TM 9-2320-272-24-4
5-19. FUEL INJECTOR REPAIR (Contd)
Remove injector (4) and body wrench from loading fixture.
14.
Remove plunger (2) from injector (4).
15.
Apply clean diesel fuel to coat plunger (2).
16.
17.
Insert plunger (2) into injector (4) so plunger (2) remains 0.5 in. (12.7 mm) from edge of adapter (1).
Press plunger (2) into cup retainer (3) with palm of hand.
18.
CAUTION
Do not allow plunger to fall out. Damage to plunger may result.
19.
Turn cup retainer (3) and adapter (1) with one hand so cup retainer (3) faces upward. Plunger (2)
should slide out immediately. If plunger (2) does not slide out immediately, the injector (4) is not
aligned and must be reassembled as outlined in steps 1 through 18.
Install body wrench in vise.
20.
Slide injector (4) into body wrench.
21.
Place spring (9) and spring retainer (5) in injector (4).
22.
Slide plunger (2) into injector (4).
23.
Thread locknut (8) and adjusting screw (7) into injector (4) with locknut wrench and top-stop
24.
adjusting wrench (6) until locknut (8) contacts adapter (10). Tighten locknut (8) 55 lb-ft
(75 Nlm).
Remove injector (4) from body wrench.
25.
Slide two new large O-rings (15) over end of injector (4) and into two upper grooves (11) and (12) of
26.
adapter (10).
Slide new small O-ring (14) over end of injector (4) into lowest groove (13) on adapter (10).
27.
Place new inlet fuel screen (17) over adapter orifice (18) and install with new retainer ring (16).
28.
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