU 3RVHUOHVFKDvQHVGHVpFXULWpHQOHVFURLVDQW )L[HUODFKDvQHGHUHPRUTXDJHDXYpKLFXOH 9pULILHUOHVIHX[GHODUHPRUTXH

Figure 1-3. Decal Locations (3 of 3)

006449a

Owner's Manual for MLT6SM/6SK Light Tower

Section 2: General Information

General Information

Specifications

DESCRIPTION

UNITS

Engine

Manufacturer

Model

EPA Tier

Fuel Consumption--100% Prime

gph (Lph)

Battery Type--Group Number

Battery Voltage

quantity per unit

Battery Rating

cold-cranking amps (CCA)

Generator

Make

Model

Output - Standby

kW (kVA)

Output Voltage

volts

Output Amperes 120V (240V)

amperes

Frequency

Hertz

Weights

Dry Weight

lbs (kg)

Operating Weight

lbs (kg)

Capacities

Fuel Tank Volume

gal (L)

Usable Fuel Volume

gal (L)

Coolant (including engine)

qt (L)

Oil (including filter)

qt (L)

Maximum Run Time at Full Load

hours

AC Distribution

Circuit Breaker Size

amperes

Trailer

Hitch--Standard

Maximum Tire Pressure

psi (kPA)

Specifications are subject to change without notice.

MLT6SM
Mitsubishi® L3E-W461ML
Tier 4 Final 0.59 (2.24)
24 12V (1)
440

MLT6SK
Kubota® D1005-E3BG1-MGM-1
Tier 4 Final 0.58 (2.18)
24 12V (1)
440

Marathon® 201CSA5423
6.0 (6.0) 120V/240V, single phase
15 (25) 60

1,290 (585) 1,560 (708)

1,330 (603) 1,600 (726)

40.8 (154.5) 39.9 (151) 4.5 (4.3) 5.0 (4.7)
90

40.8 (154.5) 39.9 (151) 4.8 (4.5) 5.4 (5.1)
84

2 in (51 cm) ball 50 (345)

Owner's Manual for MLT6SM/6SK Light Tower

General Information
Unit Serial Number Locations
Refer to the illustration to locate the unit ID tag and Vehicle Identification Number (VIN) tag on the unit. Important information, such as the unit serial number, model number, VIN, and tire loading information are found on these tags. Record the information from these tags so it is available if the tags are lost or damaged. When ordering parts or requesting assistance, you may be asked to provide this information.

VIN Tag

MANUFACTURED BY/FABRIQUE PAR: Generac Mobile Products LLC

GVWR/PNBV: 000KG (0000LBS)

GAWR / PNBE

TIRE / PNEU

RIM / JANTE

DATE: 00/0000
COLD INF. PRESS./ PRESS. DE GONF A FROID - KPA(PSI/LPC) SGL / DUAL

EACH AXLE

THIS VEHICLE CONFORMS TO ALL APPLICABLE STANDARDS PRESCRIBED UNDER THE U.S. FEDERAL MOTOR VEHICLE SAFETY STANDARDS(FMVSS) AND CANADIAN MOTOR VEHICLE SAFETY REGULATIONS IN EFFECT ON THE DATE OF MANUFACTURE.

CE VEHICULE EST CONFORME A TOUTES LES NORMES QUI LUI SONT APPLICABLES EN VERTU DU REGLEMENT SUR LA SECURITE DES VEHICULES AUTOMOBILES

DU CANADA EN VIGUEUR A LA DATE SA FABRICATION.

MODEL: XXX000

V.I.N./N.I.V.: 00000000000000000

TYPE: TRAILER

TIRE AND LOADING INFORMATION RENSEIGNEMENTS SUR LES PNEUS ET LE CHARGEMENT
The weight of cargo should never exceed 0000KG (0000LBS) Le poids du chargement ne doit jamais depasser 0000KG (0000LBS)
SEE OWNER'S MANUAL FOR ADDITIONAL INFORMATION
VOIR LE MANUEL DE L'USAGER
POUR PLUS DE RENSEIGNEMENTS

Unit ID Tag
(Located on top of control box)

Manufactured by Generac Mobile Products LLC

(920) 361-4442

(800) 926-9768

Country of Origin

Model

Serial Number

Manufacturing Code

Weight (lbs/kg)

RPM/Frequency

1 ph. 1.0PF KW KVA V A

3 ph. .8PF

3 ph. 1.0PF

Rating

Ins. Class
FOR ELECTRICAL EQUIPMENT ONLY. POUR MATERIAL
ELECTRIQUE SEULEMENT. 209649
Form: SFC626B

Figure 2-1. Serial Number Locations

006450

Owner's Manual for MLT6SM/6SK Light Tower

General Information

Trailer Tongue Storage and Tow Positions
The trailer tongue is designed to fold upright for shipping and storage. IMPORTANT NOTE: Do not attempt to tow the unit with trailer tongue in the storage position.
Place Trailer Tongue in Tow Position
1. Verify unit is on a level surface and wheels are blocked.
NOTE: See Figure 2-2. Unit ships from factory with jack in the storage location (A).

CAUTION
Pinching and crushing hazard. To avoid possible injury, keep fingers away from pivot point when folding or unfolding trailer tongue.
(000313)
6. See Figure 2-4. Using both hands, slowly lower trailer tongue into tow position.
NOTE: Varying levels of effort may be required depending on terrain.

003591

Figure 2-2. Jack and Pin Locations

2. Remove clevis securing jack parallel to ground.
3. Remove jack from tongue weldment. Hold jack vertically and extend until weldment on jack is aligned with tongue weldment.
4. See Figure 2-3. Install jack and secure with clevis (D).

003519
Figure 2-4. Lower Trailer Tongue into Tow Position
7. See Figure 2-5. Install pins as shown to secure trailer tongue in tow position.

D
Figure 2-3. Jack Installed

003517

5. See Figure 2-2. Remove pins (B) and (C).

Figure 2-5. Install and Secure Pins

003592

Owner's Manual for MLT6SM/6SK Light Tower

General Information
Place Trailer Tongue in Storage Position
1. Verify unit is on a level surface and wheels are blocked.
A
2. See Figure 2-6. Extend jack (A) enough to allow minimum effort to pivot trailer tongue into storage position.

003593

Figure 2-6. Extend Jack and Remove Pins

3. Remove pins (B) and (C) from trailer tongue.
CAUTION
Pinching and crushing hazard. To avoid possible injury, keep fingers away from pivot point when folding or unfolding trailer tongue.
(000313)
4. See Figure 2-7. Pivot trailer tongue into storage position.
NOTE: Varying levels of effort may be required depending on terrain.

C B

003591

Figure 2-8. Install Pins and Rotate Jack

6. Remove clevis and remove jack (A) from tongue weldment.
7. Completely retract jack.
8. Rotate jack 90° counterclockwise, place jack on tongue weldment, and install clevis to secure jack parallel to ground.

003520
Figure 2-7. Pivot Trailer Tongue Into Storage Position 5. See Figure 2-8. Install pins (B) and (C) at locations shown to secure trailer tongue in storage position.
14

Owner's Manual for MLT6SM/6SK Light Tower

Unit Dimensions
A

B C

General Information

Figure 2-9. Unit Dimensions

MLT6SM MLT6SK

A 118 in (3 m)

B 101 in (2.6 m)

Specifications are subject to change without notice.

C 23 ft (7 m)

E
006451

D 57 in (1.5 m)

E 120.5 in (3.1 m)

Owner's Manual for MLT6SM/6SK Light Tower

General Information
Component Locations
H G
F
E
D

A
B C

Figure 2-10. Component Locations--Front and Left Side

A Grounding studs:

E Tongue jack

Interior: On enclosure floor behind controller

Exterior: On bumper

B Outriggers and Jacks (2)

F Mast rotation knob

C Fuel fill

G Winch

D Tie-down locations (4)

H Lights (4)

D
006452

Owner's Manual for MLT6SM/6SK Light Tower

General Information

J
P N

M L
L
Figure 2-11. Component Locations--Rear and Right Side

006453

J Central lift point K Engine/radiator access hood L Forklift pocket

M Tandem tow mount (optional--not shown) N Hood latch P Key start controller or Power ZoneTM-DLA controller
(optional--not shown)

Owner's Manual for MLT6SM/6SK Light Tower

General Information

Control Panel

I H

DC CIRCUIT BREAKER

MAST LIGHT CIRCUIT BREAKERS

AC CIRCUIT BREAKERS

CONTROL POWER
MAIN CIRCUIT BREAKER

J
L H G

A
DC CIRCUIT BREAKER
12V

B
AC CIRCUIT BREAKER
120V

15 SEC. MAX.
STOP
MAIN BREAKER
240V
I
O

C D C
E

Control Panel with Power Zone (if equipped)

Control Panel without Power Zone

Figure 2-12. Control Panel Features

004385a

Control Panel Features and Functions

(A) DC circuit breaker
Resets the DC electrical circuit that powers the control panel and engine components.

(F) 240VAC/30A twist-lock receptacle
Customer convenience receptacle for use in connecting auxiliary equipment such as fans, pumps, or drills.

(B) AC circuit breaker Resets the AC electrical circuit that powers the control panel.
(C) Mast light switches/circuit breakers (4) Power switches with internal breakers dedicated to individual lights.
(D) Mast switch (if equipped) Raises and lowers the mast on units equipped with an electric winch.
(E) 120V/20A GFCI receptacle Customer convenience receptacle for use in connecting auxiliary equipment such as fans, pumps, or drills. Includes a ground fault circuit interrupter (GFCI) test and reset button.

(G) Engine hour meter Displays number of hours the engine has run.
(H) Main circuit breaker 240V/30A breaker which disconnects power from the lights and control panel.
(I) Control power switch Turns the controller ON and OFF.
(J) Power Zone controller Monitors the unit and indicates operational status and fault conditions.
(K) Mast light circuit breakers (4) Circuit breakers with internal breakers dedicated to individual lights.

(L) 4-Position key switch Operates the engine.

Owner's Manual for MLT6SM/6SK Light Tower

General Information

Power ZoneDLA (If Equipped)
The Power ZoneDLA is an AUTO start controller that monitors the unit and indicates operational status and fault conditions. The controller can be programmed to automatically start or stop based on time schedule, fault condition, or load demand.
The controller constantly monitors vital generator and engine functions for a number of preprogrammed alarm and fault conditions. When a fault condition occurs, the

engine shuts down automatically and the LCD window shows the fault that caused the shutdown. To resume operation, the fault condition must be corrected.
This controller records a history of unit performance, which may be viewed at any time and will not be lost when the controller is powered down.

G B

Select

002353
Figure 2-13. Power ZoneDLA Layout

Controller Features and Functions

(A) The Liquid Crystal Display (LCD) Window
Displays the various operating screens. By viewing these screens, the operator can monitor both the engine and generator status while the unit is running.

(F) Stop LED
Illuminates when the unit is in STOP mode and flashes when an Electrical Trip and Shutdown Fault has occurred.

(B) Select LED Illuminates when the unit is running in AUTO mode.
(C) Start LED Illuminates when the unit is running in MANUAL mode.
(D) Start Button Starts the engine if there are no shutdown errors and the engine is in "ready to start" status.

(G) Select Button Confirms entries chosen in the various edit menus and screens.
(H) Menu Navigation Up/down arrows (, ) used to navigate through the various operator screens. They are also used to raise and lower the mast on units equipped with an electric winch.

(E) Stop Button Shuts down the unit and puts the controller into STOP mode, whether in MANUAL mode or AUTO mode.
NOTE: To prevent damage to the generator and connected equipment, remove all loads from the generator by opening all circuit breakers (turn OFF [O]) before pressing the STOP button.

Owner's Manual for MLT6SM/6SK Light Tower

General Information

Operator Screens
See Figure 2-14. The operator screens display the most relevant and critical information needed to properly configure and use the unit. From these six screens, the operator can access information necessary to operate the unit under normal conditions.

Mast Operation Screen
See Figure 2-16. Mast Operation Screen allows the operator to raise or lower the mast.

002354
Figure 2-14. Operator Screens Location
Home Screen See Figure 2-15. The Home screen is the default screen of the controller and displays after the controller is powered up and the unit management software is loaded. It displays the controller mode, total operating hours, hours left until the next service interval, engine operating status, and engine rpm. If the unit is in AUTO mode, the Home screen may also display whether the scheduler or "dusk to dawn" is enabled.

004765
Figure 2-16. Mast Operation Screen
Battery Voltage Screen See Figure 2-17. Displays the engine battery voltage. A normal reading is 12-14V on 12 volt systems (with the engine running).

002990
Figure 2-17. Battery Voltage Screen

Figure 2-15. Home Screen

002544

Owner's Manual for MLT6SM/6SK Light Tower

General Information

Lights Screen
See Figure 2-18. The Lights screen allows the operator to turn the lights on and off. Refer to Light Operation (Key Switch Models) for more information.

Generator Screen
See Figure 2-20. The Generator screen displays the average line voltage, frequency (in Hertz), and power factor for the generator while in operation.

Figure 2-18. Lights Screen

002327

Line Amperage Screen
See Figure 2-19. The Line Amperage screen displays the AC output amperage produced by the generator in amps (A). The load balance for each line (L1 and L3) is displayed in both numerical and graphical form. It is important to maintain a balanced load distribution between lines for optimum generator performance.

Figure 2-20. Generator Screen

002981

Dusk to Dawn Screen
NOTE: This feature will only work in AUTO mode.
See Figure 2-21. The Dusk to Dawn screen enables or disables the "dusk to dawn" function. This function uses a photo sensor to detect the surrounding light level, automatically starting the engine and turning the lights on at dusk. The engine will run and the lights will remain illuminated until dawn.

002980
Figure 2-19. Line Amperage Screen

002328
Figure 2-21. Dusk to Dawn Screen

Owner's Manual for MLT6SM/6SK Light Tower

General Information

Scheduler Screen
NOTE: This feature will only work in AUTO mode.
See Figure 2-22. The Scheduler screen allows the operator to program specific times for the lights to turn on and off. Once programmed, the Scheduler will start the engine and illuminate the lights until the designated shutdown time.

Icon

Description Event log screen About screen

Proceed as follows to enter the navigation menu:
1. Press both the and buttons simultaneously. 2. To select the required icon, press the button to
cycle right and the button to cycle left until the desired operator screen section is reached. 3. Press the Select () button to enter the desired operator screen section.
NOTE: Every time the operator screens are entered, the home icon will be located at the top of the screen.
Home Screens
See Figure 2-24. The Home ( ) screen is the default screen of the controller and displays after the controller has powered up. The controller automatically returns to Home screen from any other screen after a period of inactivity.

002329

Figure 2-22. Scheduler Screen

Maintenance Screens
See Figure 2-23. The information displayed on the maintenance screens can be used to identify, diagnose, and troubleshoot unit shutdown conditions and poor unit performance.

002544
Figure 2-24. Home Screen (MANUAL Mode Shown)

Alarms Screen
See Figure 2-25. The Alarms ( ) screen displays all the alarms, warnings, and engine Diagnostic Trouble Code (DTC) faults. When an alarm occurs, the controller automatically switches to this screen and remains there until the alarm is cleared. The Stop LED also flashes.

003779
Figure 2-23. Maintenance Screens

Icon

Description Home screen Alarms screen Maintenance screen

Figure 2-25. Alarms Screen

003780

Owner's Manual for MLT6SM/6SK Light Tower

General Information

· Warnings are non-critical alarm conditions and do
not affect the operation of the generator system. They serve to draw the operator's attention to an undesirable condition. By default, warning alarms are self-resetting when the fault condition is removed.
· Electrical trips stop the generator in a controlled
manner. On initiation of the electrical trip condition, the controller de-energizes all the outputs, including the lights, to remove the load from the generator. Once this has occurred, the controller starts the cooling timer and allows the engine to cool off-load before shutting down the engine.
· Shutdown alarms stop the generator immediately.
On initiation of the shutdown condition, the controller de-energizes all the outputs, including the lights, to remove the load from the generator. Once this has occurred, the controller shuts the generator set down immediately to prevent further damage.
· DTC faults are displayed by the controller.

Table 2-1. Possible DTC Faults

Fault Check Engine Fault
Low Oil Pressure
Underspeed
Overspeed
Low Fuel Level
Battery Under/ Over Voltage

DTC Description
A fault not recognized by the controller has been detected. Contact the engine manufacturer for support.
Engine oil pressure has fallen below its configured low oil pressure alarm level.
Engine speed has fallen below its configured underspeed alarm level.
Engine speed has risen above its configured overspeed alarm level.
Engine's fuel level has fallen below its configured low fuel level alarm.
Engine's DC supply has fallen below or risen above its configured alarm level.

To clear alarms that stop the generator, refer to Resetting the Maintenance Alarms (If Equipped).
NOTE: The LCD backlight is on if the unit has sufficient voltage while the unit is turned on, unless the unit is cranking. In this case, the backlight is turned off.
If the controller is left in STOP mode for a period of inactivity, the controller enters POWER SAVE mode. To `wake' the controller, press the Stop (O) button.
Maintenance Screen
See Figure 2-26. The Maintenance screen ( ) displays the maintenance alarms configured into the controller. The three alarms are for servicing the fuel filter, oil filter, and air filter.

Figure 2-26. Maintenance Screen

003781

Event Log Screen
See Figure 2-27. The controller's event log ( ) displays a list of the last 15 recorded electrical trips or shutdown events and the engine hours at which they occurred. Once the log is full, any subsequent electrical trip or shutdown alarm overwrites the oldest entry in the log. The log always contains the most recent shutdown alarms.

To view the active alarms, repeatedly press the and buttons until the LCD window displays the alarm. Continue to press the and buttons to cycle through the alarms. To exit the alarm screen, press the and buttons simultaneously to enter the navigation menu. Once entered, cycle to the desired operator screen.
NOTE: The alarm condition must be corrected before a reset will take place. If the alarm condition remains, it is not possible to reset the unit. The exception to this is the Low Oil Pressure alarm and similar `active from safety on' alarms, as the oil pressure is low with the engine at rest.
Owner's Manual for MLT6SM/6SK Light Tower

Figure 2-27. Event Log Screen

003782

Proceed as follows to view the event log: 1. Press both and buttons simultaneously to display the navigation menu. 2. Cycle to the event log section and press the Auto button to enter.
23

General Information
3. Repeatedly press the or buttons until the LCD window displays the desired event.
Continuing to press down the or buttons will cycle through past alarms. Eventually the most recent alarm will display and the cycle begins again. To exit the event log, press the and buttons simultaneously to enter the navigation menu. Once entered, cycle to the desired operator screen.
About Screen
See Figure 2-28. The About ( ) screen contains information about the controller such as the controller's date and time, the product and USB identification number, and the application and engine version.

Figure 2-28. About Screen

003783

Owner's Manual for MLT6SM/6SK Light Tower

Section 3: Operation
Light Tower Setup

Operation

DETAIL B

C D F

DETAIL C

E A

B
DETAIL D

G
Figure 3-1. Set Up Outriggers and Jacks

DETAIL E
006454

DANGER

High Voltage. Verify area above unit is clear

of overhead wires and obstructions. Contact

with high-voltage power lines will result in

death or serious injury.

(000260a)

WARNING

> 60 mph Do not set up the unit if high winds

are expected. High winds can cause the

unit to tip or fall, causing severe injury

or machine damage.

(000297)

1. For maximum light coverage, position the unit at ground level or in a spot higher than the area being illuminated by the lamps.
NOTE: The mast extends up to 23 ft (7 m).

2. Place the unit on firm ground that is relatively flat (less than 5° slope), and then block the wheels to prohibit movement. This will make it easier to level the unit.
3. See Figure 3-1. Pull the locking pin (A) on the tongue jack (E) and rotate the jack 90°. Reinstall the locking pin. Rotate the jack handle clockwise to raise the trailer tongue off the towing vehicle.
4. A grounding stud (B) is located on the rear frame of the trailer near the left side outrigger. For grounding requirements, follow local, state, or National Electrical Code (NEC) guidelines.
5. See Details C--D. Pull the locking pins (C) on the outriggers (D) and pull each outrigger out until the spring loaded locking pin snaps back into place. Pull the locking pin on each outrigger jack (F) and rotate each jack 180° so the jack pad is facing down. Reinstall the locking pin.

Owner's Manual for MLT6SM/6SK Light Tower

Operation
6. See Detail E. Rotate each jack handle clockwise to start leveling the trailer. Adjust all three jacks by rotating their handles clockwise until they are firmly in contact with the ground. Continue until the wheels are approximately 1 in (2.5 cm) off the ground (G).
7. Before raising the mast, it may be necessary to adjust the lamps. The lamps may be adjusted up, down, left, or right by aiming them in the desired direction.
Raising the Mast--Manual Winch
DANGER
Electrocution. DO NOT use the unit if electrical cord is cut or worn through. Doing so will result in death or serious injury.
(000263a)

the mast rotation knob to secure the mast in position.
4. Using both hands, rotate the winch (B) to slowly extend the mast. Verify the coiled electrical cord is extending at the top sections of the mast. Stop extending the mast when the colored mark (D) on the second mast section is visible as seen in Detail D.

WARNING

Tipping hazard. Extend the outriggers and level the unit

before raising the mast. Keep the outriggers extended while

the mast is up. Failure to do so could cause the unit to tip

and fall and could result in death or serious injury. (000266)

STOP
DETAIL D

WARNING

Tipping hazard. Do not extend the mast beyond the

colored mark on the second mast section. The unit

can become unstable and tip or fall, causing injury.

(000262) B

WARNING

Personal Injury. Stop immediately if the mast hangs

up or the winch cable develops slack. Excess slack

could cause the mast to collapse, resulting in personal

injury or equipment damage.

(000265)

WARNING

Personal injury or equipment damage. Do not raise

or lower the mast while the unit is operating.

Doing so can break the lenses and cause the

lamps to shatter.

(000279)

1. Set up and level the unit. See Light Tower Setup.
2. See Figure 3-2. Inspect the mast cables for excessive wear or damage. Verify the cables are properly centered in each pulley (A). Inspect the electrical cord for damage.
3. Rotate the mast by loosening the mast rotation knob (C) at the bottom of the mast. Turn the mast until the lights face in the desired direction. Tighten

002532
Figure 3-2. Pulley Locations--Manual Winch
IMPORTANT NOTE: Contact a GMP ASD immediately if the mast hangs up or the winch cable develops slack.

Owner's Manual for MLT6SM/6SK Light Tower

Raising the Mast--Electric Winch (If Equipped)
DANGER
Electrocution. DO NOT use the unit if electrical cord is cut or worn through. Doing so will result in death or serious injury.
(000263a)

WARNING
Tipping hazard. Do not extend the mast beyond the colored mark on the second mast section. The unit can become unstable and tip or fall, causing injury.
(000262)

WARNING

Personal Injury. Stop immediately if the mast hangs

up or the winch cable develops slack. Excess slack

could cause the mast to collapse, resulting in personal

injury or equipment damage.

(000265)

WARNING

Personal injury or equipment damage. Do not raise

or lower the mast while the unit is operating.

Doing so can break the lenses and cause the

lamps to shatter.

(000279)

Owner's Manual for MLT6SM/6SK Light Tower

Operation 1. Set up and level the unit. See Light Tower Setup.

DETAIL B
STOP
A
DETAIL C C

002533
Figure 3-3. Switch & Pulley Locations--Electric Winch
2. See Figure 3-3. Inspect the mast cables for excessive wear or damage. Verify the cables are properly centered in each pulley (A). Inspect the electrical cord for damage.
3. Rotate the mast by loosening the mast rotation knob at the bottom of the mast (D). Turn the mast until the lights face in the desired direction. Tighten the mast rotation knob to secure the mast in position.
NOTE: On Key Switch models, key must be in RUN position to operate electric winch.
4. Press and hold the winch control switch (Detail B) upward to telescope the mast to the desired height. While doing so, verify that the coiled electrical cord
27

Operation
is extending at the top sections of the mast. Stop extending the mast when the colored mark (C) on the second mast section is visible as seen in Detail C.
IMPORTANT NOTE: A limit switch on the main mast section will disconnect power to the electric winch to prevent overextending the mast.
IMPORTANT NOTE: Contact a GMP ASD immediately if the mast hangs up or the winch cable develops slack.
Raising the Mast--Power ZoneDLA (If Equipped)
DANGER
Electrocution. DO NOT use the unit if electrical cord is cut or worn through. Doing so will result in death or serious injury.
(000263a)

3. See Figure 2 and Figure 3-5. Press the up/down arrows (A) until the mast screen is shown.
A
Select
B
002353
Figure 3-4. Power Zone Controller

WARNING
Tipping hazard. Do not extend the mast beyond the colored mark on the second mast section. The unit can become unstable and tip or fall, causing injury.
(000262)

WARNING

Personal Injury. Stop immediately if the mast hangs

up or the winch cable develops slack. Excess slack

could cause the mast to collapse, resulting in personal

injury or equipment damage.

(000265)

WARNING

Personal injury or equipment damage. Do not raise

or lower the mast while the unit is operating.

Doing so can break the lenses and cause the

lamps to shatter.

(000279)

Figure 3-5. Raising the Mast Screen
4. Press the SELECT button (B); the UP/DOWN on the display will begin to flash. Press the arrows as needed until the mast is at the desired height. See Figure 3-3. Do not extend past the colored mark (C).
5. Press SELECT again to exit the mast control screen.
IMPORTANT NOTE: Contact a GMP ASD immediately if the mast hangs up or the winch cable develops slack.

NOTE: Units with the Power Zone-DLA do not have a mast switch for the electric winch.
1. Set up and level the unit. See Light Tower Setup. 2. Turn the control power switch to on.

Owner's Manual for MLT6SM/6SK Light Tower

Operation

Prestart Checklist
Before starting the unit, all items in the prestart checklist must be completed. This checklist applies to both manual and remote starting of the unit.
WARNING
Consult Manual. Read and understand manual completely before using product. Failure to completely understand manual and product could result in death or serious injury.(000100a)
Verify all maintenance procedures are up to date. For
more information, refer to General Maintenance and Basic Maintenance Schedule.
Perform a walk-around inspection. Refer to Daily
Walk-Around Inspection.
The unit must be level. The unit must be dry. Inspect for water inside or near
the unit; dry if needed.
For grounding requirements, follow the National
Electrical Code (NEC), state, and local regulations.
Verify the control power switch is OFF (O). Verify all circuit breakers are OFF (O). Inspect all electrical cords; repair or replace any that
are cut, worn, or bare.
Verify all winch cables are in good condition and
centered on each pulley. Do not use if cables are kinked or beginning to unravel.
Check oil, coolant, and fuel levels. For more
information, refer to General Maintenance.
Verify battery connections are secure. Turn the battery disconnect switch on, if equipped. Inspect the engine fan belt tension and condition. Inspect the engine fan belt guard. Inspect the engine exhaust system for loose or
rusted components.
Verify all covers are in place and secure.

Starting the Unit (Key Switch Models)
CAUTION
Equipment Damage. Do not continuously crank engine for more than ten seconds. Doing so will lead to overdischarge of batteries and starter seizure.
(000230)
NOTE: If the engine was run out of fuel or the fuel tank was drained, it may be necessary to purge the fuel lines. Refer to the engine operator's manual supplied with the unit.
1. See Figure 3-6. Verify the main circuit breaker and individual circuit breakers for each of the lights are OFF (O).

MAIN BREAKER
240V

004386a

Figure 3-6. Circuit Breakers in OFF (O) Position

2. See Figure 3-7. Turn the key on the Engine Start switch to the right GLOW PLUG position and hold the key in place for five seconds.

Figure 3-7. Activate Glow Plug

Owner's Manual for MLT6SM/6SK Light Tower

Operation
3. See Figure 3-8. Turn the key to the right START position and hold it until the engine cranks and starts running.

002354
Figure 3-10. Select AUTO or MANUAL Mode

Figure 3-8. Crank Engine 4. See Figure 3-9. Release the key, it will move to the
RUN position.
Figure 3-9. Release Key
Preparing for Start-Up (Power ZoneDLA)
NOTE: If the engine was run out of fuel or the fuel tank was drained, it may be necessary to purge the fuel lines before starting. Refer to the engine manual supplied with the unit.
Select AUTO or MANUAL Mode
See Figure 3-10. Using the arrows on the Power Zone DLA, select either AUTO or MANUAL on the Home screen.
· AUTO mode is required for programming auto-
matic start and stop times (see Scheduler Screen), or enabling the "dusk to dawn" sensor (see Dusk to Dawn Sensor (Power ZoneDLA) (If Equipped)).
· MANUAL mode is used for on-demand control of
the lights and convenience receptacles.

Manually Starting the Unit
STOP mode is the default start-up setting for all units equipped with the Power ZoneDLA. Proceed as follows to start the generator in MANUAL mode.
1. Verify the 240VAC outlet breaker is set to OFF (O).
2. Set the main circuit breaker ON (I).
3. When the controller powers up, the Home screen displays on the LCD screen and the Stop LED illuminates to indicate that the controller is in STOP mode. Press the Start button to initiate the startup procedure. If there are no existing engine faults, the engine will start and the Start LED will illuminate.
NOTE: The engine can be started from any screen. It may take a few seconds for the engine to run smoothly and reach its governed operating speed.
4. If the engine does not start after the first cranking attempt, the engine will pause for 15 seconds to allow the starter to cool. The controller backlight will go out. The engine will make two more attempts to start for a total of three crank cycles.
5. If the engine does not start and run within three starting cycles, the LCD screen will display the "Fail to Start" alarm. The starting sequence can be repeated after the starter cools for at least two minutes. Pressing the Stop (O) button will clear the alarm and reset the controller.

Owner's Manual for MLT6SM/6SK Light Tower

Operation

Light Operation (Key Switch Models)
WARNING
Burn hazard. Never operate lights with a damaged or missing lens cover. Lamps are hot and pressurized while in use. Unprotected lamps can shatter, causing severe injury.
(000277)
1. Verify the unit is ON and running smoothly. 2. See Figure 3-11. Switch the main circuit breaker
(A) ON (I). 3. Switch the individual circuit breakers for the lights
(B) ON (I), one at a time.

Light Operation (Power Zone DLA) (If Equipped)
See Figure 3-12. The lights are turned on and off using the Power ZoneDLA. To view the light screen, press the button three times from the Home screen.
NOTE: The lights can only be turned ON and OFF while the unit is running in MANUAL mode. They operate automatically in AUTO mode.
1. Once the engine is up to temperature and running smoothly, switch the main circuit breaker ON (I).
2. To turn the light(s) ON, press the Select () button. To turn the light(s) OFF, press the Select () button.

B A

000033999911

Figure 3-11. Light Switches and Breaker

NOTE: The lights require a warm up period of 515 minutes before they reach full output. If the lights are shut down, they require a cool down period of approximately 10 minutes before they can be switched on again.
NOTE: The light tower uses four 1000W, 1050W or 1100W bulbs. When checking or replacing the bulbs, wipe them with a clean cloth to avoid leaving any grease, oil residue or fingerprints on the glass. Any residue can create a hot spot on the bulb, causing premature bulb failure.
WARNING
Burn hazard. Lamps become extremely hot while in use. Allow 1015 minutes for cooling before handling or lowering mast. Touching a hot lens or fixture can cause severe burns.
(000278)

002327
Figure 3-12. Lights Screen
WARNING
Burn hazard. Lamps become extremely hot while in use. Allow 1015 minutes for cooling before handling or lowering mast. Touching a hot lens or fixture can cause severe burns.
(000278)
Engine Derating
All units are subject to derating for altitude and temperature. Derating reduces the available power for operating tools and accessories connected to the receptacles. For every increase in 1,000 ft (305 m) of elevation, engine performance for this unit typically drops between 24%. Also, engine performance decreases about 1% for every 10 °F (5.6 ºC) increase in ambient air temperature over 72 ºF (22 ºC).

Owner's Manual for MLT6SM/6SK Light Tower

Operation

Wet Stacking
The unit is powered by a diesel engine. Diesel engines are subject to "wet stacking" if lightly loaded. Wet stacking occurs when an engine is run at less than 30% of its full load capacity, causing unburned fuel to accumulate in the exhaust system. Wet stacking can be detected by continuous black exhaust when the unit is under a constant load. It can also cause fouling of injectors and buildup on engine valves. Diesel engines operate properly when applied loads are between 30 100% capacity. Appropriate generator sizing is determined by the anticipated load. If the unit is in a wet stack condition, load the unit heavily for five hours or until the exhaust is clear.

Customer Convenience Receptacles
See Figure 3-14. The unit is equipped with convenience receptacles for powering accessories or tools from the generator. Power is supplied to the receptacles any time the engine is running and the main circuit breaker is switched to the ON (I) position. Each receptacle has an individual circuit breaker, located on the control box. Refer to Control Panel.

Dusk to Dawn Sensor (Power ZoneDLA) (If Equipped)
See Figure 3-13. If equipped with the Power Zone-DLA controller, this unit includes a "dusk to dawn" nightwatchman sensor (A) to detect the surrounding light level, automatically starting the engine and turning the lights on at dusk. The engine will run and the lights will remain illuminated until dawn. To prepare the sensor for use, perform the following procedure at the time of day you want the lights to turn on:
1. Verify the Power ZoneDLA is set up and the unit is on.
2. Slide the light shield bracket up, decreasing the sensor's exposure to light, until the lights turn on.
3. Tighten screws on shield.
A

002535
Figure 3-14. Convenience Receptacles
The circuit breakers are labeled with the corresponding voltage for the receptacle they protect. The standard receptacle panel is equipped with the following receptacles:
· One 240V/30A Twist-lock (A)
· One120V/20A GFCI (B)
NOTE: Do not draw more than 800W from each receptacle when 1100W bulbs are equipped, 1000W when 1050W bulbs are equipped, and 900W when 1000W bulbs are equipped. the lights are on. This will overload the generator and cause the main circuit breaker to trip. If the breaker trips, switch off the lights, remove some of the loads connected to the receptacles and wait 10 minutes for the bulbs to cool before turning them back on.
With the lights off, the full generator output may be used with the 240V twist-lock receptacle.

002528
Figure 3-13. Dusk to Dawn Sensor

Shutting Down the Unit
Verify with personnel using power supplied by the unit and notify them power will be turned off. Verify the power shutdown will not create any hazards by accidentally turning off equipment that needs to remain running (pumps, compressors, lights, etc.).
1. Remove all loads from the receptacles.
2. Switch the individual circuit breakers for each light OFF (O).
3. Switch the main circuit breaker OFF (O).
4. Move the control power switch to STOP.

Owner's Manual for MLT6SM/6SK Light Tower

Operation

Shutting Down the Unit (Power ZoneDLA) (If Equipped)
Verify with personnel using power supplied by the unit and notify them power will be turned off. Verify the power shutdown will not create any hazards by accidentally turning off equipment that needs to remain running (pumps, compressors, lights, etc.).
1. Remove all loads from the receptacles.
2. Turn the lights off using the controller.
3. Switch the main circuit breaker OFF (O).
4. Press the Stop (O) button.
5. After the unit shuts down, switch the control power switch OFF (O).
NOTE: Disconnect the battery if the unit will be stored for an extended period. Refer to the engine operator's manual for additional extended storage procedures.
Automatic Shutdown
This unit is equipped with a low oil pressure and high coolant temperature automatic shutdown system. This system automatically shuts off the fuel supply to stop the engine if oil pressure drops too low, or the engine exceeds normal operating temperature. Return the main circuit breaker to STOP to reset the unit after the cause of shutdown has been determined.

Lowering the Mast--Manual Winch

WARNING
Burn hazard. Lamps become extremely hot while in use. Allow 1015 minutes for cooling before handling or lowering mast. Touching a hot lens or fixture can cause severe burns.
(000278)

1. Shut down the lights and engine. See Shutting Down the Unit. Allow lights 1015 minutes to cool.

2. Lower the mast.

3. Use the winch handles to collapse the mast to its lowest position. Verify the electrical cord does not get caught in, or pinched by, the mast while it is being lowered.
.

WARNING

Personal Injury. Stop immediately if the mast hangs

up or the winch cable develops slack. Excess slack

could cause the mast to collapse, resulting in personal

injury or equipment damage.

(000265)

IMPORTANT NOTE: Contact a GMP ASD immediately if the mast hangs up or the winch cable develops slack.

Owner's Manual for MLT6SM/6SK Light Tower

4. See Figure 3-15. If the unit is going to be moved, rotate the mast so the lights face the rear of the unit.
003990
Figure 3-15. Stowed (Travel) Position
To rotate the mast: a. Loosen the mast rotation knob. b. Rotate the mast until the white arrows are aligned and the metal stop tabs are touching. c. Tighten the mast rotation knob.
Lowering the Mast--Electric Winch (If Equipped)
WARNING
Burn hazard. Lamps become extremely hot while in use. Allow 1015 minutes for cooling before handling or lowering mast. Touching a hot lens or fixture can cause severe burns.
(000278)
NOTE: On key switch models, key must be in RUN to operate electric winch.
1. Shut down lights and allow 1015 minutes to cool. 2. Press and hold the upper winch control switch
downward to collapse the mast to its lowest position. Verify the electrical cord does not get caught in, or pinched by, the mast while it is being lowered. 3. Shut down the engine. See Shutting Down the Unit. 4. If the unit is going to be moved, rotate the mast so the lights face the rear of the unit. To rotate the mast: a. Loosen the mast rotation knob. b. Rotate the mast until the white arrows are
aligned and the metal stop tabs are touching. c. Tighten the mast rotation knob. NOTE: The electric winch models are equipped with a safety limit switch. This switch disconnects power to the winch after the mast is completely raised or lowered. This prevents the cable from continuing to unwind and becoming entangled around the winch drum.
33

Operation

WARNING

Personal Injury. Stop immediately if the mast hangs

up or the winch cable develops slack. Excess slack

could cause the mast to collapse, resulting in personal

injury or equipment damage.

(000265)

IMPORTANT NOTE: Contact a GMP ASD immediately if the mast hangs up or the winch cable develops slack.
NOTE: If the light tower is not operational, and the batteries do not have enough power to lower the mast, it may be necessary to lower the mast manually. Always attempt to recharge the batteries and lower the mast electrically before proceeding.

Manually Lowering the Mast
IMPORTANT NOTE: Do not use this procedure unless it is absolutely necessary. Frequent use of this procedure could damage the motor shaft.
1. See Figure 3-16. Remove the motor cover (A).

004765
Figure 3-17. Lowering the Mast Screen

3. Press the SELECT button; the UP/DOWN on the display will begin to flash. Press the down arrow as needed until the mast is lowered.

4. Press SELECT again to exit the mast control screen.
.

WARNING

Personal Injury. Stop immediately if the mast hangs

up or the winch cable develops slack. Excess slack

could cause the mast to collapse, resulting in personal

injury or equipment damage.

(000265)

IMPORTANT NOTE: Contact a GMP ASD immediately if the mast hangs up or the winch cable develops slack.
5. If the unit is going to be moved, rotate the mast so the lights face the rear of the unit. See Raising the Mast--Manual Winch.

002832
Figure 3-16. Manually Lowering the Mast
2. Attach a drill chuck firmly to the exposed motor shaft (B).
3. Using the drill, slowly rotate the motor shaft counterclockwise to lower mast.
4. Detach the drill chuck and install the motor cover after the mast is completely lowered.
Lowering the Mast--Power ZoneDLA (If Equipped)
NOTE: Units with the Power Zone-DLA do not have a mast switch for the electric winch.
1. Verify Power Zone-DLA controller is powered on. 2. Press the up/down arrows next to the controller
display until the mast screen is shown. See Figure 3-17.

Positive Air Shutdown (PAS) (If Equipped)
See Figure 3-18. This unit may be equipped with a positive air shutdown (A) on the air intake. The PAS system automatically stops the engine if an overspeed is detected. Engine overspeed can occur if the atmosphere contains elevated levels of combustible propane or natural gas.
B
A
C
002535
Figure 3-18. Positive Air Shutdown

Owner's Manual for MLT6SM/6SK Light Tower

Operation

The PAS system stops the engine by closing an internal valve and obstructing intake air. Shutdown is triggered automatically by an output from the controller or manually by pulling the T-handle (B). The reset knob (C) rotates 90° to block airflow. If the knob is parallel to the pipe centerline (as shown), the valve is open. If the knob is perpendicular to the pipe centerline, the valve is closed and airflow is blocked.
Test the PAS
Test the PAS at least once a month to ensure optimal valve performance. There are two methods:
1. Pull the T-handle. (NOTE: The valve must be open before testing.)
2. Press the emergency stop button. Testing the PAS triggers an actuator, closing the butterfly valve inside the valve body. An audible click can be heard when the actuator engages. Confirm that the valve is closed by verifying that the knob has rotated perpendicular to the pipe centerline. If valve does not close, contact Generac Mobile Products Technical Support.
Reset the PAS
IMPORTANT NOTE: Before resetting the PAS, turn the control power switch OFF (O). This will prevent unexpected engine start-up during the procedure.
1. Rotate the reset knob and hold it in place while pulling the T-handle until reset knob rotates counterclockwise into plunger detent. An audible "click" indicates the reset knob has seated properly.
2. Verify that the reset knob is parallel to the intake pipe centerline.
3. Release T-handle, and then release reset knob. The reset knob should remain parallel to the intake pipe centerline.
Lower Radiator Hose Heater (If Equipped)
The lower radiator hose heater is designed to prevent engine coolant from freezing in extreme cold weather conditions. While the heater is designed to be operated overnight if necessary, 25 hours of heating just prior to starting is usually sufficient for proper engine starting.
NOTE: Use the lower radiator hose heater only in its designated location. Incorrect use can damage the engine.
Proceed as follows when operating a unit equipped with a lower radiator hose heater.
1. Verify the unit is level to maintain correct orientation of the heater while it is in operation.
2. Verify the cooling system is full of the correct mixture of water and engine coolant before each heater use.

3. Use only an undamaged, outdoor rated, threeprong grounded 120VAC extension cord with a minimum amperage rating of 10A. Connect the cord to a properly grounded 120VAC GFCI outlet.
4. Before starting the engine, unplug the extension cord from the power first, then unplug the heater cord set from the extension cord.
Tandem Tow (If Equipped)
See Figure 3-19. The tandem tow hitch option (A) allows the operator to tow a second MLT6 Light Tower in series behind the unit equipped with the hitch.
IMPORTANT NOTE: Never tow more than two units at once.
· Connect any trailer wiring to the unit in front (B).
Inspect for proper operation of the directional and brake lights.
· Connect the towing chains to the tie down locations
(C).
· Avoid sharp turns when towing. Do not cross any
obstacles more than 12 in (30.5 cm) deep.
· Tandem tow speeds:
a. Paved highway--45 mph (72 km/h) b. Graded gravel--25 mph (40 km/h) c. Cross country--10 mph (16 km/h)
C
A

C B

Figure 3-19. Tandem Tow

004770

Telemetry (If Equipped)
The digital telemetry option enables the operator to remotely monitor the unit fuel level. A transmitter inside the engine compartment sends real time equipment status information to the user via cellular or satellite connection.

Spark Arrester (If Equipped)
A spark arrester, installed on the unit exhaust, may be required by code in certain municipalities. Contact the local authority having jurisdiction to determine if a spark arrester must be installed on the unit before operation.

Owner's Manual for MLT6SM/6SK Light Tower

Operation
Heated Fuel Filter (If Equipped)
See Figure 3-20. An optional heated fuel filter (A) prevents diesel fuel from gelling in extremely cold temperatures. Heating cycles are automatically controlled by the Power ZoneDLA.

003754
Figure 3-21. Tightening Wheel Lugs

A
Figure 3-20. Heated Fuel Filter
Towing the Unit
Once the engine is shut down and the mast and lights are correctly stowed, proceed as follows to prepare the unit for towing.
1. Raise the outrigger jacks completely and release the locking pins to rotate them up into the travel position. Verify the locking pins snap into place. Release the outrigger locking pins and slide the outriggers into the trailer frame until the locking pins snap into place.
2. Use the tongue jack to raise or lower the trailer onto the hitch of the towing vehicle. Lock the hitch coupling and attach the safety chains or cables to the vehicle. Remove the tongue jack locking pin and rotate the jack into the travel position. Replace the locking pin.
3. To ensure correct operation of the jacks, refer to Trailer Wheel Bearings. For maintenance interval information, refer to Basic Maintenance Schedule.
4. Connect any trailer wiring to the tow vehicle. Inspect for correct operation of the directional and brake lights.
5. Verify the enclosure is correctly latched. 6. Check for correct inflation of the trailer tires. For
maximum tire pressures, refer to Specifications. 7. See Figure 3-21. Inspect the wheel lugs. Tighten
or replace any lugs that are loose or missing. If a tire has been removed for axle service or replaced, tighten the lugs, in the order shown, to the following specifications:

a. Start all lug nuts by hand. b. First pass: tighten to 20-25 ft-lbs (27-33 Nm). c. Second pass: tighten to 50-60 ft-lbs (67-81 Nm). d. Third pass: tighten to 90-120 ft-lbs (122-162 Nm).
NOTE: After the first road use, torque the lug nuts in sequence.
8. Maximum recommended speed for highway towing is 45 mph (72 km/h). Recommended off-road towing speed is not to exceed 10 mph (16 km/h) or less, depending on the terrain.
Lifting the Unit
Proceed as follows to prepare the unit for lifting: 1. Verify the equipment being used to lift the unit is in good condition and has sufficient capacity. For approximate weights, refer to Specifications. 2. Close and lock all hoods and doors. 3. See Figure 3-22. Stow the mast and lights in the travel position as shown. 4. Always remain aware of people and objects around the unit while preparing, maneuvering, and lifting the unit.
· When lifting the unit, attach any slings, chains, or hooks directly to the central lift point (A). The central lift point is located on top of the enclosure, connected to a lift structure inside the unit.

Owner's Manual for MLT6SM/6SK Light Tower

B
Figure 3-22. Lifting Points

006456

· Use the forklift pockets (B) with care. Lift directly from the rear. Avoid approaching the unit at an angle, as this can permanently damage the forklift pockets, tires, or cabinet. Verify any obstructions are clear of the forklift tines before lifting.

Tying the Unit Down
When securing the unit for transportation, verify the equipment being used to fasten the unit is in good condition and has sufficient strength to hold the unit in place during transport. See Figure 3-23. Use the tie-down points (C) as shown.

C
Figure 3-23. Tie-Down Points

002538

Owner's Manual for MLT6SM/6SK Light Tower

Operation 37

Operation
This page intentionally left blank.

Owner's Manual for MLT6SM/6SK Light Tower

Section 4: Maintenance

Maintenance

Emissions Information
For warranty information, please refer to the diesel engine manual supplied with this unit.
Daily Walk-Around Inspection
CAUTION
Equipment Damage. Failure to perform a daily inspection could result in damage to the unit.
(000306)
Perform a walk-around inspection of the unit every day before starting the unit. Look for conditions that could hinder performance or safety, such as (but not limited to):
· Oil, coolant, and fuel leakage · Blocked vents · Loose or missing hardware · Loose or broken electrical connections
Inspect the fan belt for cracks, fraying, or stretching. Verify the belt is correctly seated in the pulley grooves. Replace the belt according to the manufacturer's recommendations.
General Maintenance
Poorly maintained equipment can become a safety hazard. In order for the equipment to operate safely and correctly over a long period of time, periodic maintenance and occasional repairs are necessary. DO NOT perform routine service (oil and filter changes, cleaning, etc.) unless all electrical components are shut off. Regular maintenance will improve performance and extend engine/equipment life. Generac Mobile Products, LLC recommends that all maintenance work be performed by a GMP ASD. Regular maintenance, replacement or repair of the emissions control devices and systems may be performed by any repair shop or person of the owner's choosing. However, to obtain emissions control warranty service free of charge, the work must be performed by a GMP ASD or authorized Mitsubishi® engine dealer depending on the repair. See the emissions warranty.
Preparing for Service
Before servicing the unit, always follow the instructions listed below.
1. If unit is equipped with the Power ZoneTM-DLA controller, verify the main circuit breaker is OFF. Otherwise, verify the key switch is OFF.
2. Verify the circuit breakers are switched OFF (O).
Owner's Manual for MLT6SM/6SK Light Tower

3. Disconnect the negative () terminal on the battery. 4. Attach a "Do Not Start" sign to the control panel to
signify that the unit is being serviced and reduce the chance of unauthorized use.
Cleaning the Unit
CAUTION
Equipment damage. Never spray water to clean unit. Do not introduce water into generator widings, terminals, or fuel system during the cleaning process. Doing so will result in equipment damage. (000325a)
Always clean the unit after each use to remove dust, grease, mud, or spilled fuel or oil. Use soft, clean rags to wipe the cabinet exterior and control panel. Low-pressure compressed air (less than 40 psi [276 kPa]) can also be used to remove dust and debris from the cabinet interior. This unit contains sensitive electronic components that can be damaged by high pressure and heat. Do not:
· wash the unit with a high pressure hose or power
washer.
· wash the engine block or fuel tank with a power
washer or steam cleaner. Water may enter the cabinet and collect in the generator windings or other electrical parts, causing damage.
Inspecting the Unit
· If the unit is stored outside, inspect for water inside
the cabinet and generator before each use. If wet, dry the unit thoroughly before starting.
· Inspect condition of electrical cords. DO NOT use
the unit if insulation is cut or worn through.
· Verify winch cables are in good condition and
centered on each pulley. DO NOT use a cable that is kinked or starting to unravel.
· Verify the wheel lugs are present and correctly
tightened. Refer to Towing Safety.
· Check the coolant level daily by inspecting the
level in coolant overflow jug located near the radiator. Refer to the engine operator's manual for coolant recommendations and proper mixture. Normal operating level is between the `full' and `add' markings on the overflow jug.
· After engine is stopped and completely cool, cool-
ant may be added directly to the coolant overflow jug.
· Check the oil level daily. Refer to the engine opera-
tor's manual for the appropriate oil specification.
39

Maintenance

· Verify the oil is correct for special operating condi-
tions such as a change in season or climate.
· DO NOT start the unit if the engine oil level is below the ADD mark on the dipstick.
· Normal operating level is in the cross-hatch pattern between the full and add markings on the dipstick.
· Add oil only if the oil level is below the add mark on the bottom of the cross-hatch pattern on the dipstick. DO NOT OVERFILL the crankcase.
· Check the fuel level.
· If the unit is connected to a remote start or transfer
switch, verify the remote switch is also off and tagged.

Refer to the engine operator's manual supplied with the unit.
Basic Maintenance Schedule
Refer to the original equipment manufacturer's operating manual for a complete list of maintenance requirements. Failure to comply with the procedures as described in the engine operator's manual will nullify the warranty, decrease performance, and cause equipment damage or premature equipment failure. Maintenance records may be required to complete a warranty request.
Use the schedule in the following table as a guide for regular maintenance intervals. For additional or replacement copies of the engine operator's manual, contact a GMP ASD.

NOTE: If the engine was run out of fuel or the fuel tank was drained, it may be necessary to purge the fuel lines.

Table 4-1. Basic Maintenance Schedule--MLT6SM (Mitsubishi)

Item

Daily

First 50
Hours

Every 750
Hours

As Required

Check oil level

Check coolant level

Check fuel level

Check tire pressure

Inspect wheel bearings

Inspect all electrical connections

Inspect radiator fins for debris; clean as required

Inspect light tower winch for proper operation

Replace engine oil and oil filter Inspect and adjust belt and belt tension Replace fuel filter

Inspect battery condition

Replace air cleaner element

Lubricate leveling jacks

Purge air from fuel system

Drain residual water from fuel filter

* Generac Mobile Products, LLC recommends that oil change intervals on the MLT6SM equipped with the Mitsubishi L3E-W461ML Tier 4 engine be extended to 750 hours after initial break-in. The engine comes from the factory with a larger sump that holds 5.5 qts (5.2 L) of engine oil. After the initial 50 hour break-in and oil change, the sump, coupled with the larger oil filter, allows the engine to operate up to 750 hours between routine oil changes. Hot, humid, or dusty conditions can shorten engine oil service life, regardless of suggested oil change intervals. Always follow the recommendations of the OEM engine manual that was shipped with the unit for specific operating instructions. If further technical assistance is required, contact Generac Mobile Products Technical Service at 1-800-926-9768.

Owner's Manual for MLT6SM/6SK Light Tower

Maintenance

Table 4-2. Basic Maintenance Schedule--MLT6SK (Kubota®)

Item

Daily

First 50
Hours

Every 500
Hours

Every 750
Hours

As Required

Check oil level

Check coolant level

Check fuel level

Check tire pressure

Inspect wheel bearings

Inspect all electrical connections

Inspect radiator fins for debris; clean as required

Inspect light tower winch for correct operation

Inspect fan belt for tightness

Inspect radiator hoses and clamp bands

Replace fan belt

Replace fuel filter element

Replace air filter element Replace engine oil and oil filter Lubricate leveling jacks

Remove sediment in fuel tank

Clean air cleaner element

* Replace the air cleaner element yearly, or after six cleanings, whichever occurs first. ** Generac Mobile Products, LLC recommends that oil change intervals on the MLT6SK equipped with the Kubota
engine be extended to 750 hours after initial break-in. The engine comes from the factory with a larger sump that holds 5.5 qts (5.2 L) of engine oil. After the initial 50 hour break-in and oil change, the sump, coupled with the larger oil filter, allows the engine to operate up to 750 hours between routine oil changes. Hot, humid, or dusty conditions can shorten engine oil service life, regardless of suggested oil change intervals. Always follow the recommendations of the OEM engine manual that was shipped with the unit for specific operating instructions. If further technical assistance is required, contact Generac Mobile Products Technical Service at 1-800-926-9768.

Owner's Manual for MLT6SM/6SK Light Tower

Maintenance

Resetting the Maintenance Alarms (If Equipped)
The Power Zone-DLA controller will display a warning message when the unit is due for maintenance or service. The maintenance or service interval is set at 750 hours of engine running time. Once the unit has been serviced, the appropriate maintenance alarm reminder needs to be reset. Proceed as follows to reset the maintenance alarms:
1. With the unit shut down, set the control power switch to ON (I). After initialization, the controller will toggle automatically to the Home screen.
2. Press and simultaneously to enter the navigation menu.
3. Press or to move to the top of the screen. Press to enter the Maintenance screen.
4. Press or to highlight the desired alarm that needs to be reset. Press to start reset.
5. Enter the pin 4444. To do this, press and then or to adjust the first number of the maintenance pin. Press to continue to the next number.

2. Verify the cable and cable attachments are not damaged. Contact Generac Mobile Products, LLC to order a replacement cable if necessary.
3. Referring to the "Lift / Let Down" decal on the winch, turn handle according to the specified direction to lift. The ratchet MUST make a loud clicking sound while winding the cable.
Lowering the Lights: Referring to the "Lift / Let Down" decal on the winch, turn handle according to the specified direction to lower. No clicking will be heard because the brake system is activated.
Maintenance
The following procedures should be performed at least annually:
1. The gears and bushings of the winch must be kept lubricated. Apply a thin film of grease to the gear teeth, and oil the bushings as needed.
2. The ratchet pawl pivot point must be kept lubricated with a thin oil.
NOTE: Do not get oil or grease on the brake mechanism.

003784
Figure 4-1. Entering Maintenance Pin
Manual Winch: Use, Operation, and Maintenance
Prior to Use · Inspect rope or cable and replace if damaged. · Inspect mounting hardware for correct tightness
and torque if necessary.
· Gears, ratchet pivot point, and shaft bushings must
be kept lubricated with a thin film of oil or grease.
Operation
Raising the Lights: 1. The cable must be securely fastened to the winch drum.

Electric Winch (If Equipped): Use, Operation, and Maintenance
· Keep the winch free of dirt, oil, grease, water, and
other substances.
· Check all mounting bolts and verify they are tight-
ened to the recommended torque values. Replace any damaged fasteners.
· Periodically inspect all connections to verify they
are tight and free of corrosion.
· Inspect the cable for visible damage every time the
winch is operated. Examples of damage are: cuts, knots, crushed or frayed portions, and broken strands. Replace cable immediately if damaged. Failure to replace a damaged cable could result in breakage.
· Regularly inspect the brake for slippage or drift.
This is detected visually when winch is under load. If winch drum continues to turn after controls are released, the brake may need to be replaced.
· Periodically clean and grease the brake assembly.
This will ensure correct performance and extend the life of the winch. If winch seems to labor or get excessively hot during the lowering of loads, the brake will need to be serviced or replaced.
· Inspect motor brushes periodically and replace
when necessary.
NOTE: Only the motor brushes and brake assembly require periodic replacement.

Owner's Manual for MLT6SM/6SK Light Tower

Maintenance

Winch Mechanical Brake
The mechanical brake generates heat when loads are lowered and the wire cable is powered out. Avoid overheating the mechanical brake. Overheating the mechanical brake may result in permanent damage to, or failure of, the brake. Replace any damaged brake components before resuming use of the winch.

Whine or chatter associated with a new mechanical brake is normal and typically disappears with use.
Overheating the mechanical brake may result in permanent damage to, or failure of, the brake. Replace any damaged brake components before resuming use of the winch.

Table 5: Winch Preventative Maintenance Schedule

Maintenance Activity
Inspect fasteners Inspect electrical connections Clean and grease brake assembly Inspect motor brushes Inspect winch and control

After First Operation

Before Each Use

Semi-Annually

Trailer Wheel Bearings
The trailer axles are equipped with a Zerk grease fitting to allow lubrication of the wheel bearings without the need to disassemble the axle hub. Use only a high quality grease made specifically for lubrication of wheel bearings, such as Valvoline W615 or equivalent.
See Figure 4-2. Proceed as follows to lubricate the wheel bearings:

The minimum recommended lubrication is every 12 months or 12,000 miles (19,312 km). More frequent lubrication may be required under extremely dusty or damp operating conditions.
Every six months, or depending on usage, check for play in each bearing by jacking up the trailer, then trying to rock the wheel. If further assistance is required, contact Generac Mobile Products Technical Service at 1-800926-9768.

A C
B

Jack Maintenance
Before each use, inspect each jack foot for damage and remove any mud or debris. The jacks must be clean and in good operating condition to correctly support the unit.

002540
Figure 4-2. Wheel Bearing Cross Section
1. Remove the small rubber plug (A) from the metal end cap (B).
2. Attach a standard grease gun fitting to the Zerk grease fitting (C).
3. Pump grease into the Zerk fitting until fresh grease is visible around the nozzle of the grease gun.
4. Wipe any excess grease from the axle hub with a clean cloth and replace the rubber plug.

Owner's Manual for MLT6SM/6SK Light Tower

Maintenance
This page intentionally left blank.

Owner's Manual for MLT6SM/6SK Light Tower

Section 5: Troubleshooting

Troubleshooting

General Troubleshooting

WARNING
Risk of burns. Allow engine to cool before draining oil or coolant. Failure to do so could result in death or serious injury.
(000139)
Some of the more common problems are listed in the table below. This information is intended to be a check or verification that simple causes can be located and fixed. It does not cover all types of problems. Refer to the OEM engine operator's manual for additional troubleshooting information. Procedures that require in-depth knowledge or skills should be referred to a GMP ASD.

Table 5-1. General Troubleshooting Guide

Problem
Low oil pressure shutdown

Possible Cause Low oil level Oil leaking from engine
Oil pressure switch failure

Low coolant level

Blockage in radiator

High coolant temperature shutdown

Leakage in coolant hoses, engine block, or water pump

Faulty thermostat Water pump failure Incorrect mix/frozen radiator

Low fuel level

Unit cranks, but will not

start

Restricted air filter

PAS engaged

Solution
Verify oil level on dipstick. Add oil, if needed.
Inspect the engine for leaks.
Refer to OEM engine operator's manual to identify corrective action.
Add coolant if needed. Allow engine to cool, then check coolant level in radiator. Restart engine and check coolant temperature. Stop engine immediately if coolant temperature is 210 °F (99 °C) or more.
Inspect radiator shroud and ducting for blockage and remove any foreign matter.
Inspect for visible leaks. Verify tension of water pump serpentine drive belt. Remove load on generator and restart engine. Verify coolant temperature and shut engine down immediately if it starts to overheat. Refer to the OEM engine operator's manual for additional information on engine overheating.
Contact a GMP ASD to replace.
Contact a GMP ASD to replace.
Thaw the radiator with an external heat source and flush the coolant system with the correct coolant mixture.
Check fuel level in tank. Verify fuel pump operation.
Inspect air filter for blockage. Refer to OEM engine operator's manual for additional information.
Verify PAS is off.

If problems persist, contact Generac Mobile Products, LLC at 1-800-926-9768 for assistance.

Owner's Manual for MLT6SM/6SK Light Tower

Troubleshooting

Troubleshooting the Lights
WARNING
Burn hazard. Lamps become extremely hot while in use. Allow 1015 minutes for cooling before handling or lowering mast. Touching a hot lens or fixture can cause severe burns.
(000278)

IMPORTANT NOTE: Only a qualified electrician should troubleshoot or repair electrical problems occurring in this equipment. Contact Generac Mobile Products Technical Service at 1-800-926-9768 for assistance if you have any questions, or if problems persist.

WARNING
Electrocution. Potentially lethal voltages are generated by this equipment. Render the equipment safe before attempting repairs or maintenance. Failure to do so could result in death or serious injury.
(000187)

Problem
Mast lights off, checking outside the control box

Possible Cause Light fixture is too hot Faulty lamp connection Lamp broken
Loose lighting connections Damaged or loose electrical cord Faulty fuel filter

Mast lights off, checking inside the control box

Faulty generator capacitor Loose lighting connections Generator output incorrect
Low transformer output

Mast lights on but the light output is low

Fixture and/or lens is dirty
Lamp worn due to normal use Damaged or loose electrical connections Generator output incorrect Low transformer output

Solution
Allow light to cool 1015 minutes before restarting. Verify lamp is tight in the socket. Inspect for broken arc tube or outer lamp jacket, broken or loose components in lamp envelope, or blackening/deposits inside tube. Inspect the connections inside the mast junction box and each mast light housing/socket. Inspect the mast electrical cord for damage and check the cord connections inside the control box. With engine running and lights off, measure voltage and frequency at the GFCI receptacle. Voltage should indicate 120VAC ± 5%, and frequency should indicate 60.7 Hz ± 5%. If frequency and voltage are both low (<114VAC, <58 Hz), replace the fuel filter. Measure the capacitance of the generator capacitor. If measurement is outside rating (as indicated on the capacitor), replace the capacitor. Inspect the connections inside the control box and inside each ballast box.
Check the incoming voltage to the ballast by checking the available voltage on the GFCI receptacle. Incoming voltage should be 120V ± 5V. If voltage is incorrect, the generator may require service. The voltage from the transformer should read approximately 400VAC as the light "strikes" (induces an arc), then drop and slowly rise back up to stabilize at 240-260VAC. On hard wired models, remove the mast junction box cover and insert the wire probes into the connector blocks for the light and ground. If proper voltage is not achieved, perform capacitor check to determine if the capacitor or coil needs to be replaced. Clean reflective surface inside fixture and both inside and outside surface of glass lens. Use mild soap and water to clean lens. Other chemicals may have an adverse effect on the glass. Replace lamp.
Inspect the mast coil cord, mast junction box, and mast light connections.
Check the incoming voltage to the ballast. Incoming voltage should be 120V ± 5V. If the voltage is incorrect, the generator may require service. The voltage from the transformer should read approximately 400VAC as the light "strikes" (induces an arc), then drop and slowly rise back up to stabilize at 240 260VAC. On hard wired models, remove the mast junction box cover and insert the wire probes into the connector blocks for the light and ground. If proper voltage is not achieved, perform capacitor check to determine if the capacitor or coil needs to be replaced.

Owner's Manual for MLT6SM/6SK Light Tower

Section 6: Wiring Diagrams
Mast Junction Box Wiring and Light Connections

Wiring Diagrams

00768

Owner's Manual for MLT6SM/6SK Light Tower

Wiring Diagrams
AC Wiring Diagram

90500_E_03.09.18

Owner's Manual for MLT6SM/6SK Light Tower

Wiring Diagrams
AC Wiring Diagram--MLT6SK and MLT6SM Power Zone (If Equipped)

Owner's Manual for MLT6SM/6SK Light Tower

90616_B_03.09.18
49

RD BK
90510_D_10.03.14
Owner's Manual for MLT6SM/6SK Light Tower

RD/VI
+

RED/YEL VIO/YEL

RED (PULL) WHT (HOLD) BLU (COM)

SOLENOID

BK/WT

SPLICE

A
#1 FUEL B RELAY

FUSE BL LINK

ALT B+

SPADE

BK/WT

85 BK/WT

30 RD

87 RD/YL
HFF OPT.

86 WT/YL

SPADE

VI/YL VI/YL
SPLICE

VI/YL

SPLICE

#2 A

SPADE
BK/WT
CONTROL LIGHT

BK/WT

VI/YL

SPLICE

ALT B+ ENG. GND

85 GY/BL
A #3 B

30 RD 87 BL

SPADE

BL FUSE LINK

GY/BL GY/BL

GLOW RELAY

ALT B+
GLOW PLUG

6 5 4 3 21 DEUTSCH
7 8 9 10 11 12

RD/WT BK/WT WT/YL RD/VI VI/YL GY/BL 86 BK/YL OR/YL
A B C

BK/VI

RD/GN 12

TO OPTIONAL ELEC MAST

FUEL PUMP
ENG. GND

OVERHEAT WARNING SWITCH (N.O.)

OIL PRESSURE WARNING SWITCH (N.C.)

RD
STARTER

65 4 3 21 DEUTSCH
7 8 9 10 11 12

RD/WT

2 BK/WT

3 RD/YL 4 RD/VI 5 VI/YL 6 GY/BL 7 BK/YL

8 OR/YL

11 BK/VI

12 RD/GN

COM DOWN UP
OPTIONAL MAST
SWITCH

RD
ALTERNATOR

12V BATTERY

Wiring Diagrams
DC Wiring Diagram--MLT6SM
GLW STRT RUN
SPLICE

STARTER SWITCH

A B CD

RD/YL
SPLICE

RD/VI

OR/YL RD
RD/YL

LOAD
COIL

RD BK/WT

LINE
MAIN CIRCUIT BREAKER

SPLICE BK/WT HOUR METER

10 AMP CIRCUIT BREAKER
RD

COM RD/VI
N/C

RD/VI

N/O
-

TIME DELAY RELAY

RD/VI

GY/BL

90646_ORG_03.17.15
51

Owner's Manual for MLT6SM/6SK Light Tower

DSEL401MKII

9 POS PLUG

PLUG LOCATION LOWER

PIN LOCATION

POWER - DC

POWER + DC

FUEL

START

CHARGE ALT

OUTPUT C

OUTPUT D

OUTPUT E

OUTPUT F

11 POS PLUG

PLUG LOCATION LOWER

PIN LOCATION

OUTPUT G

OUTPUT H

OUTPUT I

OUTPUT J

ANALOG IN COM

ANALOG INPUT A

ANALOG INPUT B

ANALOG INPUT C

CAN H

CAN L

CAN SCREEN

4 POS PLUG (GEN VOLTAGE)

PLUG LOCATION UPPER

PIN LOCATION

PHASE L1 VOLTAGE

PHASE L2 VOLTAGE

PHASE L3 VOLTAGE

NEUTRAL

5 POS PLUG (GEN CURRENT)

PLUG LOCATION UPPER

PIN LOCATION

PHASE L1 CURRENT

PHASE L2 CURRENT

PHASE L3 CURRENT

PHASE GND

6 POS PLUG (BINARY INPUTS)

PLUG LOCATION LOWER

PIN LOCATION

INPUT A

INPUT B

INPUT C

INPUT D

INPUT E

INPUT F

SWITCH INPUTS TO GND

BK/WT RD/BK RD/VI

TO GND BAR

RD/BK 10A

RD/YL

TO RELAY 1

BL RD

TO RELAY 2 TO RELAY 3

SEE AC DIAGRAM

TO RELAY 4

RD/WT

VI GY/GN GY/BK VI BK/WT WT/BL WT/YL

GLOW MAST UP MAST DOWN SYSTEM IN AUTO MODE
OIL PRESSURE TEMPERATURE

BK RD SEE AC DIAGRAM WT
TO GND BAR

WT CT-1

WT BK/WT

CT-3

TO GND BAR

TO GND

BAR

TO GND BAR

348 OHM RESISTOR

BL 66234WT SPLICE BK/WT

A #7

TO GND BAR

YL/GN PHOTO SENSOR

UP STOP

DOWN STOP

1 RD/WT 2
3 RD/YL 4 OR 5 RD/VI 6 WT/BL 7 BK/YL
8 9 WT/YL
VI 10
YL/GN 11
BK/WT 12
TO GND BAR

OPTIONAL ELECTRIC WINCH

GY/GN

GY/BK

BK/WT

TO GND BAR

1 RD/WT

3 YL

4 OR

RD/VI

6 WT/BL

7 BK/YL

9 WT/YL

12 BK/WT

A #6

SPLICE

A #5

SPLICE

A #4

NIGHT WATCHMAN PHOTO SENSOR
SEE ELECTRIC
WINCH OPTION DIAGRAM

SPLICE

SOLENOID

RD (PULL)
WT (HOLD) BL (COM)

RD/YL VI/YL

SPLICE SPADE

ALT B+

FUSE LINK BL

BK/WT BK/WT
START A RELAY #1
B

BK/WT

ALT B+ ENG. GND

30 RD

85 BK/WT

RD/VI 86 85
BK/WT

ENG. GND
VI/YL 87
RD 30

SPADE SPADE

FUSE BL FUSE BL

LINK

87 RD/YL

86 YL

87 RD/YL

30 RD 86 BK/YL
87 BL

OPT. HFF

VI/YL

SPLICE

VI/YL

A #2

85 BK/WT

SPLICE VI/YL A #3 B

SPADE SPADE
BK/WT

CONTROL LIGHT

VI/YL

BK/WT

WT/BL RD BK

WT/YL

OVERHEAT WARNING SWITCH (N.O.)

FUEL RELAY

ALT B+
OR

GLOW PLUG

OIL PRESSURE WARNING

GLOW SWITCH (N.C.)

RELAY

FUEL PUMP

ENG. GND

RD
12V BATTERY

ALTERNATOR

STARTER

Wiring Diagrams
DC Wiring Diagram--MLT6SM Power Zone (If Equipped)

Wiring Diagrams
DC Wiring Diagram--MLT6SK

90509_E_6.27.16

Owner's Manual for MLT6SM/6SK Light Tower

90661_A_09.15.15
53

DSEL401MKII
Owner's Manual for MLT6SM/6SK Light Tower

9 POS PLUG

PLUG LOCATION LOWER

PIN LOCATION

POWER - DC

POWER + DC

FUEL

START

CHARGE ALT

OUTPUT C

OUTPUT D

OUTPUT E

OUTPUT F

11 POS PLUG

PLUG LOCATION LOWER

PIN LOCATION

OUTPUT G

OUTPUT H

OUTPUT I

OUTPUT J

ANALOG IN COM

ANALOG INPUT A

ANALOG INPUT B

ANALOG INPUT C

CAN H

CAN L

CAN SCREEN

4 POS PLUG (GEN VOLTAGE)

PLUG LOCATION UPPER

PIN LOCATION

PHASE L1 VOLTAGE

PHASE L2 VOLTAGE

PHASE L3 VOLTAGE

NEUTRAL

5 POS PLUG (GEN CURRENT)

PLUG LOCATION UPPER

PIN LOCATION

PHASE L1 CURRENT

PHASE L2 CURRENT

PHASE L3 CURRENT

PHASE GND

6 POS PLUG (BINARY INPUTS)

PLUG LOCATION LOWER

PIN LOCATION

INPUT A

INPUT B

INPUT C

INPUT D

INPUT E

INPUT F

SWITCH INPUTS TO GND

BK/WT RD/BK RD/VI

TO GND BAR

RD/BK 10A

RD/YL

TO RELAY 1

BL RD

TO RELAY 2 TO RELAY 3

SEE AC DIAGRAM

TO RELAY 4

RD/WT

VI GY/GN GY/BK VI BK/WT WT/BL WT/YL

GLOW MAST UP MAST DOWN SYSTEM IN AUTO MODE
OIL PRESSURE TEMPERATURE

BK RD SEE AC DIAGRAM WT
TO GND BAR

WT CT-1

WT BK/WT

CT-3

TO GND BAR

TO GND

BAR

TO GND BAR

348 OHM

RESISTOR
BL 66234WT SPLICE BK/WT

A #7

TO GND BAR

YL/GN PHOTO SENSOR

UP STOP

DOWN STOP

RD/WT

RD/YL

4 OR

5 RD/VI

6 WT/BL

7 BK/YL

9 WT/YL

YL/GN 11

BK/WT 12

TO GND BAR

OPTIONAL ELECTRIC WINCH

GY/GN

GY/BK

BK/WT

TO GND BAR

1 RD/WT

RD/VI

6 WT/BL

BK/YL

8 9 WT/YL

12 BK/WT

A #5

SPLICE

A #4

SPLICE

A #3

NIGHT WATCHMAN PHOTO SENSOR
SEE ELECTRIC
WINCH OPTION DIAGRAM

SPLICE

ALT B+

FUSE LINK BL

START RELAY

SPADE

ALT B+

30 RD

85 BK/WT

RD/VI 86
85 BK/WT

ENG. GND
VI/YL 87
RD 30

SPADE SPADE

FUSE BL FUSE BL

LINK

30 RD 86 BK/YL
87 BL

87 RD/YL

RD/YL

86 YL

87 RD/YL

OPT. HFF

VI/YL

SPLICE

VI/YL

A #1

85 BK/WT

SPLICE VI/YL A #2 B

SPADE SPADE

BK/WT

CONTROL LIGHT

ENG GND

VI/YL

BK/WT

WT/BL RD BK

WT/YL

OVERHEAT WARNING SWITCH (N.O.)

FUEL RELAY

ALT B+
OR

GLOW PLUG

OIL PRESSURE WARNING

SWITCH (N.C.) GLOW

RELAY

FUEL PUMP

ENG. GND

RD
12V BATTERY

ALTERNATOR

STARTER

Wiring Diagrams
DC Wiring Diagram--MLT6SK Power Zone (If Equipped)
(HOLD) VI/YL
SOLENOID (PULL)

Owner's Manual for MLT6SM/6SK Light Tower

TO OTHER ENGINE COMPONENTS

VI/YL VI/YL
VI/YL

SPLICE B #2 A
HFF OPT.

SPADE

VI/YL

RELAY 65049

CONNECTOR

VI/YL RD

BK/WT

RD/WT
30

BK/WT 85

87a

87
RD/WT

VI/YL

90602_ORG_03.17.15

VI/YL

HOUR METER

15 AMP

VI/YL 5

65211-15

VI/YL

RD
VI/YL
10 AMP CIRCUIT BREAKER

RD/VI COM
N/C

RD/VI

N/O

TIME DELAY RELAY

TO ENG GROUND

RD/WT

TO ENG GROUND

BK/WT

TO ENG ALTERNATOR B

PINK

HEATED FUEL FILTER
ELEMENT

Wiring Diagrams
DC Wiring Option--Heated Fuel Filter MLT6SM

90601_ORG_03.17.15
55

Owner's Manual for MLT6SM/6SK Light Tower

TO OTHER ENGINE COMPONENTS

VI/YL VI/YL
VI/YL

SPLICE B #2 A
HFF OPT.

SPADE

VI/YL

RELAY 65049

CONNECTOR

VI/YL RD

BK/WT

RD/WT
30

BK/WT 85

87a

87
RD/WT

VI/YL

HOUR METER

25 AMP

VI/YL 5

65211-25

VI/YL

RD
VI/YL
10 AMP CIRCUIT BREAKER

RD/VI COM
N/C

RD/VI

N/O

TIME DELAY RELAY

TO ENG GROUND

RD/WT

TO ENG GROUND

BK/WT

TO ENG ALTERNATOR B

A B

HEATED FUEL FILTER

DC Wiring Option--Heated Fuel Filter MLT6SK

Wiring Diagrams

Wiring Diagrams
DC Wiring--Electric Winch Option

TOP SWITCH (DOWN STOP)

COM
+

N/C

N/O

TIME DELAY RELAY

6 7

SWITCH 1

UP DOWN

BN 10 BK/VI 11
12

BK/VI

B BK/VI

BK/WT

BOTTOM SWITCH (UP STOP)

2 WINCH 1

BK BK

CONTACTOR 1

YL BL

BK BK

BK YL

BATTERY

90596_A_07.19.16

Owner's Manual for MLT6SM/6SK Light Tower

Trailer Lights Wiring
SPADE

Owner's Manual for MLT6SM/6SK Light Tower

AMBER L MARKER

BK SPADE

RING - GND

SPADE VI/YL SPADE BK/WT

TO FUEL CKT

BN SPADE BK

AMBER R MARKER

WT SPADE

WT BN

WT
SPLICE

BK SPADE BN

RED L MARKER

WT SPADE WT BK SPADE BN

DCBA

D
WT

CBA
VI/YL BK/WT BN

BN SPLICE BN

WT SPADE WT

SPADE BK

YL SPADE BN

BN
BN SPADE
BN

BN BN
BN

SPADE

SPLICE

BN SPADE BK

RED R MARKER

LICENSE PLATE

SPADE WT

SPADE

WT
PANEL LIGHT
BK

BK/WT

SPADE YL

SPLICE

RED
LEFT TAIL

RD SPADE YL
WT RED LEFT TURN
WT SPADE WT
WT

SPADE

BK SPADE

GN SPADE RD
RED RIGHT TURN
WT SPADE WT

BK
RED RIGHT TAIL

Wiring Diagrams

90520_D_08.27.14
57

Wiring Diagrams
Trailer Lights Wiring--Power Zone (If Equipped)

90615_A_12.15.15

Owner's Manual for MLT6SM/6SK Light Tower

Section 7: Service Log

Service Log

OIL GRADE:______________________________________ BRAND: __________________________________ COOLANT MIXTURE: ______________________________ BRAND: __________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________ __________________________________________________________________________________________

Date

Hours to Service

Oil Level

Coolant Level

Date

Hours to Service

Oil Level

Coolant Level

Owner's Manual for MLT6SM/6SK Light Tower

Service Log
Notes
___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

Owner's Manual for MLT6SM/6SK Light Tower

Service Log
This page intentionally left blank.

Owner's Manual for MLT6SM/6SK Light Tower

Service Log
This page intentionally left blank.

Owner's Manual for MLT6SM/6SK Light Tower

Part No. 17973 Rev. K 03/30/18 ©2018 Generac Mobile Products, LLC All rights reserved. Specifications are subject to change without notice. No reproduction allowed in any form without prior written consent from Generac Mobile Products, LLC.

Generac Mobile Products, LLC 215 Power Drive, Berlin, WI 54923 GeneracMobileProducts.com 800-926-9768 920-361-4442

Acrobat Distiller 15.0 (Windows)