Nilfisk SC100 - SCRUBTEC 130 Service Manual
This service manual provides detailed information for the Nilfisk SC100 and Nilfisk Alto Scrubtec 130 scrubber-dryer machines. It is intended for service technicians to assist with maintenance, repairs, and troubleshooting to ensure optimal cleaning performance and longevity of the machines.
General Information
The SC100 and Scrubtec 130 are commercial machines designed for cleaning smooth and compact floors. They can also clean carpets with specific accessories. The machines are powered by an electrical mains connection and feature a single cylindrical brush, a controlled solution flow dosing system, and front and rear squeegees for drying the floor by vacuuming dirty water.
Safety Precautions
General Warnings:
- Always read and follow safety instructions carefully.
- Disconnect the machine from the electrical mains before performing any maintenance, repair, or cleaning.
- Do not wear jewelry when working near electrical components.
- Avoid operating the machine near toxic, dangerous, flammable, or explosive powders, liquids, or vapors.
- This machine is not suitable for collecting dangerous powders.
- Use only as instructed in this manual and with Nilfisk-approved accessories.
- Ensure all components are properly assembled before use.
- Take precautions to prevent hair, jewelry, and loose clothing from getting caught in moving parts.
- Do not use the machine on slopes exceeding the specified gradient (2%).
- Avoid particularly dusty areas.
- Ensure adequate lighting when operating the machine.
- Do not bump into objects, especially where there is a risk of falling objects.
- Operating temperature range: 0°C to +40°C.
- Storage temperature range: 0°C to +40°C.
- Humidity range: 30% to 95%.
- Follow detergent instructions and wear protective gear when handling cleaning detergents.
- Do not use the machine as a means of transport.
- Do not allow the brush to operate while the machine is stationary.
- Use a powder fire extinguisher in case of fire.
- Do not tamper with safety guards and follow maintenance instructions.
- Keep openings clear of dust, hair, and other foreign material.
- Do not remove or modify machine plates.
- This machine is not intended for use on public roads.
- Take care during transportation in freezing temperatures to prevent water in the tanks or hoses from freezing and damaging the machine.
- Use only supplied or specified brushes and pads.
- If the machine malfunctions, is damaged, leaks water or foam, or has been exposed to adverse weather or water, turn it off immediately and contact an authorized service center.
- Use only original spare parts.
- Do not wash the machine with high-pressure water jets or corrosive substances.
- Dispose of the machine properly, as it contains potentially harmful materials.
Symbols Used in this Manual:
- DANGER! Indicates a dangerous situation with a risk of death for the operator.
- Warning! Indicates a dangerous situation with a risk of death for the operator.
- Caution! Indicates a potential risk of injury for people.
- Note: Indicates a remark related to important or useful functions.
Visible Symbols on the Machine:
- A warning symbol with "2%" indicates: Do not use the machine on slopes with a gradient exceeding the specifications.
Other Reference Manuals:
| Model | Product Code | Instructions for Use | Spare Parts List |
|---|---|---|---|
| Nilfisk SC100 | 107408100 107408102 107408103 | 107412885 | |
| Nilfisk Alto Scrubtec 130 | 107408140 107408150 107408152 | 107412886 |
These manuals are available from local Nilfisk retailers, the Nilfisk website (www.nilfisk.com), and the Nilfisk-Alto website (www.nilfisk-alto.com).
SC100 Nomenclature
The SC100 features the following components:
- Handle
- Main switch
- Start/stop switch
- Solution switch, level 1
- Solution switch, level 2
- Empty solution tank warning LED
- Stop position unlocking pedal
- Squeegee bar lifting/lowering pedal
- Tank coupling and transport handle
- Solution tank
- Solution tank filler plug
- Solution filter
- Recovery tank
- Cleaning deck
- Brush engagement/disengagement lever
- Brush
- Squeegee bars
- Inspection lid
- Recovery water vacuum hose
- Air filter cover
- Recovery tank drain plug
- Vacuum inlet plug
- Brush/vacuum motor compartment
- Rear wheels
- Transport handle housing
- Power supply cable holder
- Power supply cable with connector
- Serial number plate/technical data/conformity certification
Scrubtec 130 Nomenclature
The Scrubtec 130 features the following components:
- Handle
- Start/stop switch
- Solution switch
- Power supply cable with connector
- Serial number plate/technical data/conformity certification
- Stop position unlocking pedal
- Squeegee bar lifting/lowering pedal
- Tank coupling and transport handle
- Solution tank
- Solution tank filler plug
- Solution filter
- Recovery tank
- Cleaning deck
- Brush engagement/disengagement lever
- Brush
- Squeegee bars
- Inspection lid
- Recovery water vacuum hose
- Air filter cover
- Recovery tank drain plug
- Vacuum inlet plug
- Brush/Vacuum motor compartment
- Rear wheels
- Transport handle housing
- Power supply cable holder
Technical Data
| Parameter | SC100 - Scrubtec 130 |
|---|---|
| Solution tank capacity | 3 liters |
| Recovery tank capacity | 4 liters |
| Machine size (length x width x height) | 400 x 360 x 1,150 mm |
| Cleaning width | 310 mm |
| Brush diameter | 66 mm |
| Min/max solution flow | 0.2/0.6 L/min |
| Sound pressure level at workstation (ISO 11201, ISO 4871, EN 60335-2-72) (LPA) | 72 dB(A) ± 2 dB(A) |
| Machine sound power level (ISO 3744, ISO 4871, EN 60335-2-72) (LwA) | 83 dB(A) |
| Vibration level at the operator's arms (ISO 5349-1, EN 60335-2-72) | < 2.5 m/s² |
| Maximum gradient when working | 2% |
| IP protection class | X4 |
| Protection class (electric) | II |
| Vacuum system capacity | 360 mm H₂O |
| Brush rotation speed | 2,100 rpm |
| Total absorbed power | 0.8 kW |
| Electrical system voltage | 220-240 V - 50-60 Hz |
| Weight with empty tanks | 12 kg |
| Gross vehicle weight (GVW) | 15 kg |
| Shipping weight | 16 kg |
Maintenance
Regular and correct maintenance ensures the machine's lifespan and operating safety. The following chart outlines the scheduled maintenance. Intervals may vary based on working conditions.
Warning! Maintenance procedures must be performed with the machine switched off and the power supply cable disconnected from the electrical mains. Refer to the Safety chapter for detailed instructions.
Scheduled Maintenance Table
| Procedure | Daily, after using the machine | Weekly | Every six months |
|---|---|---|---|
| Squeegee bar cleaning | |||
| Brush Cleaning | |||
| Recovery Tank Cleaning | |||
| Brush compartment and inspection compartment cleaning | |||
| Power supply cable check | |||
| Dosing bridge cleaning | |||
| Squeegee bar check | |||
| Detergent filter cleaning | |||
| Air filter cleaning | |||
| Solution tank cleaning | |||
| Squeegee bar replacement |
Troubleshooting
| Trouble | Possible Causes | Remedy |
|---|---|---|
| The machine does not work. | The power supply cable or the relevant plug is broken. | Replace the cable. |
| The main switch is broken. | Replace the switch. | |
| The switch panel is broken. | Replace the switch panel. | |
| The function electronic board is broken. | Replace the electronic board. | |
| The parking position microswitch is broken. | Replace the microswitch. | |
| The motor is broken. | Replace the motor. | |
| The driving belts are broken. | Replace the belts. | |
| The dirty water vacuuming is insufficient. | The recovery tank is full. | Empty the tank. |
| The squeegee bars are dirty or the blades are worn or damaged. | Clean and check the squeegee bars. | |
| The inspection compartment is dirty. | Clean the compartment. | |
| The vacuum hose is disconnected or dirty. | Connect or clean the hose. | |
| The air filter is dirty. | Clean the filter. | |
| The solution flow to the brush is insufficient. | The solution filter is dirty. | Clean the filter. |
| The dosing bridge are clogged. | Clean the dosing bridge. | |
| The solenoid valve is broken. | Replace the solenoid valve. | |
| The squeegees leave marks on the floor. | There is debris under the squeegee blades. | Remove the debris. |
| The squeegee blades are worn, chipped or torn. | Replace the blades. |
Electrical System
General Wiring Diagram
SC100
The SC100 wiring diagram illustrates the connections for the parking position microswitch, solution tank level reedswitch, user interface, solenoid, motor, and power supply.
Scrubtec 130
The Scrubtec 130 wiring diagram shows the connections for the power supply, main switch, pump switch, motor, and solution pump.
Function Board Connections
The function board has several connection points:
- (A) Power supply connection (blue cable).
- (B) Split power supply connection (brown cable) - Main motor (black cable).
- (C) Main motor connection (black cable).
- (D) Dosing pump connection (4-way connector - 2 cables).
- (E) Switch panel connection (12-way connector - 9 cables).
- (F) Solution level connection (3-way connector - 2 cables).
- (G) Parking position microswitch connection (3-way connector - 2 cables).
Motor Disassembly/Assembly
Disassembly Steps:
- Set the machine to the stop position.
- Disconnect the power supply cable.
- Remove the brush.
- Remove the two squeegee bars.
- Remove the function electronic board (refer to the relevant paragraph).
- Remove the sensor receiving the solution level (refer to the relevant paragraph).
- Disconnect the vacuum hose (A) from the motor assembly housing (B).
- On the lower side of the deck, remove the screws (C).
- Turn the machine to its original position (D).
- Press the unlock pedal (E) and fully lower the frame (F).
- Using a screwdriver, slightly separate the trigger lever (G) from the track (H), then lift the front side (I) of the cover (J).
- Remove the cover (J) by disengaging its fasteners (K).
- On the lower side of the deck, remove the screws (L).
- Turn the machine to its original position.
- On the left side of the machine, lift the half clamp (M) from the front side (N) and disengage the inner fastener (P), then remove it by disengaging the rear fastener (Q).
- On the right side of the machine, remove the pedal (R) by moving it in the direction shown by the arrow, disengaging its housing (S) from the pin (T) and its housings (U) from the pins (V) of the pedal mechanism (W).
- Remove the pedal mechanism (W) by disengaging its spring (X) from the pin (T) and its housings from the fastener (Y) on the deck.
- Disconnect the belt (Z) from the motor ring gear (AA).
- Disconnect the solution hose (AB) from the fitting (AC).
- Release and remove the nozzlehead (AD).
- On both sides of the machine, remove the screws (AE), then remove the columns (AF) from the motor assembly (AG).
- On the right side of the motor assembly, remove the screws (AH) and move the case (AI).
- Loosen the fastening screw (AM) and remove the parking position microswitch (AL) with the wiring harness.
- Disconnect the hose (AP) and the hose (AQ), then remove the dosing pump (AN). Retrieve the gaskets (AR). When reassembling, turn the dosing pump (AN) in the direction shown by the arrow (AS).
- Remove the screws (AT) and remove the case (AU).
- Remove the screw (AV) and remove the case (AW). Retrieve the inner gasket (AX).
- Remove the fastening screws (AY) of the case (AZ). Remove the screw (BA) and remove the grille (BB).
- Remove the motor assembly (BC) and the case (AZ).
Assembly Steps:
- Assemble the components in the reverse order of disassembly.
- When reinstalling the motor assembly (BD) on the machine deck (BE), place both side bushings (BF) by engaging their notches (BG) in the relevant housings (BH).
- When reassembling, turn the dosing pump (AN) in the direction shown by the arrow (AS).
Function Electronic Board Disassembly/Assembly
Disassembly:
- Set the machine to stop position.
- Ensure the power supply cable is disconnected.
- Remove the tank assembly.
- Remove the screws (A).
- Lift and move aside the cover (B).
- Disconnect the electrical connections (D) from the function electronic board (C).
- Loosen the two screws (E) and remove the function electronic board (C) by disengaging it from the fasteners on the lower sides (F).
Warning! When the function electronic board (C) is reused or replaced, handle it with care to prevent damage to its circuits and components.
Assembly:
- Assemble the components in the reverse order of disassembly.
Switch Panel Disassembly/Assembly
Disassembly:
- Set the machine to stop position.
- Ensure the power supply cable is disconnected.
- Remove the screws (A) fastening the switch panel (B).
- Remove the switch panel (B) by sliding it in the direction of the arrow (C).
- Disconnect the electrical connector (D) and retrieve the switch panel (B).
Warning! When the switch panel (B) is reused or replaced, handle it with care to prevent damage to its circuits and components.
Assembly:
- Assemble the components in the reverse order of disassembly.
Parking Position Microswitch Disassembly/Assembly
The steps for disassembling and assembling the parking position microswitch are identical to the motor disassembly/assembly procedure.
Solution System
Maintenance and Adjustments
Cylindrical brush, brush compartment and dosing bridge cleaning
- Lower the machine to reach the lower side of the cleaning deck.
- Turn the lever (A) counter-clockwise and remove the brush.
- Clean and wash the cylindrical brush with water and detergent.
- Check the brush bristles for integrity and wear; replace if necessary.
- Carefully clean the brush compartment (B).
- Disassemble the dosing bridge (C), clean with water and detergent, rinse, and reassemble.
- Install the cylindrical brush on the drive hub (D) and engage it by turning the lever (E) clockwise.
Solution filter cleaning
- Remove the tank assembly from the machine body.
- Remove the two rubber gaskets (A and B), then remove the filter strainer (C).
- Clean and install them on the support (D).
Removal and Installation
Disassembly/assembly of the solution level sensor (inside the tank)
Disassembly:
- Set the machine to stop position.
- Ensure the power supply cable is disconnected.
- Remove and drain the tank assembly.
- On the lower side of the tank assembly, remove the screws (A) fastening the cover (B).
- Carefully remove the cover (B) with the level sensor (C).
Assembly:
- Assemble the components in the reverse order of disassembly.
- Before reassembly, check the cover gasket (B) for integrity.
Disassembly/assembly of the sensor receiving the solution level
Disassembly:
- Set the machine to stop position.
- Ensure the power supply cable is disconnected.
- Remove the tank assembly.
- Remove the screws (A).
- Lift and move aside the cover (B).
- Disconnect the function electronic board (E) and the electrical connector (C) of the sensor (D).
Warning! Handle the function electronic board (E) with care to prevent damage to its circuits and components.
- Disengage the fasteners (G) and the wiring harness (F) of the sensor (D). Remove the sensor (D) from the housing (H) and retrieve it with the wiring harness.
Assembly:
- Assemble the components in the reverse order of disassembly.
Dosing pump Disassembly/Assembly
The steps for disassembling and assembling the dosing pump are identical to the motor disassembly/assembly procedure.
Cylindrical Brush System
Removal and Installation
Belt and Pulley Disassembly/Assembly
Disassembly:
- Set the machine to stop position.
- Ensure the power supply cable is disconnected.
- Remove the tank assembly.
- Remove the brush.
- Remove the two squeegee bars.
- On the lower side of the deck, remove the screws (A).
- Turn the machine to its original position (B).
- Press the unlock pedal (C) and fully lower the frame (D).
- Using a screwdriver, slightly separate the trigger lever (E) from the track (F), then lift the front side (G) of the cover (H) as shown in the figure.
- Remove the cover (H) by disengaging its ends (I) from the machine.
- Loosen the screws (J) and remove the collars (K) fastening the ring gear (L).
- Remove the ring gear (L) by disengaging it from the belt.
- Retrieve the bearing (M).
- To remove the belt (N), on the brush side, perform the following procedures: Remove the screws (P), Remove the guard (Q), Remove the ring gear assembly with brush hub and belt (R), Disengage the belt (R) from the ring gear (S) and retrieve it.
- To remove the belt (T), on the motor side, perform the following procedures: Remove the belt (T) from the ring gear (U), with a screwdriver, then retrieve it.
Assembly:
- Assemble the components in the reverse order of disassembly.
