For small excavator operators, the track disconnection is a common problem. For small excavators, due to the harsh working environment, occasional chain disconnection is inevitable, because the crawler tracks into soil or stones will cause chain disconnection. If the small excavator is often disconnected from the chain, then it is necessary to find the reason, because the disconnection of the excavator can easily lead to accidents. So what are the reasons for the off-chain of small excavators? How to deal with it?

In fact, there are many reasons for the disconnection of small excavators. In addition to impurities such as crawlers or stones that will cause the small excavators to disconnect, there are also failures in the walking gear, sprocket, chain guard and other places that can cause small excavators. The excavator is off-chain. In addition, improper operation can also cause the small excavator to disconnect.

1. The chain disconnection caused by the failure of the tensioning cylinder.

Check whether the tightening cylinder has forgotten to grease, 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. Chain-off caused by wear and tear of the chain guard.

Almost all small excavators now have chain guards on the tracks, and chain guards can play a very important role in preventing chain disconnection, so it is also very important to check whether the chain guards are worn.

4. The chain disconnection caused by the wear of the drive motor gear ring.

For the drive motor gear ring, if it is severely worn, we need to replace it. This is also an important reason for the small 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. the chain off caused by the damage of 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?