Tennant 5540 Manual Del Operador página 18

OPERATION
TROUBLE SHOOTING - - continued
PROBLEM
Poor squeegee pick up.
Drive motor does not run.
Drive motor runs, but not correctly.
Little or no solution flow.
Safety lights do not work.
18
CAUSE
Recovery tank is full.
Ball float shutoff screen inside
recovery tank is clogged.
Squeegee is clogged with debris.
Squeegee blades are worn.
Squeegee thumbscrews are loose.
Vacuum hose connections are
loose or hose has a hole.
Vacuum hose is clogged with
debris.
Recovery tank water inlet is
plugged. Inlet is located at bottom
of recovery tank.
Tank gasket is defective.
Drain hose plug is loose.
Clear recovery tank lid is loose.
Vacuum motor is loose.
Battery charge is low.
Main circuit breaker has tripped or
is pulled.
Faulty Main switch.
Faulty speed control circuit board
or connection.
Faulty solenoid.
Faulty wiring.
Faulty drive motor.
Worn carbon brushes.
Faulty potentiometer or speed
control board.
Faulty resistor.
Solution flow lever in not activated.
Solution line or filter is clogged.
Solution valve is clogged.
Solution flow adjustment knob
needs adjusting.
Flasher is burned out.
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SOLUTION
Empty recovery tank.
Remove screen and clean.
Clean squeegee.
Replace squeegee blades.
Tighten thumbscrews.
Push hose cuffs firmly on connec-
tions. Replace hose if damaged.
Remove clogged debris.
Empty recovery tank and tilt it
sideways to locate inlet hole,
remove clogged debris.
Replace gasket.
Tighten drain plug.
Tighten lid.
Contact Service Center.
Charge batteries. Do not run
machine when battery meter is in
the red zone.
Determine cause and reset
breaker.
Contact Service Center.
Contact Service Center.
Contact Service Center.
Contact Service Center.
Contact Service Center.
Contact Service Center.
Contact Service Center.
Contact Service Center.
Push solution flow lever forward.
Remove hose and blow com-
pressed air through it. Flush solu-
tion tank after each use.
Remove valve and clean. Do not
scratch or damage inside of valve.
Turn solution flow knob clockwise
to increase flow.
Contact Service Center.
Tennant 5540/5560 (06- -01)