HM380 breaker lower bush 332/A2446 JCB, aftermarket

For the JCB hydraulic breakers: HM380 breaker lower bush 332/A2446, an aftermarket part. According to the product card, this part is a breaker lower bush for the HM380 breaker.

Bush clearance is measured when the tool is changed, and bushes beyond the maker's limit are replaced. Bushes are chosen by part number for the breaker model and pressed in, and the seat in the front head must be clean and free of burrs. The tool is checked with the new bushes, as a worn tool will soon spoil a new bush.

Specifications

Compatibility

According to the product card, the part number is 332/A2446. 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.