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TM 5-4320-306-24
4-4. REPAIR INJECTION PUMP (Continued)
35 Remove and discard preformed packing (46).
36 Remove two screws (47) and two sealing rings (48) from housing
37 Loosen bearing cap, camshaft, and bearing assembly by tapping governor end of camshaft with a rubber mallet
Remove bearing cap, camshaft, and bearings as an assembly
38 Remove six screws (49) and six washers (50).
CAUTION
In the following step, tap housing straight back from fuel
injection pump. The camshaft bearing support may break
off if housing is twisted while being removed.
39. Carefully remove housing (51) from injection pump by tapping with rubber mallet
40. Remove and discard gasket (52)
41. Remove screw plug (53).
42. Remove six lock fasteners (54) using breast wrench KDEP 2887.
43. Remove roller tappet assembly (55).
a.
Push against one roller tappet assembly (55) using tappet tongs KDEP 2941 to relieve spring force on tappet
holder
b.
Remove tappet holder
c.
Pull roller tappet assembly (55) through housing bore from bottom of housing using a second tappet tongs
d.
Remove roller tappet assembly (55) from tappet tongs
e.
Tag roller tappet assembly (55) to indicate the bore from which the assembly was removed.
4-9
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