Fuel Injection Pump (cont). - TM-10-3930-638-24-P0586

TM 10-3930-638-24&P

3-6. FUEL SYSTEM MAINTENANCE (cont)

c. Fuel Injection Pump (cont).

ITEM

REMARKS

ACTION

STEP

LOCATION

REMOVAL

Fuel injection

pump (3)

NOTE

If the same injection pump is to be reinstalled, scribe small match

marks on injection pump flange and timing gear housing to aid in

installation.

Loosen and

Support pump (3)

a. Three nuts (1) and

washers (2)

remove

Carefully pull off of drive shaft (15)

b. Injection pump (3)

Remove

Remove and

c. O-ring (4)

discard

Remove and

a. Two seals (5)

Timing gear

discard

housing

NOTE

The following steps cover removal of drive shaft (15) and drive

gear (14). If injection pump is to be replaced, drive shaft (15) must

be forwarded to general support maintenance with defective

pump. If only O-ring (4) and seals (5) require replacement,

proceed to step 14.

Loosen and

b. Seven cap screws (6)

remove

and two nuts (7)

From engine timing gear housing

Remove

c. Cover plate (8)

Remove all gasket residue from timing

Remove and

d. Gasket (9)

gear housing and cover plate (8)

discard

e. Thrust plunger (10)

Pull and

remove

and spring (11)

f. Nut (12) and lock

Loosen and

washer (13)

remove

From drive shaft (15)

Remove

g. Drive gear (14)

NOTE

Replacement drive shaft (15) includes roll pin (16). Perform the

following step only if roll pin (16) is sheared and drive shaft (15)

is- not damaged.

From drive shaft (15). Use 3/32 inch drift

Remove

h. Roll pin (16)

or carbide tipped drill bit

3-80