Because the excavator operating environment is complex and bad, it is inevitable to occasionally de-chain. If the excavator is often de-chain, it is necessary to find the reason, because the excavator de-chain is easy to lead to accidents. So what are the reasons for the long arm excavator chain removal? Today we will talk briefly about the six common reasons for the long arm excavator to break off the chain.
1.Dechain caused by tensioning cylinder failure.At this time, should check whether the tightening oil cylinder forget to beat butter, see whether the tightening oil cylinder oil leakage phenomenon.
2. Dechain caused by severe wear of caterpillar.If used for a long time, the track is definitely worn, and the wear of the chain tendons, chain barrel and other components on the track will also lead to the track chain.
3. Disconnection caused by wear of track link guard .Now almost all excavators have track link guard on the crawler, and the chain protectors can play a very important role in preventing decoupling, so it is also very important to check whether the chain protectors are worn.
4.drive motor gear ring wear caused by the chain.For the gear ring of the drive motor, if the wear is serious, we need to replace it, which is also an important reason for the chain of the excavator.
Disconnection caused by damage of track roller ,carrier roller and sprocket .In general, oil leakage of the sprocket seal will lead to serious wear of the sprocket, which will lead to the de-chaining of the crawler.
6.Dechain caused by damage of idler .When looking at the idler, it is necessary to check that the screws on the idler are not missing or broken.There is no change in the slot of the guide wheel
Above, we briefly introduced the six reasons for the chain failure of excavator, and more knowledge comes from practice.Xiaobian summed up some of the reasons for excavator de-chain and prevent de-chain skills, let’s take a look at the following. Generally, it is best to idler in front of the high and low road. If the chain is removed from the track hub sprocket, it is generally serious wear of the track roller, which can not press the chain bone and cause the track hub sprocket to bite off the rails.
And from the front idler to take off the chain is usually at the time of high and low, easy, because the side track in the uneven road surface, can cause the treads high and low, one side of the crawler is low due to the chain plate can not pressure can lead to cheating, but if the chain is the direction of the big head bone toward the in front idler , this problem can be solved, because otherwise front idler pressure easily to cheat chain bone head.
Maybe someone say that like this will drive wheel is easy to take off the chain, it doesn’t matter much, because of the front idler properties and structure of driving wheel is different, if the roller wear is not too serious, the general will not take off from here, but the guide wheel there is different, roller was even if you are new, also I have is caterpillar track it will also take off the chain, this is my practice out after several times to take off the chain.
Summary: For the long arm excavator off the chain, the reasons are more.In general, the excavator occasionally off the chain once, which is mostly caused by soil or stones, sometimes incorrect operation will also lead to off the chain.If often off the chain, then we need to find the reason, so as not to cause greater losses.
Post time: Jul-22-2021
