Top 10 Common Excavator Faults and Repair Methods

October 31, 2023/ in Industry News

Excavators are powerful machines used in various construction and excavation projects. However, like any mechanical equipment, they are prone to faults and breakdowns over time. Understanding these common excavator faults and knowing how to repair them is essential to ensure the uninterrupted operation of these heavy-duty machines. In this blog, we will discuss the top 10 common excavator faults and their repair methods.

1. The machine fails and cannot be started.

Cause of failure	The battery is not full	Coil or spark plug failure	Insufficient fuel
Solution	Check battery	Check the coil and spark plug	Replenish fuel

2. The machine travels slowly

Cause of failure	Insufficient butter	Transmission failure	Broken transmission belt
Solution	Add butter	Replace transmission	Replace drive belt

3. Machine deviation is serious

Cause of failure	Tire or track damage	Steering shaft wiring
Solution	Replace tires or tracks	Check steering shaft

4. Oil leakage

Cause of failure	Joint damage	Damaged sealing ring	Manufacturing defect
Solution	Replace the connector	Replace the sealing ring	Claim to the manufacturer

5. Load capacity decreases

Cause of failure	Isolator failure of arm and bucket	Hydraulic pump failure
Solution	Replace the isolator	Replace the hydraulic pump

6. Hydraulic system failure

Cause of failure	Insufficient oil	Pump or valve failure	Aging of oil seals
Solution	Add oil	Replace the pump and valve	Replace oil seal

7. Motor failure

Cause of failure	oil contamination or excessive accumulation	Insufficient maintenance	Excessive service life
Solution	Change oil	Make necessary repairs	Replace motor

8. Electrical failure

Cause of failure	damaged wire connector	Insufficient battery power	Switch failure
Solution	Replace the connector	Recharge the battery	Replace the switch

9. Cooling system failure

Cause of failure	radiator steam leakage	Fan motor failure	Water pump aging
Solution	Replace radiator	Replace fan motor	Replace water pump

10. The machine makes too much noise

Cause of failure	Hydraulic system failure	Component wear	Bearing failure	Insufficient cleaning
Solution	Repair hydraulic system	Replace worn parts	Replace bearings	Perform proper cleaning

Conclusion

During work or use, regular maintenance, timely detection of problems, and timely repairs can extend the service life of the excavator, minimize downtime, and ensure safe and efficient operations on construction sites. If in doubt, always refer to the manufacturer’s maintenance guidelines and seek professional help when needed.

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