Perkins — Water Separator and Fuel Filter (Primary) - Remove and Install

Maintenance · Water separator and primary fuel filter

From a Perkins service manual — check it applies to your exact model before use.

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Procedure

1. Turn battery disconnect switch OFF.
2. Turn fuel supply OFF.
3. Place container below fuel filter base.
4. Disconnect hose assembly (3) from primary fuel filter assembly (5).
5. Remove bolts (1) and washers (2); move bracket (4); remove primary fuel filter assembly (5).
6. If necessary, disassemble primary fuel filter: remove adaptor (7) and O-ring seal (6); remove plug (7) and O-ring seal (9); remove plug (14); remove plugs (11,12,17,18) and O-ring seals (10,13,16,19);
7. If necessary, remove bracket (20): remove bolts (22) and washers (21).
8. Install bracket (20) and tighten bolts (22) to 240 N·m (177 lb ft).
9. Assemble primary fuel filter: install new element (15); install new O-ring seal (6) to adaptor (7) and tighten adaptor to 30 N·m (266 lb in); install new O-ring seal (9) to plug (8) and tighten plug t
10. Position primary fuel filter assembly (5) onto mounting bracket; position bracket (4).
11. Install washers (2) to bolts (1); install bolts (1) and tighten to 55 N·m (41 lb ft).
12. Connect hose assembly (3).
13. Turn fuel supply ON.
14. Turn battery disconnect switch ON.
15. Remove air from fuel system.

Source: Perkins 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.

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