Installing 55017281 requires a trained technician, calibrated tools, and the official Sandvik service manual. Est. time: 30–90 min.
Related: Also review the Sandvik 20891908 installation guide if servicing the full assembly.
Park on level ground, engage brake, chock wheels. Disconnect battery negative. Depressurize hydraulic system to 0 bar before starting work.
Calibrated torque wrench, metric socket set, rubber mallet, penetrating oil, anti-seize compound, lint-free rags, safety glasses and gloves.
Locate sandvik/tamrock feed rail component per Sandvik service manual for your serial number. Consult the parts diagram for exact mounting locations.
Apply penetrating oil 15 min before removal. Remove fasteners in cross-pattern. Support the assembly before removing the final fastener.
Clean seating surfaces. Check for cracks, corrosion, or thread damage. Inspect for frame fatigue cracks near mounting bosses.
Position 55017281 correctly — check orientation markings. Insert fasteners hand-tight. Confirm correct seating.
Slide bar retaining screws must be secured to prevent bars from backing out during drilling. Apply thread-locking compound and torque to specification.
Reconnect battery. Idle 5 min. Check for leaks or unusual vibration. Test under light load before returning to full service.
Slide bar retaining screws must be secured to prevent bars from backing out during drilling. Apply thread-locking compound and torque to specification.
How do I know when slide bars need replacement?
Replace when drill alignment wanders, when feed rate control becomes imprecise, or when visible wear grooves exceed 1 mm depth.
What causes premature slide bar wear?
The primary cause is contaminated lubrication — rock dust mixed with grease becomes an abrasive paste. The second cause is incorrect grease type or insufficient grease quantity.
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Have all tools verified and calibrated before starting. A missing or uncalibrated tool is the most common reason installers improvise and cause damage to the new part.
These are the most frequent technician errors that cause repeat failures after installation of 55017281:
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