Nilfisk-Advance CS7000 Fuel Cell EcoFlex, Service Manual

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Squeegee System 350 Service Manual – CS7000
Troubleshooting
Note: You can use the Service Mode to toggle the various system components on and off to check for
function. Refer to the Control System/Service Mode section for information on how to enter
and use the Service Mode.
Problem Cause Correction
The squeegee will
not rise or lower.
An interlock is not closed. Before you start troubleshooting a specific system,
check to make sure:
• The emergency stop switch (
S15
) on the Operator
control panel is disengaged (rotate clockwise).
• The safety relay from the steering system (
K14
) is
closed.
• The seat switch (
S9
) is closed.
• The battery interlock proximity sensor (
S13
) is
closed.
The squeegee actuator
motor (
M12
) is not operating.
1. Check the wiring and connectors from the A1
Main Machine Controller to the squeegee actuator
motor and repair as necessary.
2. Check the operation of the squeegee actuator
motor. If the motor doesn’t operate correctly,
replace the squeegee actuator.
3. Check the voltage outputs from
J2-8
and
J2-9
on
the A1 Main Machine Controller.
The squeegee is not
picking up the water
effectively.
There is a vacuum leak
between the squeegee
weldment and the recovery
tank.
• Make sure the squeegee hose is installed correctly
in the recovery tank and on the squeegee
weldment.
• Check the squeegee hose for damage or cracks
and replace if necessary.
The squeegee blade(s) is/
are worn out.
• Flip the squeegee blade(s) around to position a
new blade surface on the floor.
• Replace the squeegee blade(s).
The squeegee actuator is
not lowering the squeegee
far enough onto the floor.
The squeegee down time is not set correctly. Refer
to the Control System/Troubleshooting/Hidden
Menus/User Options Menu section.
The squeegee is not
picking up the water
consistently along
the entire length of
the squeegee.
The squeegee tilt need to be
adjusted.
Adjust the squeegee tilt. (Refer to the Maintenance
and Adjustments/To Adjust the Squeegee Tilt
section.