Nilfisk-Advance SC6500 40C User Manual

Sweep System, Side Broom 171Service Manual – SC6500
™
Troubleshooting
Problem Cause Correction
Poor sweeping
performance
Brushes are worn or
damaged
Check and replace the brushes as necessary.
The broom height is not set
correctly.
Check and reset the broom height. Refer to the Side
Broom Height Adjustment section.
The brush gearmotor is not
operating correctly.
Check the gearmotor current draw with no load (6
amps nominal). Replace the gearmotor if necessary.
A side broom
motors will not run.
K6 Side broom motor
contactor coil overload (error
code 16 displayed)
The nominal coil resistance
is 100 ohms.
1. Check for a K6 coil wiring problem or short circuit
(wire colors VIO and BRN/BLK).
2. Check the coil resistance. If the resistance is
below 80 ohms, replace the contactor.
Side broom motor contactor
coil open (error code
36
displayed)
1. Check for open circuit in the K6 coil and wiring
(wire colors VIO and BRN/BLK).
2. Test for 36V at the K6 coil. If 0 Volts, check the A2
control board assembly.
K6 Side broom motor
contactor coil short to
ground (error code 37
displayed)
1. Disconnect the K6 coil wiring (wire colors VIO
and BRN/BLK) and check to see if the code
disappears.
− If the code disappears, replace the K6
contactor.
− If the code does reappear, test the wiring for
a short back to the battery ground. Repair or
replace the defective wire.
2. If the above test doesn’t remove the code,
substitute a new A2 control board assembly.
The side brooms
will not extend or
retract.
Side broom actuator
overload (error code
17
displayed)
• Normal current load is 1-2
amps.
• Max current load is 6
amps.
• Max current with no load
is 1.4 amps.
1. Check for binding or frozen side broom lift linkage
and excessive weight on the lifting arms.
2. Check for a short circuit in the actuator motor and
wiring. Repair or replace.
To test the actuator, disconnect the motor plug
and attach the actuator power cord adapter (p/n
56407502) and perform an amp draw test. Compare
readings to the current load specications.
Side broom actuator
motor open (error code
38
displayed)
1. Use an ohmmeter to check for an open circuit in
the M4 side broom actuator and its wiring (wire
colors GRA/VIO and GRN/ORN). If defective,
repair or replace.
2. Test for 36V at side broom actuator. If 0 Volts,
check the A2 control board assembly.

Nilfisk-Advance SC6500 40C Specifications

General

Brand	Nilfisk-Advance
Model	SC6500 40C
Category	Scrubber
Language	English