General fault diagnosis and maintenance
| Fault type | NO. | fault phenomenon | Analysis of causes | Disposal method |
| Enginery | 1 | Excavator action abnormal sound | Inadequate grease injection | Injection grease |
| 2 | Drop the track while walking | Insufficient tightening of crawler belt | Adjust the crawler rise tightening volume | |
| Hydraulic class | 1 | The machine is slow and weak | In low temperatures, the hydraulic oil is relatively viscous | Low-speed operation of the machinery, gradually heating up |
| 2 | In high temperature weather, the hydraulic oil leakage is seriou | Replace the high-viscosity hydraulic oil or stop it for cooling | ||
| 3 | In the normal environment, the hydraulic system pressure is low | Adjust the hydraulic system pressure | ||
| 4 | Low hydraulic system flow under normal environment | Check and replace the hydraulic pump | ||
| 5 | Hydraulic oil less | Check and replenish the hydraulic oil | ||
| Engine | 1 | The engine cannot start or emit black smoke | Lack of fuel | Check and add the fuel oil |
| 2 | Battery loss | Replace the storage battery or use the external battery | ||
| 3 | Power line loose | Check the power cord and repair it | ||
| 4 | Engine failure | Replace the engine | ||
| 5 | Air intake blockage | Check and clean up or replace the air filter element |
Transportation and placement
When hoisting the machine, the ceiling should be removed, and the bulldozer should be placed under the counterweight. Both ends of the bulldozer should be used as lifting points, and there should be a lifting hole at the earplate of the oil cylinder on the top of the boom, and the force should be lifted at three points.
