发掘机脱链的缘由是很多的，除了履带进土或者石子等杂质会招致发掘机脱链外，还有行走齿圈、托链轮、护链器等的毛病会招致发掘机脱链。另外，操作不当也会招致发掘机脱链的。
There are many reasons why the excavator is out of chains. In addition to the impurities such as tracked soil or stones, the excavator will be out of chains. There are also some central faults such as traveling gear rings, bracket sprockets, chain protectors and so on, which will cause the excavator to be out of chains. In addition, improper operation will also lead to the excavator out of chain.
1、涨紧油缸毛病招致的脱链。
1. Unlocking caused by the trouble of tightening cylinder.
此时，应该检查涨紧油缸能否遗忘打黄油，看看涨紧油缸能否有漏油现象。
At this point, it should be checked whether the tightening cylinder can forget to beat butter, to see if there is oil leakage phenomenon in the tightening cylinder.
2、履带磨损严重招致的脱链。
2. Derailment caused by serious wear of caterpillars.
加长臂发掘机租赁假如长时间运用的话，履带肯定是有磨损的，而履带上的链筋，链筒等部件的磨损也会招致履带脱链。
Anhui elongated arm excavator lease if used for a long time, there must be wear and tear on the caterpillar, and the wear of the chain, chains and other components on the caterpillar will also cause the caterpillar to be derailed.
3、护链器磨损招致的脱链。
3. Disconnection caused by wear of chain protector.
如今简直一切的发掘机履带上都有护链器，而护链器关于避免脱链能起到十分重要的作用，所以检查护链器能否有磨损也是很重要的。
Nowadays almost all excavators have chain protectors on their caterpillars, and chain protectors can play a very important role in avoiding chain breaking, so it is also very important to check whether the chain protectors are worn or not.
4、驱动马达齿圈磨损招致的脱链。
4. Disconnection caused by wear of gear ring of driving motor.
关于驱动马达齿圈来说，假如磨损严重的话，我们就需求改换了，这也是发掘机脱链的一个重要缘由了。
As for the drive motor gear ring, if the wear is serious, we need to change it. This is also an important reason why the excavator is out of chain.
5、加长臂发掘机托链轮损坏招致的脱链。
5. Disconnection caused by damage of chain wheel of elongated arm excavator.
普通状况下，托链轮油封漏油会招致托链轮磨损严重，这样就会招致履带脱链。
Under normal conditions, oil leakage of bracket sprocket oil seal will cause serious wear of bracket sprocket, which will lead to derailment of caterpillar.
6、引导加长臂发掘机轮损坏招致的脱链。
6. Disconnecting caused by damage to the wheel of the guided elongated arm excavator.
查看引导轮时，要观察引导轮上面的螺丝没有缺，有没有断裂。 卡引导轮的那个槽，有没有变型。
When checking the guide wheel, it is necessary to observe whether the screw on the guide wheel is missing or broken. Is there any variant of the slot of the guide wheel of the card?
