Crawler is widely used in construction machinery and equipment, and is a part of the walking device of crawler excavator. Since excavators are generally constructed in a harsh environment, it is inevitable that the crawler will be loose, damaged, broken and other faults. What are the reasons for the damage of one side crawler of excavators?
Fault performance:
A Hitachi zx360k-5a excavator walked normally when it was working at the construction site this morning, but it was found that one side of the abdominal belt of the excavator could not walk in the afternoon.
Causes for failure of unilateral track of Hitachi zx360k-5a excavator:
1 the main pump supplying oil to the unilateral crawler is damaged.
2 the track rail is broken.
3. The traveling pilot valve is damaged, and the traveling servo pressure is too low, resulting in the failure of the excavator unilateral track.
4. The main valve rod is stuck and the spring is broken.
5 the travel motor is damaged.
6. The traveling reducer is damaged, resulting in the failure that one side track of the excavator cannot travel.
7 communicate with the upper and lower cavities of the adapter.
8. If the traveling oil pipe bursts, it will also cause the failure of the excavator's unilateral crawler.
Maintenance method for failure of unilateral track of Hitachi zx360k-5a excavator:
1 replace the main traveling pump of the excavator.
2 connect the abdominal belt rail.
3 repair or replace the main valve rod and spring.
4 replace the travel pilot valve and adjust the servo pressure.
5 replace the excavator travel motor.
6 replace the excavator travel reducer.
7 replace the oil seal or clean the assembly.
8 replace the traveling oil pipe of the excavator.
