Nilfisk-ALTO 56114004, Руководство по обслуживанию

Страница: 81 / 93

Wheel System, Traction 81 Service Manual – Focus II / Scrubtec R6 Rider Autoscrubber
Troubleshooting
Problem Cause Correction
Display LED panel shows
an error 03 fault code.
Drive controller problem • Refer to the Wheel Drive Controller Error Codes
described on page 82
Wheel drive motor will not
run in either forward or
reverse.
Wheel drive motor circuit
breaker (CB1) tripped
• Reset the 70A circuit breaker
Control circuit, circuit
breaker (CB2) tripped
• Reset the 5A circuit breaker
Defective wheel drive
motor
• Check motor connections
• Inspect motor brushes
• Replace motor
Throttle potentiometer (R1)
problem
• Make sure the pedal is in the neutral position and
cycle the keyswitch
• Inspect the potentiometer wires and mechanical
linkage
Drive controller problem • Check the Status LED for a fault code and refer to
the Wheel Drive Controller Error Codes described
on page 82
Brake failure • To test for brake failure, manually release the brake
lever as described on page 8 and test the drive
motor again.
• Check for broken or disconnected brake wires.
• Measure the resistance of the brake. It should be
approximately 25 ohms.
Wheel drive motor will run
in only one direction but
not the other
Reverse control problem • Inspect the reverse wire (red/brn). A broken wire will
leave the machine in forward-only.
• Check the voltage of the Reverse output (J3-3) at
the Main Machine Controller. If the voltage does not
change, replace the controller.
• Check the voltage of the Reverse input (pin 17) at
the Wheel controller. If the voltage does change,
then replace the Wheel controller.
Machine rolls (no brake)
when not in drive mode
Electrical Problem • Disconnect the main battery connection. If the brake
engages, then it is an electrical problem.
• Inspect the Red/Wht brake wire for a short to
ground.
• Cycle the key switch, E-stop, or seat switch. If
the brake does not engage, replace the Wheel
controller.
• Cycle the key switch, E-stop, or seat switch. If the
brake does engage, it is likely the throttle position
sensor.
Mechanical Problem • Disconnect the main battery connection. If the
brake still does not engage, then it is a mechanical
problem.
• Inspect the manual release lever for obstruction.
• Repair or replace the brake module.