There are many reasons for the excavator to go off the chain. In addition to dirt or stones and other impurities that will cause the excavator to go off the chain, there are also faults in the walking gear, sprocket, chain guard and other places that will cause the excavator to go off the chain. In addition, improper operation can also cause the excavator to disconnect.
1. The chain disconnection caused by the failure of the tensioning cylinder.
At this time, you should check whether the tightening cylinder has forgotten to fill with butter, and whether there is oil leakage in the tightening cylinder.
2. Chain off caused by severe crawler wear.
If it is used for a long time, the crawler belt must be worn, and the wear of the chain ribs, chain barrel and other parts on the crawler belt will also cause the crawler belt to fall off the chain.
3. De-chaining caused by wear of the chain protector.
Almost all excavator tracks now have chain protectors, and chain protectors play a very important role in preventing chain disconnection, so it is also very important to check whether the chain protectors are worn.
4. The chain disconnection caused by the wear of the gear ring of the drive motor.
For the drive motor gear ring, if it is severely worn, we need to replace it, which is also an important reason for the excavator to go off the chain.
5. Chain-off caused by damage to the sprocket wheel.
Under normal circumstances, oil seal leakage of the sprocket wheel will cause serious wear of the sprocket wheel, which will cause the track to fall off the chain.
6. Chain off caused by damage to the guide wheel.
When looking at the guide wheels, check that the screws on the guide wheels are not missing or broken. Is there any modification to the groove of the guide wheel?