Mini excavators have demonstrated extraordinary capabilities in many fields with their compact body, flexible operability and multi-functional adaptability. Master the wearing parts and common fault repair skills of mini small excavators to reduce costs and increase efficiency.

Due to their compact design and frequent operation, small mini excavators are prone to wear or failure after long-term use. Repairing excavators is the key to ensuring efficient operation of equipment and extending their service life.

After a period of use, the mini excavator has slow movements, abnormal machine noises, weak walking, and abnormally high oil temperature. The reason is that the high-pressure operation of the excavator causes wear of the internal gears or plungers. You can check the oil pump pressure, replace damaged seals or pump bodies, and clean or replace clogged hydraulic valves.

The small mini excavator is difficult to start, emits black smoke, and has reduced power. There is a problem with the excavator's engine. You can clean the air filter, see if the fuel filter is clogged, and use diesel additives to remove carbon deposits from the injector nozzle.

If the excavator shows crawler slippage, abnormal rotation noise, and walking deviation, please refer to the mini digger manual to adjust the crawler, add butter to the slewing bearing, check the sealing of the walking motor, and replace the worn O-ring.

If the mini excavator dashboard alarms, the circuit is short-circuited, or the sensor fails, the cause may be aging of the wiring harness and loose connectors. Check whether the insulation layer of the wiring harness is damaged. For mini excavators operating in humid environments, add waterproof rubber sleeves or sealants.

The maintenance of mini excavators should be mainly preventive maintenance and supplemented by rapid response, focusing on the maintenance of the hydraulic system and engine. Users should choose an appropriate maintenance plan according to the operating environment and give priority to the use of original accessories to reduce the failure rate.