132HC Mast SectionFault analysis and troubleshooting method of starting button of tower crane
Fault analysis and troubleshooting method of starting button of tower crane
Start button does not start cause analysis:
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1. There is no working power supply for tower lifting;
2. Four-in-one protector action or damage
3. The handle is not zero;
4. The total start control line is broken;
5. Zero bit interlock contact or start, stop button damage;
6. Total contactor burned.
Start button does not start exclusion method:
1. Close the gate to send power to the tower hanging work;
2. Check the working voltage adjustment to 380V ± 5 %, repair or replace the four-in-one protector, adjust the power phase sequence;
3. Zeroing the handle;
4. Check for repairs;
5. Check repair or replacement elements;
6. Replacement of total start contactor
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