The excavator, a giant, completes very dangerous and difficult engineering work by means of a series of actions such as walking and turning. It is precisely for this reason that the excavator cannot make any mistakes in its actions. So when the excavator can't do the combined action, we can imagine how scared everyone will be. The following two reasons tell you why your excavator can't perform combined action, and how to repair the excavator?
Failure cause analysis
1. There may be an error in the circuit or the pump during installation.
2. It may also be that a small oil pipe was connected incorrectly.
3. When the boom and jib are combined, the oil volume of the jib must be throttled. It is recommended to check carefully in this respect.
4. Under normal conditions, the pressure of both pumps should be around 32000. When lifting the big back separately, the two pumps supply oil together, but when moving the jib, the two pumps will flow together. In theory, it should be slower. How about your working mode, boom priority or slewing priority? The pressure of slewing, bucket and walking is around 18,000.
Failure cause analysis II
1. The hydraulic oil is too little or the oil pump is weak.
2. Oil cylinder and diverter valve problems; The oil seal of the oil cylinder leaks and is damaged; The plunger of the oil cylinder is broken.
3. The hydraulic control valve is worn and can be used when the hydraulic oil temperature is low. When the hydraulic oil temperature rises, the density decreases. In this way, the valve group can not seal the oil when there is clearance.
Through the analysis of the above two reasons, we believe that we have understood that the excavator can not perform the combined action, but actually has a relationship with many components. We should carry out detailed inspection and judgment, and solve the fault as soon as possible, otherwise small problems will become major faults and will not be compensated!
