There are no hard and fast rules about when to replace pins and bushings on backhoes — each application is unique. The life of these wearing parts varies from operation to operation and is subject to strict maintenance protocols. The only way to know when to replace the excavator pins and bushings is to perform a visual inspection.

WHAT ARE THE SIGNS IT’S TIME TO REPLACE BACKHOE PINS AND BUSHINGS?

Any slack visible at the pivot point during operation, also known as backhoe tilt, means it’s time to replace the pin and bushing. Observe the pivot point carefully to identify whether the motion is static or dynamic in the assembly part.

If you can see any movement in what should be static parts and you’ve waited too long to complete maintenance, your repairs will be more extensive.

WHAT ARE THE RISKS OF WAITING TO DO THE REPAIR?

If the replacement of the pin sleeve is not completed until the static part is in motion, the repair cannot be completed in the field. In such cases, holes must be welded and drilled back to industry standards before new pins and bushings can be considered.

Shock loads due to relaxation can increase fatigue, accelerating the pain of all iron near excessive wear. You are advised to rectify the fault before it occurs.

Many backhoe operators wait for this repair because they are still able to operate the equipment and do some of the backhoe slop work. This is a costly mistake, because the time and service cost to complete the repair can eventually increase significantly if the repair is delayed.

Arrange equipment service

If you need to order sales and bushings, please contact Bonovo, a manufacturer of excavator attachments from China. Once you’re done repairing, remember that the key to maximizing the life of your pins and bushings is to prevent foreign bodies in the joints by using the right quality and amount of grease on the pivot point of your excavator.