The idler roller is an important part of the walking system of large-scale construction machinery such as excavators. It is installed on the track to guide the track. Its main function is to guide the correct winding of the track while.adjusing the tension of the track shoe. The front roller is not only the guide wheel of the track, but also the tensioner .
How to replace the track idler roller ?
1.First remove the excavator’s track shoe.
Remove a one-way valve at the grease nipple, release the butter inside, push the guide wheel in with a bucket, make the track shoe as loose as possible.Remove the track pin if the excavator is below 150T. If it is more than 150T, use a bucket to hook off the track. Remember to remove the single valve, otherwise it will be difficult to remove the track, let alone install it.nstall the idler roller
2. Install the front roller excavator
The idler roller installation is the same as the general wheel installation method. Use a jack to support the excavator, and then use a screwdriver to unscrew the screws. After removing them, install the new wheels and apply lubricating oil to complete the installation
Use a grease gun to inject butter into the grease cylinder through the grease nozzle, make the piston stretch out to push the tension spring, and move the guide wheel to the left to tighten the track. The tension spring has an appropriate stroke, and the spring is compressed when the tension force is too large. It acts as a buffer; after the excessive tension disappears, the compressed spring pushes the guide wheel to its original position. This can ensure sliding along the track frame to change the wheelbase, ensure the disassembly and assembly of the track, reduce the impact of the walking process, and avoid the derailment of the rail chain. The cause of damage to the idler roller assembly is mainly due to poor lubrication of the shaft.
JINJIA Machinery is the professional manufacturer for undercarriage parts with casting factory, forging factory and machning factory since 1990.We specially manufacture carrier roller,track roller,sproket rim,track link assy,track shoe.
Post time: Mar-20-2023
