Caterpillar C317 — Slave Piston Adjusting Screw (Clip Valve) Cleaning and Inspection
Maintenance
For the Caterpillar C317, from the Caterpillar service manual.
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Before you start
- Do not adjust or tamper with the adjusting screw assembly. Engine damage could result.
Procedure
- Loosen slave piston adjusting screw locknut and remove adjusting screw from housing.
- Clean in an approved cleaning solvent.
- Inspect slave piston adjusting screw; plunger should protrude from the bottom, have light spring pressure when depressed, and move freely.
- Replace the entire screw assembly if any defect is found.
Specs & values
- Part number located at top of screw next to screwdriver slot
Source: Caterpillar service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.