BASIC PART LIST

550 056 44E BASIC PART LIST This kit bundles the most common wear parts needed for a scheduled service or minor overhaul of a hydraulic drifter. It contains the critical seals and guide rings required to maintain correct internal pressures and prevent cross-contamination between circuits inside the drifter body. Replacing these items as a set is key to restoring the component's hydraulic efficiency.

Properly functioning internal seals directly affect drilling power and reliability. For instance, if a seal in the percussion circuit wears out, the drifter loses impact energy, which slows down the entire drilling cycle. Using this set ensures the drifter delivers consistent, powerful percussion and rotation, leading to better penetration rates and less unplanned downtime.

A gradual loss of drilling speed or visible oil leaks from the drifter are typical signs that internal components are worn. When performing the repair, it is much more effective to replace all the wear parts in this set at once, rather than just the single component that failed. This approach prevents a different worn seal from causing another failure shortly after.