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 TM 5-1940-277-20
TM 1940-20/2
5.
Clean area around fuel injectors prior to removal.
6.
Apply a light coating of dry cleaning solvent around base of injectors (3) and cylinder head (4). Let
stand for 3 minutes before removing.
CAUTION
Use care when tapping the injector to loosen rust. Failure to
comply may result in damage to equipment.
NOTE
Have container ready to catch fuel.
8.
Using a 3/4 wrench, hold injector (3), using a 7/8 wrench, loosen nut (1), and remove injector (3) from
cylinder head (4).
CAUTION
ONLY perform steps 9 thru 11 if injector is difficult to remove.
Failure to comply may result in damage to equipment.
9.
Remove gasket (2) from injector (3) and attach injector puller. Discard gasket (2).
10.
Fill bore (6) around injector (3) with dry cleaning solvent.
11.
Pull injector out as far as possible; use the injector puller slide out hammer to tap against the puller
nut.
12.
Drive the injector (3) into the bore (6) allowing dry cleaning solvent to penetrate to the injector
tip (7) and loosen carbon deposits.
13.
Clean cylinder head (4) with injector cleaning brush.
14.
Remove saddle washer (5) from injector (3). Discard saddle washer (5).
Change 2
3-272.1
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