The function of the excavator's supporting sprocket is to maintain the linear motion of the chain rail. If the supporting sprocket is damaged, the crawler track will not be able to keep running in a straight line, which will inevitably affect work efficiency. What is the reason for the damage to the supporting sprocket? How to extend the use of the supporting sprocket? Pay attention to these points.
Precautions
▊ Avoid soaking the supporting sprocket in muddy water.
▊ It is necessary to keep the X-frame inclined platform clean at ordinary times, and do not let too much dirt and gravel accumulate to hinder the rotation of the supporting sprocket.
▊ Be sure to keep the rollers dry in winter, because there is a floating seal between the outer wheel and the shaft of the roller. If there is water, it will freeze at night. When the excavator is moved, the floating seal will be scratched when it comes into contact with the ice, causing Oil leak.
▊ If the supporting sprocket is often damaged, it may be related to the walking habits of the excavator. When the excavator walks forward, with the motor in front and the guide wheel in the back, the upper part of the track is tightened and the lower part is loose, and the supporting sprocket is under great stress. If you walk with this habit for a long time, the supporting sprocket will be more easily damaged; on the contrary, the supporting sprocket will be more easily damaged. , the service life of the supporting sprocket can be extended.
▊ Using poor quality bolts or carrier wheels can easily cause the carrier wheels to fall or be damaged. It is recommended to use a better quality supporting sprocket when replacing it, the original one is the best.
Note: The lubricating oil is injected into the supporting sprocket once. If oil leaks, the supporting sprocket can only be replaced with a new one.
How to replace the supporting sprocket
▊ Disassembly steps
1. Disassemble the track, and then remove the nuts and hexagon socket bolts supporting the fastening parts.
2. Before replacing the new supporting sprocket, you need to turn the supporting sprocket by hand to check whether the rotation is smooth and whether there is oil leakage.
▊ Installation steps
1. Install the hexagon socket bolts and align the nuts with the center side of the excavator.
2. When assembling the roller, press in the collar until it touches the support, then install the countersink hole on the end face of the shaft upward, apply glue on the hexagonal bolts, and then tighten