CCD-0009632 Hydraulic Leveling System
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Specifications:
- Product: Hydraulic Leveling Ford F600 (15/15 stroke)
- System Type: Four-valve hydraulic leveling system
- Contact Points: Four jacks
- Power Source: 12V DC electric motor
Product Usage Instructions:
System Information:
This hydraulic leveling system utilizes four contact points
using jacks and a four-valve configuration. A 12V DC electric motor
powers a hydraulic pump to move fluid through hoses, fittings, and
jacks for leveling and stabilizing the coach. The mechanical
components are replaceable.
Safety:
Always ensure proper support for the coach during installation
as per the manufacturer’s recommendations. Lift the coach by the
frame, not the axle or suspension. Do not go under the coach unless
it is adequately supported to prevent accidents. Failure to follow
instructions may result in personal injury or property damage.
Wear appropriate safety gear such as eye protection, hearing
protection, gloves, and a full face shield depending on the task at
hand. Be cautious of moving parts to avoid accidents.
Resources Required:
The system requires four contact points using jacks and a
four-valve system. The 12V DC electric motor powers the hydraulic
pump, moving fluid through hoses, fittings, and jacks for leveling.
Contact Lippert for replacement parts.
Leveling Installation:
Component Description:
- Jacks:
- 4 8K 15 stroke aluminum jacks
- Standard 9-inch diameter footpad on a ball swivel for maximum
surface contact - Powered from a 12V DC motor/pump assembly
- Motor/Pump Assembly:
- 12V DC motor
- Hydraulic fluid reservoir tank
- Control valve manifold
- Solenoid valve
FAQs:
Q: Can I replace the mechanical components of the hydraulic
leveling system myself?
A: Yes, the mechanical components are
replaceable. Contact Lippert for replacement parts and follow the
installation instructions provided.
Q: What should I do if I encounter difficulties during the
leveling installation?
A: If you face challenges during installation,
refer to the user manual for troubleshooting tips or contact
customer support for assistance.
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Hydraulic Leveling Ford F600 (15″/15″ stroke)
OEM INSTALLATION MANUAL
TABLE OF CONTENTS
System Information Safety Resources Required Leveling Installation
Component Description Preparation Labeling Jacks Jack fittings Jack Installation Hydraulic Power Unit 12-pin Wire Harness Hydraulic Hoses Hydraulic Fluid Fill and Purge Controller Installation Leveling Touchpad Installation System Wiring Requirements Level Zero Point Calibration Prior to Operation Selecting a Site System Features Touchpad Diagram Operation Automatic Leveling Descriptive Logic Automatic Leveling Procedure Manual Leveling Procedure Low Voltage Signal Jack Retract Procedures Leveling System Safety Features Automatic Safety Shutoff Drive Away Protection System “Jacks Down” Alarm User Alarm Mode Manual Jack Retract Procedures Troubleshooting Manual Override Jacks Up Verification Leveling Troubleshooting Chart Leveling Touchpad Error Mode Excess Slope Miscellaneous Leveling Wiring Diagram Hydraulic Leveling Plumbing Diagram
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3 3 4 4 4 4 5 6 7 8 10 11 11 12 14 14 15 15 15 16 16 17 17 17 17 17 18 18 19 19 19 19 20 20 20 21 22 23 23 23 24 25
CCD-0009632
System Information
This four-valve hydraulic leveling system features four contact points using jacks (Fig. 2) and a four-valve configuration. A 12V DC electric motor powers a hydraulic pump (Fig. 8), which moves fluid through hoses, fittings, and jacks to level and stabilize the coach. The mechanical components of the hydraulic leveling system are replaceable. For replacement parts, contact Lippert. The system is primed and tested at the factory but is shipped dry to avoid hazardous material restrictions.
For additional support on this product, please visit: https://support.lci1.com/hydraulic-leveling-lcd-4point-4valve
NOTE: Images used in this document are for reference only when assembling, installing and/or operating this product. Actual appearance of provided and/or purchased parts and assemblies may differ.
Safety
Read and understand all instructions before installing or operating this product. Adhere to all safety labels. This manual provides general instructions. Many variables can change the circumstances of the instructions, i.e., the degree of difficulty, operation and ability of the individual performing the instructions. This manual cannot begin to plot out instructions for every possibility, but provides the general instructions, as necessary, for effectively interfacing with the device, product or system. Failure to correctly follow the provided instructions may result in death, serious personal injury, severe product and/or property damage, including voiding of the Lippert limited warranty.
The “WARNING” symbol above is a sign that a procedure has a safety risk involved and may cause death or serious personal injury if not performed safely and within the parameters set forth
in this manual.
During installation make sure that the coach is supported according to the manufacturer’s recommendations. Lift the coach by the frame and never the axle or suspension. Do not go under
the coach unless it is properly supported. Unsupported coaches can fall causing death, serious personal injury or severe product and/or property damage.
Failure to follow instructions provided in this manual may result in death, serious personal injury and/or severe product and property damage, including voiding of the component warranty.
The “CAUTION” symbol above is a sign that a safety risk is involved and may cause personal injury and/or product or property damage if not safely adhered to and within the parameters set forth
in this manual.
Always wear eye protection when performing service, maintenance or installation procedures. Other safety equipment to consider would be hearing protection, gloves and possibly a full face
shield, depending on the nature of the task.
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Moving parts can pinch, crush or cut. Keep clear and use caution. Page 3
CCD-0009632
Resources Required
· Cordless or electric drill or screw gun
· Ratchet and coupler · Open-end/box-end wrenches · Tape measure · Torque wrench · 1 1/8″ wrench · 1 1/16″ wrench
· 3/4″ socket or wrench · 3/8″ socket or wrench · 3/8″ lag screws or 3/8″ bolts and nuts · 1/2″-20 x 1 1/4″ Grade 8 bolts and 1/2″-20 Grade
8 serrated flange nuts · 4 #8 fasteners of sufficient length to secure the
controller · 4 #8 x 1″ wood screws
Leveling Installation
The four-point hydraulic leveling system features four contact points using jacks and a four-valve system. A 12V DC electric motor drives a hydraulic pump that moves fluid through hoses, fittings and jacks to level and stabilize the coach. The mechanical components of the hydraulic leveling system are replaceable. For replacement parts, contact Lippert.
Component Description
1. Jacks A. 4 8K 15″ stroke aluminum jacks (Fig. 2) B. Standard 9-inch diameter (63.5 square inch) footpad on a ball swivel for maximum surface contact on all surfaces. C. Powered from a 12V DC motor/pump assembly.
2. Motor/Pump Assembly A. 12V DC motor B. Hydraulic fluid reservoir tank C. Control valve manifold D. Solenoid valve
3. System Controls A. Controlled electronically from the touchpad. B. Touchpad can be operated in manual mode or fully automatic mode.
4. Fittings and Hoses A. Fittings – High pressure O-Ring Face or J.I.C. – Size 4 B. Hose – 1/4″ I.D., 3000 psi – W.P. Rated
Preparation
Jack bracket style, location and fastening method to chassis will be OEM specific and determined by OEM. 1. Make sure to keep hands and other body parts clear of fluid leaks. Hydraulic system leaks in the
hydraulic leveling system may be under high pressure and can cause serious skin penetrating injuries.
During installation make sure that the coach is supported according to the manufacturer’s recommendations. Lift the coach by the frame and never the axle or suspension. Do not go under
the coach unless it is properly supported. Unsupported coaches can fall causing death, serious personal injury or severe product and/or property damage.
2. Never lift the coach completely off the ground. Lifting the coach so the wheels are not touching the ground will create an unstable and unsafe condition.
3. When fully retracted, the rear jacks must be mounted to achieve a minimum ground clearance equal to the departure angle (Fig. 1) in order to enable maximum leveling correction. Any additional ground clearance added to the jack location will decrease the amount of leveling correction available to the system. A minimum of 8″ is required for aluminum jacks.
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CCD-0009632
Lowest Point on Rear of Coach
Fig. 1
Rear Tire
Ground
Departure Angle
Labeling Jacks
Refer to the Hydraulic Plumbing Diagram for the following steps: 1. Identify the location of the extend and retract ports on each jack (Fig. 3). 2. Verify that the ports (Fig. 3) are clear of any residual machining metal debris. 3. Label each jack Left Front (LF), Right Front (RF), Right Rear (RR) or Left Rear (LR).
Fig. 2
Extend Port
Fig. 3
Retract Port
Top view of the jack without hydraulic fittings.
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Due to the various installation possibilities, this manual will be detailed as if the hydraulic power unit is mounted on the driver side of the coach. Fittings and hose configuration will be OEM specific. Under normal installation procedures the jacks closest to the hydraulic power unit get plumbed first. See the Hydraulic Leveling Plumbing Diagram section.
Jack fittings
1. The Left Front (LF) jack requires two elbow fittings (Fig. 4), one for extend and one for retract. 2. The Right Front (RF) jack requires two elbow fittings, one for extend and one for retract. 3. The Left Rear (LR) jack requires one elbow fitting for the extend port and a T fitting (Fig. 5) for the
retract port. 4. The Right Rear (RR) jack requires one elbow fitting for the extend port and a T fitting for the retract port.
Fig. 6
Fig. 4
Extend Port
90-degree Fitting Fig. 5
Retract Port
T Fitting
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CCD-0009632
Jack Installation
1. Lift the aluminum jack up to the jack bracket and secure with 6 (3 per side) 1/2″-20 x 1 1/4″ Grade 8 bolts and 1/2″-20 Grade 8 serrated flange nuts. Torque bolts to 80-90 ft-lbs.
NOTE: There should be a recommended minimum of 8″ of ground clearance between the bottom of the jack footpad and the ground.
2. Make sure that the approach and departure angles (Fig. 1) are maintained after the jack is mounted to the jack bracket (Fig. 7). Fig. 7
1/2″ – 20 x 1 1/4″
Grade 8 Bolt
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Hydraulic Power Unit
See figures 8-10 for hydraulic power unit feature identification and the following: · Fittings – High Pressure O-Ring Face – Size 4 · Hose – 1/4″ I.D. 3000PSI – W.P. Rated
Install the hydraulic power unit using 3/8″ lag screws or 3/8″ bolts and nuts. The hydraulic power unit connections are not spark-proof, and must be installed in accordance with RVIA Gas Codes.
All electrical wiring harnesses shall be loomed and secured to prevent possible damage and installed in accordance with RVIA electrical standards.
Fig. 8
Motor Solenoid
Valve Manual Override
12V DC Power
Quick Disconnect for Fill and Purge
Quick Disconnect for Fill and Purge
Motor Manual Override
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Leveling Cartridge Valves
Motor
Fig. 9
Motor Solenoid
Manifold
Valve Coil
Leveling Cartridge Valves Breather / Fill Cap
Directional Valve
Pressure Switch
Reservoir
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Reservoir
Fig. 10
Motor
Breather / Fill Cap
Motor Solenoid
Pressure Switch
Hydraulic Manifold
12-pin Wire Harness
See figure 11, the 12-Pin Wire Harness Pin Definitions chart and the Leveling Wiring Diagram for installation.
Fig. 11
11 12 1
2
10 9
3
4
8 7 6
5
Pin # 1 2 3 4 5 6
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Color White Black/White Red Green Yellow Blue
12-Pin Wire Harness Pin Definitions
Function
Pin # Color
Chassis Power
7
Brown
Pump Solenoid
8
Purple
Curbside Rear Valve
9
Gray
Roadside Front Valve
10
— — —
PSI Switch
11
— — —
Roadside Rear Valve
12
— — —
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Function Ground Curbside Front Valve Pump Solenoid Aux Aux Aux
CCD-0009632
Hydraulic Hoses
When installing hydraulic hoses, avoid areas of high heat, e.g. exhaust outlets. Do not use sharp or abrasive materials on or near hydraulic hoses.
Verify that the hydraulic fittings were properly installed on the four jacks and hydraulic power unit.
NOTE: Refer to the Hydraulic Leveling Plumbing Diagram for fitting placements and for steps 1-7.
1. Measure the distance between the Left Front (LF) jack and the hydraulic power unit; this is an extend hose (A).
2. Measure the distance between the Right Front (RF) jack and the hydraulic power unit; this is an extend hose (B).
3. Measure the distance between the Left Front (LF) jack and Left Rear (LR) jack; this is a retract hose (C). 4. Measure the distance between the Right Front (RF) jack and the and the Right Rear (RR) jack; this is a
retract hose (D). 5. Measure the distance between the Left Rear (LR) jack and the hydraulic power unit; this is an extend
hose (E). A. This same distance will be used to make the retract hose (F). 6. Measure the distance between the Right Rear (RR) jack and the hydraulic power unit; this is an extend hose (G). A. This same distance will be used to make the retract hose (H).
NOTE: Make sure hydraulic hose line fittings are compatible with the hydraulic power unit fittings and the jack fittings. Make sure hose fittings are securely crimped onto hose lines.
7. Install all hoses onto their respective jack and hydraulic power unit fittings.
Hydraulic Fluid Fill and Purge
ATF with Dexron III® or Mercon 5® or a blend of both is recommended by Lippert. Type “A” Automatic Transmission Fluid (ATF) is utilized and approved.
Hydraulic system operation in climates at or below 40 degrees F (4 degrees C) may result in the following: · Slow operation during extension/retraction · Incomplete retraction of jacks during Auto Retract procedure For a list of approved fluid specifications go to: TI-188 – Hydraulic Operation Fluid Recommendation.
Before operating the Lippert hydraulic leveling system, make sure the system has been properly purged of air that was introduced into the hydraulic lines during the installation. Refer to TI-118 – Basic Purge Procedure for Hydraulic Pump Units.
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Controller Installation
The Lippert hydraulic leveling system wiring is basically a “plug and play” system. The kit includes wiring harnesses for the entire system. If it does not, contact Lippert to have the proper wiring harness shipped.
NOTE: Refer to the Wiring Diagrams in this manual throughout this section. 1. Install the controller (Fig. 12) using four #8 fasteners of sufficient length to secure the controller. Install
in a location close to the center of the coach (front-to-rear and side-to-side) as space limitations allow and orient according to the arrow (Fig. 12A) on the controller’s label. NOTE: Make sure fasteners do not damage any components above the controller.
Fig. 12
A
2. Connect the Power Unit harness (Fig. 13) to the matching port on the controller. The harness contains a 9-pin end and a 12-pin end.
NOTE: Each connector on the controller is a different shape and has a different number of pins. Each harness (Fig. 13 and 14) has only one way of connecting to the controller. The harnesses are not interchangeable. This prevents installation of the wrong harness in the wrong connector.
Fig. 13
Hydraulic Power Unit to Controller Harness (Non-Water Resistant)
Row 1: 16 GA red, 16 GA blue, 16 GA gray Row 2: 16 GA black/ white, 16 GA yellow, 16 GA purple Row 3: 14 GA white, 16 GA green, 16 GA brown
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Color White Black/White Red Green Yellow Blue Brown Purple Gray
What it Controls Controller power Solenoid extend/retract Right rear jack valve Left front jack valve Pressure switch Left rear jack valve Controller ground Right front jack valve Directional valve
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Row 1: 16 GA brown, 16 GA purple, 16 GA gray Row 2: 16 GA blue, 16 GA yellow, 16 GA green, 16 GA red, 16 GA black/white, 14 GA white
CCD-0009632
3. Connect the 6-pin chassis harness end to the matching port on the controller and the chassis harness 4-pin end to the appropriate chassis body harness.
NOTE: Each connector on the controller is a different shape and has a different number of pins. Each harness (Fig. 13 and 14) has only one way of connecting to the controller. The harnesses are not interchangeable. This prevents installation of the wrong harness in the wrong connector. Fig. 14
Controller to Chassis Harness (Non-Water Resistant)
Color White 16 GA Empty Empty Empty Red 16 GA Empty
Connection Description Parking Brake Ground
+12V Ignition
Color Red 16 GA Empty White 16 GA Empty
Connection Description +12 V Ignition
Parking Brake Ground
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Leveling Touchpad Installation
1. Remove the faceplate of the touchpad from the mounting bezel (Fig. 15). 2. Cut a hole 3 3/8″ W x 2 3/4″ H in the location chosen for installation (Fig. 16). 3. Feed the touchpad harness through the pre-cut hole, and run the wires to the compartment where the
controller is mounted. Plug the harness into the appropriate connector on the controller. 4. Insert the touchpad bezel into the cutout hole, and attach it to the mounting surface with four #8 x 1″
wood screws. Verify that the screws are sufficient length to thread into the mounting surface (Fig. 17). 5. Plug the touchpad harness into the connector on the back of the touchpad faceplate, and snap the
faceplate into the bezel (Fig. 18).
Fig. 15
Fig. 16
Fig. 17
3 3/8″
2 3/4″
Fig. 18
System Wiring Requirements
OEM-supplied circuit protection to be rated as determined by the OEM. All OEM-supplied wiring is to conform to RVIA Standards. 1. Battery power with OEM-supplied breaker conforming to RVIA Standards. 2. Battery ground as per RVIA Standards. 3. Logic power (switched via ignition). 4. Power brake signal (open=park brake disengaged, GND=park brake engaged). 5. Four-wire harness connecting controller to touchpad.
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6. Jacks status input – Switched to GND. A. Jacks not all up switch closed to ground. B. Jacks all up switch open.
7. Connect a ground wire from the 12V battery to the ground post on the hydraulic power unit motor. Ground wires are OEM supplied. 8. Connect the controller harness power wire to the “Ignition On” wire.
A. White – Parking Brake B. Red – Ignition
Level Zero Point Calibration
Before auto leveling features are available, the Level Zero Point must be set. This is the point to which the system will return when an auto leveling cycle is initiated.
To set the zero point (controller module must be fully secured in production-intent location), first run a manual leveling sequence to get the coach to the desired level point. Then activate the Level Zero Point configuration mode by performing the following sequence: 1. Turn touchpad off (Fig. 19K). 2. Press the FRONT button (Fig. 19G) 5 times. 3. Press the REAR button (Fig. 19J) 5 times. 4. A tone will sound and the LCD screen display (Fig. 19E) will read “ZERO POINT CALIBRATION.” 5. Press the ENTER button (Fig. 19C) to set the zero point. 6. The LCD screen will then display “Zero Point Stability Check” and “PLEASE WAIT.” 7. A tone will sound and the LCD screen display will read “ZERO POINT SUCCESSFUL.” 8. The touchpad will then turn off.
Prior to Operation
Selecting a Site
When the coach is parked on an excessive slope the leveling requirements may exceed the jack lift stroke capability. If the coach is parked on an excessive slope, the coach should be moved to a more level surface before the leveling system is deployed. EXCESS ANGLE will appear on the LCD screen if the coach is 3.5 to 5 degrees out of level front-to-rear or side-to-side. See Touchpad Error Codes chart in Troubleshooting section. The leveling system MUST be operated under the following conditions: 1. The coach is parked on a reasonably level surface. 2. The coach “PARKING BRAKE” is engaged. 3. The coach transmission should be in the neutral or park position. 4. Be sure all persons, pets and property are clear of the coach while Leveling system is in operation. 5. Persons inside of coach need to remain still during leveling operation. 6. Clear all jack landing locations of debris and obstructions. Locations should also be free of depressions. 7. When parking the coach on extremely soft surfaces, utilize load distribution pads under each jack. 8. Make sure hands and other body parts are clear of fluid leaks. Oil leaks in the Leveling system may be
under high pressure and can cause serious skin penetrating injuries. 9. Never lift the coach completely off the ground. Lifting the coach so the wheels are not touching the
ground will create an unstable and unsafe condition.
Never lift all wheels off the ground. Lifting all wheels off the ground creates an unsafe condition which may result in serious personal injury or death. Make sure coach is supported in accordance
with manufacturer’s recommendations.
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After starting the automatic leveling cycle it is very important there is no movement inside the coach until the coach is level and the green LED light illuminates in the center of the touchpad. Failure to
remain still during the leveling cycle could have an effect on the performance of the leveling system.
System Features
· Automatic extension of jacks from full retract position (with automatic ground detection). · Automatic leveling of jacks. · Manual leveling of jacks. · Automatic retraction of jacks (with automatic full retract detection). · Jacks Up verification (jacks not retracted and park brake disengaged). · Automatic jack error detection and error mode. · Configurations mode for Zero Point. · Remote operation.
Touchpad Diagram
Fig. 19
A
E
K
B
G
D
C
H
F
I J
Callout A B C
D
E F G
H
I
J K
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Description Up Arrow – Scrolls up through the menu on LCD. Down Arrow – Scrolls down through the menu on LCD. ENTER – Activates modes and procedures indicated on LCD. RETRACT – Places leveling system into retract mode.
Press and hold for several seconds to activate Auto Retract Function. LCD Display – Displays procedures and results. AUTO LEVEL – Places leveling system into auto level mode. FRONT – Activates both front jacks in manual mode. LEFT – Left (Driver Side) Activates both Front and Rear Jacks together in
Manual Mode RIGHT – Right (Passenger Side) Activates Both Front and Rear Jacks together
in Manual Mode REAR – Activates both rear jacks in manual mode. Power Button – Turns leveling system on and off.
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Operation
Automatic Leveling Descriptive Logic
Grounding: Steps 1-3 describe the process of how the AUTO LEVEL LOGIC extends the jacks to the ground. 1. Depending on which end of the coach is lowest to the ground, the level sensor will activate the jacks,
one at a time on the lowest end first, either front or rear. A. Ground lowest side jack first e.g., front passenger side (curbside). B. Ground remaining side jack next i.e., front driver side (roadside). 2. Together, both jacks will lift lowest end until level i.e., front of coach will lift briefly until the coach is level. 3. The system will then ground remaining jacks, one at a time e.g., rear jacks. A. Ground lowest side jack first e.g., rear passenger side. B. Ground remaining side jack next e.g., rear driver side. Leveling: Steps 4-6 describe the process of how the AUTO LEVEL LOGIC levels the coach after the jacks have been grounded. This process may repeat several times until the coach is level. 4. Front-to-rear 5. Side-to-side 6. Individual
NOTE: Minor adjustments will be made throughout the leveling process to limit or prevent frame twisting.
NOTE: After starting the automatic leveling cycle it is very important that there is no movement within the coach until the coach is level and the touchpad LCD display indicates “Auto Level – Success!”. Failure to remain still during the leveling cycle may have a negative effect on the performance of the leveling system.
Automatic Leveling Procedure
Coach must be running for Leveling system to operate. 1. Press the ON/OFF (power) button (Fig. 19K) on the touchpad to turn the leveling system on.
The leveling system is now operational and the electronic level lights will activate. 2. Check to see that the Control Pad ENGAGE PARK BRAKE is engaged. 3. Press the AUTO LEVEL (Fig. 19F) button to begin the automatic leveling cycle. 4. Once system is finished Leveling, turn touch pad off or it will shut itself off after a brief period.
Low Voltage Signal
1. The vehicle requires 12.7V DC to operate in the AUTO mode. A. If the voltage is too low, the touchpad’s LCD screen (Fig. 19E) will display “LOW VOLTAGE.” B. If voltage drops below 12.7V DC, the leveling system will only operate in manual mode and continue to display “LOW VOLTAGE.”
2. If voltage drops below 9.5V DC during automatic or manual operation “LOW VOLTAGE” will appear in the LCD screen and the leveling system will stop operating.
Manual Leveling Procedure
When leveling the coach, the coach should be leveled front-to-rear first, then leveled left-to-right.
NOTE: The coach requires 12.7V DC to begin the auto leveling function. If voltage at the hydraulic power unit is below 12.7V DC, run the engine.
1. Press the ON/OFF (power) button (Fig. 19K) on the touchpad to turn the leveling system on.
The leveling system is now operational and the electronic level lights will activate.
2. Press the Down Arrow button (Fig. 19B) to display “MANUAL LEVEL” on the LCD screen (Fig. 19E).
Press the ENTER button (Fig. 19C) to set.
3. Press the FRONT button (Fig. 19G) until the front jacks contact the ground and lift the front of the
coach 1-2 inches.
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4. Press the REAR button (Fig. 19J) until the rear jacks contact the ground and lift the rear of the coach. Keep the button depressed until the level indicator displays “LEVEL.”
5. Press the LEFT or RIGHT button (Fig. 18H or 18I). A. If the level indicator is towards the left (roadside) of the coach, press the LEFT button (Fig. 19H). B. If the level indicator is towards the right (curbside) of the coach, press the RIGHT button (Fig. 19I). C. Keep either button (RIGHT or LEFT) depressed until the level indicator displays “LEVEL.”
NOTE: The right and left jacks are used to level the coach side-to-side. Pressing the LEFT button on the touchpad will extend both left jacks. Pressing the RIGHT button on the touchpad will extend both right jacks. Jacks always work in pairs; both front jacks, both right side (curbside) jacks, etc.
6. Repeat steps 2-5 if needed. 7. Press the ON/OFF (power) button (Fig. 19K) to turn the leveling system off. 8. Visually inspect all jacks to ensure all footpads are touching the ground. For example, if one of the rear
jack footpads is not touching the ground, press the corresponding LEFT or RIGHT button to lower the non-compliant jack to the ground.
Jack Retract Procedures
1. Press the ON/OFF (power) button (Fig. 19K) to turn the leveling system on. The LCD screen (Fig. 19E) will display “JACKS DOWN.”
2. Press the Down Arrow button (Fig. 19B) to display “AUTO RETRACT” on the LCD screen. 3. Press the ENTER button (Fig. 19C) to begin automatically retracting the jacks.
NOTE: To stop the jacks from retracting, turn the leveling system off, then back on again by pressing the ON/OFF (power) button twice. Do steps 1-5 of the Manual Leveling Procedure section to manually level the coach. Press the ENTER button to acknowledge.
4. When the “JACKS DOWN” message on the LCD display goes off, press the ON/OFF (power) button to turn the leveling system off. A. Do a visual inspection around the coach to verify all jacks are fully retracted. B. If all jacks are fully retracted, the coach is ready for travel.
5. To retract jacks while in MANUAL mode: A. Press the RETRACT button (Fig. 19D) until it lights. B. By pressing any of the jack buttons (Fig. 19G-J), the jacks will retract in pairs i.e., pressing the FRONT button makes both front jacks retract in unison.
6. An “auto retract” sequence can also be performed by pressing and holding the RETRACT button (Fig. 19D) for one second.
NOTE: In cold weather operation, always check to make sure all jacks, slide rooms and steps are fully retracted before traveling.
Leveling System Safety Features
1. The leveling system will automatically shut down after four minutes of no operation. 2. Auto leveling cycle cannot be started until all jacks are fully retracted.
A. Make sure jacks are retracted before attempting to auto level. B. The leveling system will automatically perform a full retract of all jacks if jacks are down when
there is a request for an auto cycle. 3. The leveling system will refuse any operation when a low voltage condition is present. 4. The leveling system will automatically sound an alarm and retract all jacks if the PARK BRAKE is
disengaged and jacks are not retracted with any change in sensor readings.
NOTE: When the leveling system is in alarm mode, only the “retract all jacks” feature is available.
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Automatic Safety Shutoff
The touchpad will automatically turn off after four minutes of inactivity. To reset the leveling system, the coach ignition must be turned off, then back on and the ON/OFF (power) button (Fig. 18K) must be pressed.
Drive Away Protection System
If the coach’s ignition is in the “RUN” position, jacks are down and the operator releases the parking brake, all indicator lights will flash and the alarm beeper will activate. The system will then automatically retract the jacks until the jacks are fully retracted or the operator resets the parking brake.
The hydraulic power unit will also operate to keep the jacks retracted in the event the leveling system loses pressure as the coach is being driven.
“Jacks Down” Alarm
The leveling system is designed to sound an alarm and illuminate the touchpad in the event of two possible scenarios: 1. A retract hose leak. 2. The pressure holding the jacks in the retracted position falls to approximately 1500 psi, which activates
the alarm. If the alarm sounds and the touchpad illuminates and flashes while driving the vehicle: A. Immediately find an area to safely pull the vehicle off of the roadway. B. Set the PARKING BRAKE. C. Inspect all jacks, hoses and valves for leaks. D. If no leaks are observed:
I. Turn leveling system touchpad on. II. Press RETRACT button (Fig. 19D). III. Inspect jacks. If jacks are retracted and no leaks are observed, vehicle can be driven. E. If system is leaking or alarm does not subside after applying step 2, disconnect wires from pressure switch and proceed immediately to a service center.
NOTE: The pressure switch is a blue and gold colored valve located on the hydraulic power unit manifold identified by the spark proof style connector with yellow and black wires. See figure 9.
NOTE: For prolonged travel to the service center, periodically stop and check the disposition of the leveling jacks to make sure they are not extending.
User Alarm Mode
If the alarm system detects that the park brake has been disengaged while at least one jack is not fully retracted and the sensor value changes in any axis more than the predefined amount, the touchpad will signal this error to the user.
When in alarm mode: 1. All LEDs will flash. 2. The buzzer alarm will beep. 3. The status LEDs will show the current leveling system status. 4. The leveling system will begin retracting all jacks.
NOTE: No other leveling system features will be available when in alarm mode.
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CCD-0009632
Manual Jack Retract Procedures
1. To retract in the MANUAL mode, press RETRACT (Fig. 19D) until the green indicator light comes on. 2. Pressing FRONT (Fig. 19G) or REAR (Fig. 19J) will operate the respective jacks in pairs. 3. Pressing RIGHT (Fig. 19I) will operate the right rear jack. 4. Pressing LEFT (Fig. 19H) will operate the left rear jack.
Troubleshooting
Make sure all jacks are fully retracted before travel.
Manual Override
In the event that the leveling jacks do not retract, the system can be manually overridden.
Resources Required · Cordless or electric drill · 1/2″ socket · 5/32″ or 5/64″hex wrench
NOTE: Cartridge valves should be opened prior to operating with any auxiliary power device. The system can be operated in conjunction with auxiliary power devices, like cordless or power drills. In the event of electrical or system failure, the manual method of retracting the leveling jacks can be used.
Do not over-tighten override set screws as this can damage the valves.
1. Use a 5/32″ hex key wrench to turn the manual override clockwise (Fig. 20) on all of the cartridge valves
to open the valves. NOTE: If a 5/32″ hex wrench will not fit in the end of the valve, use a 5/64″ hex wrench. 2. Disconnect or shield power cables on the motor. 3. Remove plastic cap (Fig. 21A) from motor coupler. 4. Unplug the wire harness from the directional valve (Fig. 21B).
Fig. 20
Fig. 21
Rev: 05.14.25
Clockwise for Manual Override
B Page 20
A
CCD-0009632
5. Using a 1/2″ socket and auxiliary drive device, e.g. cordless or power drill, insert 1/2″ socket onto
coupler (Fig. 22A). 6. Run drill in reverse, or counterclockwise direction, to simultaneously retract all leveling jacks. 7. After all leveling jacks have been retracted, turn cartridge valve manual overrides counterclockwise
(Fig. 23). 8. Reinsert previously removed protective plastic motor coupler cap (Fig. 21A). 9. Reattach previously unplugged wire harness to directional valve (Fig. 21B).
Fig. 22
Fig. 23
A
Counterclockwise for Normal Operation
Jacks Up Verification
If the coach’s ignition is in the “RUN” position, the parking brake is released and the vehicle is in motion, the leveling system may activate the hydraulic power unit to ensure retract pressure is high enough to keep jacks fully retracted. The LCD screen will say “JACKS UP VERIFICATION” until the retract pressure returns to normal level. The touchpad will shut off. No beeping will occur and the “JACKS DOWN” dash light will not illuminate.
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Page 21
CCD-0009632
Leveling Troubleshooting Chart
For leveling system concerns, refer to the Leveling System Troubleshooting Chart.
Leveling System Troubleshooting Chart
What Is Happening?
Why?
What Should Be Done?
Coach ignition not in RUN position. Turn ignition to RUN position.
System will not turn on Parking brake not set. and ON/OFF indicator Controls have been on for more light does not illuminate. than four minutes and have
timed out.
Set parking brake. Turn ignition off and then back on.
Touch pad turns on but turns off when jack directional buttons are pressed or touch pad displays “low voltage”.
Low voltage on battery.
Start coach to charge battery.
Touch pad turns on,
coach will not auto-level, “Ready Jacks: Down” displayed, jacks are
Faulty pressure switch or low pressure in system.
retracted.
Press RETRACT ALL JACKS button on touchpad. If JACKS DOWN light remains on, call Lippert Customer Service.
Little or no fluid in reservoir.
Fill reservoir with recommended ATF.
Jacks will not extend to ground, pump is running.
Jack valve is inoperative.
Electronic signal is lost between controller and jack valves.
Clean, repair or replace.
Trace wires for voltage drop or loss of signal. Repair or replace necessary wires or replace controller.
Hose damaged or disconnected. Replace with new hose or reconnect hose.
Any one or two jacks will Return valve inoperative.
not retract.
Electronic signal is lost between
controller and solenoid.
Replace inoperative return valve.
Test for voltage drop between controller and jack valve. Repair bad wiring or replace defective controller or valve.
“READY – Jacks: Up” does Insufficient pressure in system. Contact Lippert Customer Service.
not display when all jacks are retracted.
Retract pressure switch inoperable. Check connection or replace.
Alarm sounds and lights start flashing while traveling; jacks are fully retracted.
Loss of pressure in leveling system. Retract pressure switch inoperable.
Contact Lippert Customer Service. Check connection or replace.
Jack bleeds down after being extended.
Valve Manual Override open.
Close override.
Touch pad powers up; screen displays “low voltage”.
Engine not running.
Start coach engine.
No power to touchpad.
Tripped circuit breaker. Ignition not on.
Reset breaker. Turn on.
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CCD-0009632
Leveling Touchpad Error Mode
1. If an error occurs before or during operation, the error will be displayed in the touchpad’s LCD screen (Fig. 19E) and an alarm will sound. To reset common ERROR displays, press ENTER (Fig. 19C).
NOTE: To reset “Return for Service” errors, press ENTER (Fig. 19C) and RETRACT (Fig. 19D) simultaneously. 2. All normal functions will be disabled while the system is in Error Mode.
LCD Display Excess Angle
Leveling Touchpad Error Code Chart
What is Happening?
What Should Be Done?
Coach not parked on level ground.
Move coach to level ground prior to starting auto level sequence.
Zero Point incorrectly calibrated. Recalibrate Zero Point.
Excessive Angle Out of Stroke Low Voltage
Occurs only in manual mode when the angle of the coach is too severe.
Jack has insufficient length to complete the leveling procedure.
Battery voltage dropped below 9.5V DC during operation.
Use the manual functions to return coach to a more level condition.
Check the disposition of the jack.
Turn engine on, check battery voltage under load.
Function Aborted
A button was pressed on touchpad Hit enter to acknowledge. Restart
during Auto Level operation.
procedure.
Unable to Finish Leveling
Excessive movement inside coach Discontinue movement inside coach
during auto-level sequence.
during auto level sequence.
Engage Park Brake
Parking brake not set prior to starting auto level sequence.
Set parking brake prior to starting auto level sequence.
Comm Error Check Wiring NOTE: Screen will not back light.
Wiring connections loose or faulty between touchpad and controller.
Check connections, replace communication harness if necessary.
Retract Timeout Return Levelers for Service
Pressure switch did not sense retract pressure and pump timed out.
Return levelers for service.
Leaking hose or fitting.
Check for leaks; repair if necessary. Press ENTER and RETRACT to clear error.
Excess Slope
1. The control will not operate at extreme slopes, i.e. 3.5 to 5 degrees front and rear and 3.5 to 5 degrees side-to-side.
2. If the coach’s display indicates “Excess Angle” or “Out of Stroke ” during an auto-level cycle, move the coach to a level spot.
Miscellaneous
System will refuse any operation when a low voltage condition is present.
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CCD-0009632
Leveling Wiring Diagram
Touchpad
Main Power Harness Controller
50-100 amp Circuit Protection
per RVIA Standards
and OEM Requirements
Battery Touchpad Harness
Hydraulic Power Unit
Hydraulic power unit Harness
Interconnect Harness
Left Front Jack
Directional Valve
Pressure Switch
Right Front Jack
Rev: 05.14.25
Manifold
Coil
Page 24
Left Rear Jack
Right Rear Jack
CCD-0009632
Hydraulic Leveling Plumbing Diagram
LF
RF
15″ Stroke Jack
Orange Hydraulic lines = Retract
Black Hydraulic lines = Extend
A
B
C
D
LR
RR
15″ Stroke Jack
E
F
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H G
Hydraulic Power Unit
Page 25
CCD-0009632
The contents of this manual are proprietary and copyright protected by Lippert. Lippert prohibits the copying or dissemination of portions of this manual unless prior written consent from an authorized Lippert representative has been provided. Any unauthorized use shall void any applicable warranty. The information contained in this manual is subject to change without notice and at the sole discretion of Lippert. Revised editions are available
for free download from lippert.com.
Please recycle all obsolete materials.
For all concerns or questions, please contact Lippert Ph: 432-LIPPERT (432-547-7378) | Web: lippert.com | Email: customerservice@lci1.com
Documents / Resources
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LIPPERT CCD-0009632 Hydraulic Leveling System [pdf] Instruction Manual CCD-0009632, CCD-0009632 Hydraulic Leveling System, CCD-0009632, Hydraulic Leveling System, Leveling System, System |