aluminum instrument enclosure.Common Mechanical Faults in Zinc Alloy Die Casting

　　Common mechanical faults include: 1. The oil pump cannot start. When encountering the problem of the oil pump not starting, press the start button to check whether the motor relay is engaged. If the motor relay is not engaged, check whether the motor relay is damaged, whether the power supply is normal, whether the relay coil is damaged, and whether the control circuit is open. If the motor relay is engaged, check whether the oil pump is stuck and whether the circuit from the relay to the motor is normal. 2、 Press the oil pump button, and the thermal relay trips. The reasons at this time include motor relay damage or low current, oil pump damage or tight assembly, causing the motor to work under overload. 3、 No low-voltage locking mode. If this situation occurs, it is necessary to observe whether the low-voltage locking indicator light on the electrical box panel is on. If the indicator light is not on, check the low-voltage locking induction switch to see if it is detected or damaged.

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