Troubleshooting; General Machine Troubleshooting; Tripping The Circuit Breakers - Nilfisk-Advance Liberty SC60 Instructions For Use Manual

TROUBLESHOOTING

GENERAL MACHINE TROUBLESHOOTING

Problem
Poor water pick-up
Poor scrubbing performance
Poor Sweeping Performance
(Cylindrical System)
Inadequate or no solution
flow
Machine does not power ON
No FWD/REV wheel drive
No Detergent Flow

TRIPPING THE CIRCUIT BREAKERS

The circuit breakers are located in the operator's compartment. To access the circuit breakers open the Electrical
Compartment Access Door (16). Circuit breakers protect electrical circuits and motors from damage due to overload
or short circuit conditions. If a circuit breaker trips check for anything that may be binding the affected motor. If
source of the trouble is not apparent contact Nilfisk Service Center.
Circuit Breaker (CB)
Traction CB24
Scrub Brush CB5
Scrub Brush CB6
Vacuum CB7
Deck CB10
Squeegee CB9
11/2020
Possible Cause
Worn or torn squeegee blades
Squeegee out of adjustment
Recovery tank full
Recovery Tank Drain Hose (36) leak
Recovery tank cover gasket leak
Debris caught in Squeegee (11)
Recovery Hose (34) clogged or disconnected
Using too much solution
Vacuum OFF
Worn brush or pad
Wrong brush or pad type
Wrong cleaning detergent
Moving machine too fast
Not using enough scrub pressure
Not using enough solution
Solution is not flowing correctly
Hopper Full
Brushes worn
Bristles have taken a set
Solution tank empty
Solution filter (42), lines or valves clogged
Solution Shutoff Valve (41) closed
Solution Solenoid (43) plugged or defective
Solution pump (44) air locked
Solution drip tubes or trough plugged (cylindrical only)
Machine Battery Connector (39) disconnected
Blown Main Fuse 150 Amp (F1)
Emergency Stop (E or 7) activated, touchscreen
display will indicate an alert "Emergency Stop Button
Pressed."
Drive system speed controller
Empty Detergent Cartridge (13)
Plugged or kinked detergent flow line
Detergent pump
Amp
Motor
Rating
70 Amp Traction (Drive Wheel)
30 Amp Scrub Brush
30 Amp Scrub Brush
20 Amp Vacuum
5 Amp Scrub Deck Lift Actuator
5 Amp Squeegee Lift Actuator
INSTRUCTIONS FOR USE
Remedy
Reverse or replace
Adjust so blades touch floor evenly
across entire width
Empty recovery tank
Secure drain hose cap or replace
Seat gasket properly / Replace gasket
Clean squeegee assembly
Remove debris, connect hose to squeegee
Reduce flow via control panel solution switch
Turn vacuum ON
Replace brush or pad
Consult Nilfisk
Consult Nilfisk
Slow down
Increase scrub pressure
Increase solution flow
See "Inadequate or no solution flow" section in this table
Empty and clean hopper
Replace brushes
Rotate brushes
Fill solution tank
Clean solution filter and flush lines
Open solution shutoff valve
Clean or replace solenoid
(contact Nilfisk Authorized Service Center)
Remove drip tubes clean holes in tubes and trough
Reconnect battery connectors
Replace Main Fuse 100 Amp
Reset the Emergency Stop
Check error fault codes
(contact Nilfisk Authorized Service Center)
Fill detergent cartridge
Purge system, straighten lines to
remove any kinks
Check pump, wiring and lines
56091229 - Nilfisk Liberty SC60
ENGLISH - A
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