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1启动电动机不运转故障原因:接线断脱或接触不良;蓄电池无电或蓄电池电压过低;电动机碳刷没有和整流子接触、整流子脏污;启动电动机内部线路短路。
1 start the motor does not run. Fault reason: the wiring is broken or poor contact; no battery or battery voltage is too low; the motor brush does not contact the commutator, the commutator dirty; start the motor internal circuit short circuit.