TM 5-5420-280-23&P
0110 00
ENGINE FUEL INJECTION PUMP REPLACEMENT (Contd)
CAUTION
Cap or plug all hoses, tubes, connections, and openings immediately
after disconnection to prevent contamination. Remove caps or plugs
prior to installation. Failure to do so may result in damage to
equipment
REMOVAL
1.
Remove three capscrews (8), nut (9), governor plate (7), and gasket (6) from crankcase (2). Discard
gasket (6).
2.
Remove cotter pin (5) and end of governor lever (4) from control rack (3) of injection pump (19).
Discard cotter pin (5).
3.
Loosen nuts (10), (13), (27), and (28) and remove fuel pressure pipe assemblies (11) and (12) from
fuel injectors (14) and (15) and injection pump fittings (26) and (30).
4.
Remove fluid passage bolt (22), two seal washers (21), return hose (31), nipple (23), adapter (24), two
gaskets (25), and fitting (20) from injector pump (19). Discard seal washers (21) and gaskets%(25).
5.
Remove four nuts (29) from injection pump studs (16).
NOTE
To remove injection pump from crankcase, control rack of injection
pump must be positioned under cutout in crankcase
6.
Position control rack (3) of injection pump (19) under cutout (17) in crankcase (2), and remove
injection pump (19) and gasket(s) (18) from crankcase (2). Discard gasket(s) (18).
INSTALLATION
NOTE
The thickness of the gasket(s) to be installed is determined by the
number stamped on the side of the crankcase next to the injection
pump. For example, if the number "6" is stamped on the crankcase,
the total thickness of the gaskets should be 0.60 mm. Gaskets come
in sets of three gaskets of varying thickness.
1.
Install enough new gaskets (18) on crankcase (2) to reach thickness indicated by number stamped
on crankcase (2).
NOTE
To install injection pump in crankcase, control rack of injection
pump must be positioned under cutout in crankcase
2.
Position control rack (3) of injection pump (19) over cutout (17), and install injection pump (19) in
crankcase (2). Turn flywheel (1) to allow injection pump (19) to sit all the way down in opening.
3.
Install four nuts (29) on studs (16).
4.
Install fuel pressure pipe assemblies (11) and (12) on fuel injectors (14) and (15) and injection pump
fittings (26) and (30) and tighten nuts (10), (13), (27), and (28) .
5.
Install two new gaskets (25) and fitting (20) on injector pump (19) with adapter (24). Tighten
adapter (24) to 26 ft-lb (35 Nm).
6.
Install two new seal washers (21), return hose (31), and nipple (23) on adapter (24) with fluid
passage bolt (22). Tighten fluid passage bolt (22) to 18.5 ft-lb (25 Nm).
7.
Install end of governor lever (4) on control rack (3) of injection pump (19) with new cotter pin (5).
8.
Install new gasket (6) and governor plate (7) on crankcase (2) with nut (9) and three capscrews (8).
CAUTION
Never use starting fluid (ether) to assist starting LPU. Failure to
comply will result in damage to engine.
9.
If necessary, operate fuel priming pump. Refer to TM 5-5420-280-10.
10.
Run engine briefly to check for leaks. Refer to TM 5-5420-280-10.
0110 00-2
