TM 5-4310-452-14
5-20. FUEL INJECTION PUMP REPLACEMENT.
This Task Covers:
a. Removal
b. Installation
Initial Setup:
Equipment Conditions:
Materials/Parts:
• Metering fuel pump removed (see para-
• One preformed packing
graph 4-22).
• One self-locking nut
• Solenoid valve removed (see paragraph 4-59).
• Four lockwashers
Idler pulley assembly removed (see para-
graph 4-35)
Tools/Test Equipment:
• Battery cables disconnected (see paragraph
• General mechanic's tool kit
4-57).
a.
REMOVAL
1.
Remove screw (35), self-locking nut (33), and air cylinder assembly rod end (34) from throttle control lever (31).
Discard self-locking nut.
2.
Remove nut (29), lockwasher (30), and spring rod ball joint (32) from throttle control lever (31). Discard lockwasher.
3.
Remove 2 capscrews (28) and engine stop cable bracket (27) and clamp (26) from engine block.
4.
Loosen screw (24) and remove engine stop cable (25) from pin (23).
5.
Remove fluid passage bolt (17), 2 washers (18), and oil line (16) from fuel injection pump (4).
6.
Remove fuel injector lines (3) from fuel injection pump (4).
7.
Remove fluid passage bolts (1 and 21) and 4 washers (2 and 19) from fuel lines (20 and 22) and fuel injection pump
(4).
8.
Set No. 1 piston at top dead center (see paragraph 5-4).
9.
Remove 3 bolts (10), lockwashers (9), and washers (8) from injection pump drive gear (7). Discard lockwashers.
10. Remove 4 nuts (15), washers (14), fuel injection pump (4), and preformed packing (5). Discard preformed
packing.
11. Remove nut (11), washer (12), and hub (6) from fuel injection pump (4).
b.
INSTALLATION
1.
Install hub (6) on fuel injection pump (4) with washer (12) and nut (11).
2.
Aline slotted holes of fuel injection pump (4) with engine center studs (13), and install fuel injection pump and new
preformed packing (5) with 4 nuts (15) and washers (14).
3. Position injection pump drive gear (7) in place on fuel injection pump (4) and install 3 bolts (10), new lockwashers (9),
and washers (8).
5-44
