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Home›Repair guides›Spin-on Filter Replacement

Caterpillar — Spin-on Filter Replacement

A Caterpillar service procedure — check it applies to your exact model before use.

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Before you start

  • Place a tray under the fuel filter in order to catch any fuel that might spill. Clean up any spilled fuel immediately.

Procedure

  1. Clean the outside of the fuel filter assembly. Open the fuel drain (3) and drain the fuel into a suitable container.
  2. Use a suitable tool in order to remove the spin-on filter (2) from the filter head (1).
  3. Ensure that the fuel drain (3) on the new spin-on filter is closed.
  4. Lubricate the sealing ring (4) with clean fuel oil.
  5. Install the spin-on filter (2) into the top of the filter head (1).
  6. Tighten the spin-on filter by hand until the sealing ring contacts the filter head. Rotate the spin-on filter through 90 degrees.
  7. Prime the fuel system.

Tools required

  • suitable tool

Source: manual:Cat-Operation-and-Maintenance-Manual-C3.3-and-C4.4-rental-generator-sets.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.