The walking device of the small excavator is composed of four wheels and one belt. The small excavator uses the crawler belt to complete the walking. The crawler belt is equivalent to its feet. When there is a problem with the two feet, which is what we often call the track derailment, we must Attention, solve it in time. What are the reasons for the derailment of small excavators? How to avoid it?

Reasons for track derailment of small excavators:

1. The processing and assembly problems of the parts of the small excavator; the main components bear a large load when working, and they are prone to wear after a long time of use;

2. The tensioning cylinder is faulty and the track is too loose;

3. Improper adjustment of the gap between the guide wheel, the bracket and the wear reducing plate;

4. Walking on the stone for a long time will cause uneven stress, breakage of the track pin, wear and tear of the chain, and break;

5. There is a foreign body between the guide wheel and the crawler frame, improper walking operation, uneven force on the crawler, which causes the crawler to be cracked or broken;

Off-chain handling techniques：

1. The four wheels and one belt are not on the same plane, causing the track to deviate. If this problem indicates that the small excavator needs to replace the guide wheels.

2. The track is too loose, causing the track to deviate. The tightness of the track is adjusted by the tensioning cylinder pushing the guide wheel. If the chain rail pin sleeve is worn out, the pin sleeve of each section must be replaced.

3. The track derailment caused by the wear and tear of the chain protection board does not work. Once the chain guard is worn out, the chain rail is likely to slip out of the chain guard, causing the track to deviate. At this time, it is necessary to repair or replace the chain guard.

The track is derailed, how to install it：

Archimedes once said: Give me a fulcrum and I can pry up the entire earth. When the track of a small excavator derails, how to make it return to normal, we also need a fulcrum. Our fulcrum is the bucket of a small excavator. According to the different situations of track derailment, the crawler can be installed back by using the tacit cooperation of the bucket and walking.