7 reasons to quickly understand why an excavator derails?
If you want to quickly resolve the derailment of the excavator track, you should first find the cause of the failure, and then you can solve the problem faster after you know the cause. Excavator "drop chain" is generally caused by the following 7 reasons.
1. The chain is dropped due to external reasons, the track of the excavator enters the soil or stone and other impurities. After passing through the uneven road, the track shoes will be severely unbalanced in force, which is prone to failure.
2. The operator's operation skills are not enough. Improper operation when turning or walking while driving the excavator will also cause derailment failure.
3. The four wheels and one belt are not on the same plane, causing the track to derail, which is often caused by the damage of the guide wheels. It is necessary to carefully observe whether the screws on the guide wheel are missing, whether there is any breakage, and whether the groove of the card guide wheel is deformed. If necessary, the guide wheel needs to be replaced.
4. When the oil seal of the tensioning cylinder leaks oil or the spring at the tensioning device breaks, the track will become too loose, which will cause off-chain problems. You should check in time whether the tension cylinder has forgotten to butter, and see if there is any problem with the tension cylinder.
5. When the chain protector is severely worn, it can also cause the excavator to delink, the chain guard cannot properly limit the track, and the track plate swings too much, causing the chain to delink.
6. The excavator has been used for a long time and walks too much, the crawler must be worn, and the wear of the links, chain barrels and other parts on the crawler will also cause the crawler to fall off the chain.
7. For the drive motor ring gear, when the wear is too serious, it needs to be replaced in time, which will also cause the excavator to be off-chain.
The old driver teaches you two ways to quickly solve the "derailment" of the excavator
Type 1: Bucket installation with excavator
One of the most common installation methods utilizes the bucket of an excavator. The first thing is to remove the chain mouth, let the butter go, and let the track relax, and then according to the situation, use the excavator bucket and walking to cooperate, the track slides out, you can use the bucket to push part of the track Go to the guide wheel or drive wheel, and then rotate the walking drive wheel to load the track back.
If the track slides out of the track inward, the bucket will not reach the track. This requires the use of a wire rope, pulling part of the track onto the guide wheels or drive wheels, and then rotating the walking drive wheels. It is only necessary to pay attention to the operation. The excess distance of the slack of the track should be more at the installation place, and it is easier to install. After the positions of the guide wheels and the driving wheels are installed, the crawler is basically installed, and the track rollers can be passed through.
The second type: using steel pipes or shovel to install track
Earlier in the article "It only takes 5 minutes and 1 steel pipe to quickly solve the small excavation" derailment "", I also shared a quick track installation method:
The first step: When the excavation is small, keep calm and not panic, remember to put butter first.
Step 2: Obtain the material on site at the construction site, find a steel pipe or shovel, and remember to find a longer one.
Step 3: Use the principle of levers, use a bucket to hold the steel pipe back a little, and squeeze out the yellow meat!
Step 4: Then use a steel pipe to straighten the chain here, and straighten the chain here.
Step 5: Continue to use the bucket to pin the steel pipe to the limit of the rotation force. Slowly move backward to feel the jamming sound. Adjust the bucket to continue the pinning.
In the end, when the small dig was derailed, it was pried with a steel pipe and then pinned with a digging bucket. Once it fell, it went up. It was as simple as that.
