Most commonly, when working in rainy or snowy days, or running an small excavator around muddy water, operator must remember to clean the digger, lubricate all the joints, and check out if any parts are damaged or loosen.

If excavators are used in sea water, operator has to wash the parts immersed in salt water with clean water, in particular to see whether the electric system is rusted or not. Next, to protect the exposed metal parts of excavator with oil, all the devices, components and parts of small excavator shall be lubricated. Any problem must be handled in time otherwise excavator’s operation will be greatly affected by sea corrosion.

Excavators in field operation usually gather more dust, thus its air filter should be replaced earlier than normal condition in order to ensure a good running of engine. Moreover, the radiator, diesel filter, initiator and rectifier of the small excavator must also be washed with clean water.

During mining operation, the chassis, driving wheel, guide wheel, track roller, supporting roller and crawler belt of small excavators are more likely to be damaged by the rocks; therefore, it is better for the operator to loosen up the tightness of crawler and change the damaged parts timely.