TM 5-4310-362-14
Troubleshooting (cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. MOTOR WON'T RUN
Step 1. Check if main power switch is open.
Turn main power on.
Step 2. Check motor controls. (para 6-3)
Repair motor controls.
Step 3. Check wiring of motor.
Rewire motor correctly.
EXTERNAL WIRING OF MOTOR
Step 4. Check for open running windings. Check for ope n circuit between T1 and T2 or T3
and T4. (para 9-8)
Replace frame and stator assembly.
Step 5. Check for shorts between windings and motor frame. (para 9-8)
Replace frame and stator assembly.
3. MOTOR DOES NOT RUN AT FULL POWER
Step 1. Check motor for internal short. (para 9-8): Remove drive belts from motor. Connect
ammeter in series with motor. Run motor and check ammeter reading. If reading
shows more than 27 amps, motor is internally shorted.
Replace frame and stator assembly.
9-3
