The main reasons for poor start-up of diesel generator sets in daily life are as follows:

〈1〉The starting battery voltage is low and the actual capacity is insufficient. The displayed voltage is a virtual voltage;

〈2〉Wrong connection between starting battery cable and motor;

〈3〉Starting motor electromagnetic switch failure;

〈4〉The starting contactor of Cummins, Callebit, Wilson and other diesel engines failed;

<5> The starter motor of CIMC 495 diesel engine "spins".

Troubleshooting

〈1〉Use a multimeter to measure whether the voltage of the single battery and the DC output of the charger are normal, check the liquid level of the lead-acid battery, and add distilled water in due course;

〈2〉Remove the motor, check and adjust the contacts in the electromagnetic switch, if the contacts are burned out, replace the electromagnetic switch;

〈3〉Check if the battery negative cable is grounded (chassis), the wiring is wrong, just reconnect the cable;

〈4〉Use a multimeter to measure the resistance of the starting contactor coil of Cummins, Callebit and Wilson diesel engines (the resistance is generally in the tens of ohms). If it is abnormal, replace the contactor;

<5> Adjust the outer middle screw of the starter motor of CIMC 495 diesel engine to a strong position.

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