Perkins — NOTICE

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

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Procedure

1. 1. Ensure that the No. 1 cylinder is at top dead
2. center on the compression stroke. Refer to the
3. Testing and Adjusting Manual, “Finding Top
4. Center Position for No. 1 Piston”.
5. g00956204
6. Illustration 11
7. Typical example
8. 2. Loosen the locking screw (5). Rotate the spacer
9. (6) in order to allow the locking screw (5) to
10. tighten against the shaft of the fuel injection
11. pump. Rotate the fuel injection pump gear in a
12. counterclockwise direction in order to remove
13. the backlash. Tighten the locking screw (5) to a
14. torque of 17 N·m (13 lb ft).
15. Note: The locking screw (5) must be tightened in
16. order to prevent the shaft of the fuel injection pump
17. from rotating. The shaft of the fuel injection pump
18. must not be rotated after the fuel injection pump
19. has been removed from the engine.
20. Note: Put identification marks on all fuel hose

Source: manual:Perkins-1103-1104-Series-Workshop-Manual.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.