Kärcher 1.006-167.0, Operating Instructions Manual

Page: 55 / 151

55
Maintenance
PROBLEM CAUSE SOLUTION
Vacuum motor does not run, or
runs slowly
Faulty vacuum circuit or switch Check wires connections and motor
Worn vacuum motor brushes Replace brushes, check commutator
Vacuum shoes will not go up/
down
Faulty circuit or actuator Check wires, connectors and actuator
Poor scrubbing performance Debris caught in scrub brushes Remove debris
Worn brushes Replace brushes
Low battery charge Charge batteries
Little or no solution flow to the
floor
Solution tank empty Fill solution tank
Solution strainer plugged Clean solution strainer
Solution system plumbing obstructed Clear obstruction from plumbiing
Solution solenoid valve obstructed or
faulty.
Repair or replace solenoid valve
Clogged or dirty manifold Clean solution manifold
Brush motors do not run, or run
slowly
Low battery charge Charge battery
Faulty brush circuit or motor Check wires, connections and motor
Worn brush motor brushes
Replace brushes, check commutator
Scrub deck goes down, then
raises
Faulty actuator circuit or actuator Check wire connections and actuator
Optional Off-Aisle pump runs, but
no solution sprays from tool
nozzle
Clogged spray nozzle. Replace Nozzle
Machine solution tank empty. Fill solution tank
While in off-aisle mode with wand/hand
tool trigger squeezed, machine was
turned off by key switch, or emergency
stop switch.
Disconnect & reconnect solution
supply hose to pump
(relieves suction pressure buildup)
Optional Off-Aisle pump will not
run
Pump harness in-line fuse blown Replace fuse
Fuse cap or fuse making bad connec-
tion
Remove fuse cap and fuse, reinstall
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