TROUBLESHOOTING [MICROMATIC M17B]
OPEN CIRCUIT
The brush motor fuse F1 determines the open circuit. This system allows to prevent the brush motor and circuits from being
damaged under overload conditions.
If there is an open in the circuit, the possible causes are:
Bulky debris or cords around the brush or between the brush and its ange (remove the brush and the debris or cords).
The brush motor electrical input is too high (check the electrical input).
THE BRUSH DOES NOT ROTATE
Possible causes:
The battery voltage is too low (charge the battery).
The motor carbon brushes are worn (replace).
The motor is faulty (repair or replace).
The brush motor fuse is burned (solve the problem and replace the fuse).
The brush ON/OFF switch (5) is broken (replace).
The reduction unit is faulty (repair or replace).
The wiring harness is damaged (repair).
The brush electromagnetic switch is damaged (replace).
TROUBLESHOOTING [MICROMATIC M17E]
THE BRUSH DOES NOT ROTATE
Possible causes:
The power supply cable is broken (replace).
The motor is faulty (repair or replace).
The brush ON/OFF switch (5) is broken (replace).
The reduction unit is faulty (repair or replace).
The wiring harness is damaged (repair).
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