207-30-54140 Spring Fits KOMATSU PC300-6 model-131-480 detailed instructions on how to

detailed instructions on how to tear down your machine

960110264-08

This track adjuster grease relief valve (also called a check valve or checkball fitting) screws directly into the track adjuster assembly to allow grease to be added to the track tensioner

Magnum 425 6x6

PowerDrive

207-30-54140 Spring Fits KOMATSU PC300-6 model-131-480 detailed instructions on how toOne New Aftermarket Replacement Track Recoil Spring for Komatsu Excavators This aftermarket replacement track recoil spring fits the Komatsu PC300 6 excavator and related models. Located in the track adjuster assembly on each undercarriage side, the recoil spring absorbs shock and impact loads from the track and front idler, protecting the undercarriage from overload damage and maintaining proper track tension across rugged terrain. Compatible Models