TM 5-3825-229-14&P
4-51. FUEL FILTER AND FUEL LINES (cont)
c.
Fuel Filter Lines (cont).
(2)
Installation.
(a)
Remove plug or cap from inlet port of fuel injection pump. Install adapter (11) in injection pump.
Tighten fuel filter base. Connect line (7) to adapter (1 1). Loosen fuel filter base. Tighten nut on
fuel line (7) to a torque of 18 Ib-ft (24 Nm) (wet).
(b)
Remove plug or cap from filter outlet. Connect fuel line (7) to outlet of fuel filter with grommet (10),
nut (9) and sleeve (8). Tighten nut to a torque of 18 !b-ft (24 Nm) (wet).
(c)
Remove plug or cap from fuel transfer pump outlet and fuel filter inlet. Install elbow (6)
to fuel transfer pump (12). Connect fuel line (3) to elbow (6) and to fuel filter inlet port
with sleeve (4) and nut (5). Tighten nut (5) and nut on elbow (6) to a torque of 18 Ib-ft (24
Nm) (wet).
(d)
Remove plug from fuel transfer pump inlet. Install elbow (2) in fuel transfer pump inlet. Connect
fuel hose (2) to elbow. Tighten nut on elbow to 18 Ib-ft (24 Nm) (wet).
(e)
Refer to para. 4-50 and connect fuel line from fuel tank to fuel hose (1).
(f)
Prime fuel system. Refer to para. 4-52.
d.
Fuel Return Lines.
(1)
Removal.
NOTE
Plug or cap all fuel line ports after disconnecting fuel lines. This is required to prevent dirt or foreign matter
from entering the fuel system.
(a)
Refer to para. 4-50 and disconnect fuel line to fuel tank from fuel injection pump tee (10).
Remove hose end (1) and elbow (2) from tee (10).
(b)
Remove plug (3) and leak-off line (4) from No. 4 fuel injector. Remove leak-off lines (5, 6 and 7)
from fuel injectors. Cap leak-off line connectors on fuel injectors.
(c)
Disconnect fuel leak-off line (8) from fuel injector and adapter (9). Cap fuel injector.
(d)
Remove adapter (9) and tee (10) from fuel injection pump. Plug inlet in injection pump.
4-108
