TM 5-4310-247-15
Section IX.
FUEL SYSTEM
70. Air Cleaner Repair and
Replacement
spots, damaged threads, wear, or
other damage.
(3) Inspect the cap, filler tube, and gage
sender for breaks, cracks, tears, or
other damage.
(4) Paint all surfaces where the paint has
been removed or damaged. Refer to
If NBC exposure is suspected, all air filter media
TB 740-93-2 for detailed cleaning and
should be handled by personnel wearing protec-
painting instructions.
tive equipment. Consult your unit NBC Officer or
NBC NCO for appropriate handling or disposal
(5) Replace all damaged or unserviceable
instructions.
parts
a. Removal. Refer to figure 16 for removal
c. Installation.
(1) Install nipple (10), elbows (9 and 7),
and disassembly of the air cleaners.
nipple (3), shutoff cock (2) and
b. Cleaning and Inspection.
elbow (1).
(1) Clean parts except element with an ap-
(2) Install tank using spacers (15 and 16),
proved cleaning solvent and dry thor-
antisqueak (17 and 18), straps (13
oughly.
and 14), washers (12), and nuts (11).
(2) Service the filter element (para 40).
(3) Connect tube assemblies (5 and 8) to
(3) Inspect for dents, tears, worn threads
the tank.
or other damage. Replace any dam-
(4) Install fuel level gage sender, filler
aged parts.
tube, and cap on the fuel tank.
c. Reassembly and Installation. Refer to fig-
ure 16 for reassembly and installation of the
air cleaners.
a. Turn engine over until the number 1 piston
is on the compression stroke and the pointer
71. Fuel Tank, Lines, and Fittings
seen through the flywheel housing hole is read-
a Removal and Disassembly.
ing 25 (for 1,800 rpm governed speed).
(1) Open shutoff cock (2, fig. 22) and
Note. Make certain number 1 piston is on compres-
drain the fuel into a suitable con-
sion stroke by turning both push rods by hand indicat-
tainer.
ing that valves are closed.
b. Remove timing hole cover from pump
(2) Disconnect tube assemblies (5 and 8)
housing and check if the timing mark on the
at the fuel tank.
drive plate lines up with the mark on the cam
(3) Remove nuts (11), washers (12),
ring (fig. 23).
straps (13 and 14), antisqueak (17 and
c. If adjustment is required, loosen mounting
18), and spacers (15 and 16).
nuts and turn pump housing by hand so that
(4) Lift out fuel tank assembly and re-
timing marks line up.
move elbow (1), shutoff cock (2), nip-
d. Turn engine over two revolutions and re-
ple (3), elbows (9 and 7), and nip-
check to make sure all backlash is eliminated
ple (10).
in gear train.
(5) Remove cap (20) and filler tube (21)
Caution: Do not attempt to time or move
from filler neck (22). Disconnect and
pump while engine is running.
remove fuel level gauge sender from
fuel tank (19).
73. Secondary Fuel Filter
b. Cleaning and Inspection.
a. Removal.
(1) Clean the fuel tank, straps, and fuel
(1) Remove screw (3, fig. 24), and gasket
line assembly with a cloth dampened
(4) from head (1).
with an approved cleaning solvent.
(2) Remove head gasket (5) and cartridge
(6) from body assembly (7). Discard
(2) Inspect the fuel tank, straps, and fuel
lines for dents, cracks, breaks, rust
the cartridge.
Change 4 41