HM380 tool retaining pin 332/A3879 JCB, aftermarket

For the JCB hydraulic breakers: HM380 tool retaining pin 332/A3879, an aftermarket part. According to the product card, this part is a tool retaining pin for the HM380 breaker.

Pins and stoppers are chosen by part number for the breaker model. Each time the tool is changed the pins are inspected, burrs removed and worn pins replaced. Before fitting, the pin bore is cleaned and lightly greased, and the stopper or plug is seated fully.

Specifications

Compatibility

According to the product card, the part number is 332/A3879. Fit is confirmed by the part number and the breaker or machine serial number. Other parts are in JCB hydraulic breaker parts.

Fitting

Before working on the breaker, stop the machine, release the hydraulic pressure and lower the breaker to the ground in a stable position. If the nitrogen chamber is involved, release the gas pressure first as the maker instructs. After fitting the part, tighten the bolts to the specified torque, grease the tool bush and test the breaker briefly under light load.