TM-9-2330-356-14
SEMITRAILER, TANK: 5000 GALLON, BULK HAUL, SELF LOAD/UNLOAD M967 AND M967A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, AUTOMOTIVE M969 AND M969A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, UNDER/OVERWING AIRCRAFT M970 AND M970A1
TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1990
TM-9-2330-356-14 - Page 260 of 528
TM 9-2330-356-14
(2)
Primary and Secondary Fuel Filters
(fig. 4-102).
(a)
Place a suitable container under fuel
filters to collect any fuel.
(b)
Remove drain plugs and drain fuel into
containers.
(c)
Remove bolt and lockwasher (fig. 4-102)
and remove filter. Dispose of contaminated filters.
(d)
Place new filter in position and tighten
bolt until gasket touches base. Then tighten bolt an
additional
1½
to 2 turns.
d.
Replacement of Electric Fuel Pumps. The
fuel
pumps are located at left rear side of engine and are
mounted on the rear firewall (fig. 4-104).
TA099844
Figure 4-104. Location of Fuel Pumps.
(1)
Removal.
(a)
Tag isconnect fuel lines from fuel
pump. Keep fuel lines clean. Plug lines to prevent
contamination.
(b)
Remove two self-locking nuts,
lockwashers, and capscrews that mount fuel pump to
firewall. Remove fuel pump.
fuel pump.
(2) Installation. Install fuel pump in reverse order
of steps
(a)
through
(c).
4-124
(c)
Tag and disconnect electrical lead from
e.
Replacement of Fue[ Lines and Fittings.
All fuel
lines are hose assemblies. Simply remove line that needs
replacement, and replace with a new line assembly. See
figure 4-105 for location of all hose assemblies and
fittings.
f.
Replacement of Fuel Tank.
(1) Drain fuel tank (b above).
(2) Remove two upper fuel lines, elbows, and
bushings from top of fuel tank (fig. 4-105).
(3) Remove four screws and washers that fasten
fuel tank straps. Disconnect ground cable.
(4) Remove straps and fuel tank.
(5) Remove ground cable from tank.
(6) Replace fuel tank in reverse order of steps (2)
through (5).
(7) Fill fuel tank with proper fuel (para 2-10).
g.
Bleeding Fuel System.
Before initial start, or after
replacing fuel filters, fuel fines, fuel tank, or fuel pumps,
bleed the fuel system of air:
(1) Disconnect/loosen the fuel return line at top
of injector pump (fig. 4-105).
(2) Turn engine switch to RUN to energize the
electrical system and fuel pumps.
(3) Allow the fuel pumps to run until there are no
air bubbles in the fuel flowing from the fuel return line
fitting.
(4) Connect the fuel return line.
4-74. Air Cleaner
a.
Removal (Fig. 4-106).
(1) Loosen clamp on engine air intake hose at air
cleaner and disconnect hose from air cleaner.
(2) Open straps on air cleaner (fig. 4-106) and
remove air cleaner.
b.
Installation (Fig. 4-106).
(1) Install air intake hose on air cleaner outlet
and tighten clamp.
(2) Install air cleaner in mounting straps. Tighten
straps.
(3) Tighten hose clamp.
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