Troubleshooting; Troubleshooting Gear Motors; The Gearmotor Will Not Run; The Gearmotor Starts Buts Trips Repeatedly On The Overload Protector - Cornelius CMP600–30A Service Manual

IMPORTANT: Only qualified personnel should service internal components or electrical wiring.

TROUBLESHOOTING GEAR MOTORS

Basically, Gear motor problems can be narrowed down to three areas of checkout.

THE GEARMOTOR WILL NOT RUN

1. No voltage to the transmission terminals – check external circuit.
2. Low voltage – check supply.
3. Problems in the gear motor electrical circuit. See Figure 5
THE GEARMOTOR STARTS BUTS TRIPS REPEATEDLY ON THE
OVERLOAD PROTECTOR:
1. Voltage – high or low voltage can cause the overload to trip.
2. High Gear motor amperage draw, see Specification Chart for ratings and Troubleshooting Guide.

THE MOTOR RUNS BUT OUTPUT SHAFT DOES NOT ROTATE:

1. Replace defective gear motor.
CAUTION: Be sure unit is disconnected from the power source. Disconnect the
transmission cable.
630460050SER

TROUBLESHOOTING

FIGURE 5. OUTPUT SHAFT

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