Mainly: maintenance of engine, electrical equipment, instruments, transmission system, traveling mechanism, braking system, working device and whole machine.

The specific maintenance is as follows:

First, the engine

Check the engine fixing bolts,

2. Check the rubber buffer,

3. change the oil,

4. Replace the oil filter,

5. Clean the oil pan respirator,

6. Clean the diesel coarse filter,

7. Clean the filter at the inlet of diesel pump.

8. Exhaust the air in the fuel system,

9. Check the cooler,

10. Check the tension of the dispersion belt,

1 1. Add rust inhibitor,

12. Check the antifreeze ability of the coolant.

13. Replace the air cleaner element.

Second, electrical equipment and instruments: check the engine, generator and battery.

Third, the transmission system: check the torque converter and gearbox oil cooling system, and check the oil level of the front and rear axles.

Four, walking mechanism: check the tire pressure.

Verb (abbreviation of verb) Brake system: Check the air pressure in the brake disc fixing bolts, oil-water separator and air pump.

6. Working device: check the bucket, boom, rocker arm and fixing bolt.

Seven, the whole machine: check the front and rear frame and subframe and lubrication.