Caterpillar — Hydraulic System Oil Filter - Replace

Maintenance · Hydraulic oil filter

From a Caterpillar owner's manual — check it applies to your exact model before use.

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Procedure

1. Open engine access door.
2. Remove hydraulic tank filler cap.
3. Remove filter with strap type wrench. Catch spilled oil.
4. Clean filter element mounting base. Remove old gasket.
5. Apply light coat of oil to new filter gasket.
6. Install new filter hand tight until seal contacts base. Tighten per instructions using index marks.
7. Maintain hydraulic oil level to middle of sight gauge.
8. Inspect and install filler cap. Close access door.

Source: Caterpillar owner's 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.

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