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 TM 5-1940-277-20
TM 1940-20/2
2.
Using flat tip screwdriver loosen clamp (1) on hose to breather pipe. Disconnect hose.
Using flat tip screwdriver remove eight screws (2) securing rocker cover.
3.
4.
Remove rocker cover (3) and gasket (4) (refer to paragraph 3-125). Remove rocker arm assembly (refer to para-
graph 3-126).
Using 7/16 inch open and wrench disconnect union nut (5) on injector fuel return line (7).
5.
Using 7/16 inch open end wrench remove six injector bolts (6) connecting injector fuel return line (7) to injectors.
6.
Remove injector fuel return line (7).
7.
Using cross tip screwdriver remove injector pipe clamps (8).
8.
Using 1-5/16 inch open end wrench loosen oil seal retaining nut(s) (9).
9.
Using 7/8 inch open end wrench, disconnect fuel inlet adapter nut(s) (10).
10.
Using 5/8 inch open end wrench disconnect connector nut(s) (11) on injector pump.
11.
12.
Remove injector pipes (12) and oil seal(s) with retainer (13). Discard oil seal(s).
Cover injector pump connector(s) (14) to eliminate dirt contamination.
13.
14.
Using 1/2 inch socket and ratchet remove bolts(s) (15) securing injector(s) to cylinder head.
Remove injectors (16). If copper washer (17) does not dome out of injector remove it from injector port. (Take care
15.
no dirt falls into injector port.)
Cover injector ports to eliminate dirt contamination.
16.
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