Excavator Track Adjuster Seal Kits

A seal kit may be suitable when the adjuster rod, cylinder bore, and housing remain serviceable. A scored bore, pitted or bent rod, cracked housing, or seized adjuster can prevent new seals from holding. McCann can inspect the components during strip-down and quote a replacement adjuster or recoil assembly if a reseal is unlikely to provide a durable repair.

Yes. Seal contents, dimensions, grease requirements, and tension settings vary by machine. Provide the make, model, and serial number so the correct OEM-channel or aftermarket kit can be identified. McCann states that kits for older or less common machines may need to be sourced, and a complete replacement adjuster may be the appropriate alternative when a kit is unavailable.

McCann offers in-shop and in-field assembly installation for this type of undercarriage repair. The service can include controlled strip-down, inspection of the rod and bore, resealing, reassembly, grease recharging, and setting track tension to the machine manufacturer’s specification. The correct fixture or press is required for recoil assembly work, and field improvisation should be avoided.

No. A track adjuster contains pressurized grease and works against a heavily compressed recoil spring. Removing the grease fitting or relief valve can release grease under pressure and create an injection injury hazard. Pressure must be controlled using the manufacturer’s procedure, with the discharge path avoided. Recoil spring disassembly also requires the correct fixture or press and should not be attempted in the field.

Provide the machine make, model, and serial number. This information helps the parts team identify the correct seal kit, determine whether an OEM-channel or aftermarket option is available, and check whether the machine requires a complete adjuster instead. Confirm the kit contents, availability, pricing, return terms, warranty terms, and any installation requirements before placing the order.

A chronically slack track can slap, de-track, and accelerate wear on the idler, rollers, sprocket, and track chain. Over-tightening the track to compensate can create additional undercarriage wear and load the final drive. Diagnosing and correcting the adjuster leak early helps protect related components. The track should be set to the manufacturer’s specified tension after the repair.

McCann carries excavators from three lines. CASE Construction Equipment covers excavators and mini excavators. KOBELCO covers mini excavators, conventional excavators, short-rear-swing excavators, and specialty excavators for long-reach, demolition, and material-handling applications. Takeuchi covers mini excavators. Parts and service for other makes, including CAT, Deere, Komatsu, Bobcat and Kubota, run through the same counter.