Minuteman ERide 21, Service Manual

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8.8 TROUBLE SHOOTING
THE ELECTRIC SUCTION MOTOR DOES NOT TURN ON THE ELECTRIC SUCTION MOTOR DOES NOT TURN ON
Possible causes can be:
1.
Electric vacuum motor with worn carbons (replace the electric motor
carbons)
2. Electric vacuum motor failure (check the motor's absorption)
3.
Electronic board functions damaged (replace it)
4. Recovery water tank, full and float activated (empty the recovery water
tank)
THE SUCTION OF THE DIRTY WATER IS INSUFFICIENT OR NOT TAKING
PLACE
Possible causes can be: Possible causes can be:
1.
Cover for the tanks (11, Figure 3-2 ) incorrectly positioned (position it
correctly)
2. Seal of the cover for the tanks, not efficient (eliminate the causes)
3.
Squeegee or vacuum hose clogged or damaged (clean or repair/replace
them))
4. Squeegee blades flaps torn or worn (replace them)
THE SQUEEGEE LEAVES MARKS OR DOES NOT COLLECT WATER
Possible causes can be:
1. Debris under the edge of the squeegee blades (remove it)
2. Squeegee blades flaps torn or worn (replace them)
3.
Squeegee height not adjusted properly (adjust it
4. The closure tap for the recovery water drain hose (16, Figure 3-3 ) is
open (close it)
THE SQUEEGEE CANNOT BE LIFTED/LOWERED THE SQUEEGEE CANNOT BE LIFTED/LOWERED
Possible causes can be:
1. Actuator failure (repair it/replace it)
2. Electronic board functions damaged (replace it)