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TM 5-4320-237-15
PAR
REF
ITEM
8
ENGINE. Turn the engine crankshaft with starting rope and
check for unusual noises or binding. Check that adequate com-
pression resistance is noted when cranking against compression.
AIR CLEANER. Empty and clean dust cup. Remove air cleaner
9
28f
body and flush out element with approved cleaning solvent. Shake
dry and replace. Fill and replace dust cup. Reference figure 11.
10
MAGNETO. Replace pitted or burned magneto points. Proper
55
gap adjustment is 0.015 inch. (Check adjustment every 500
operating hours. )
11
VALVES AND TAPPETS. Check valve tappet clearance. Tappet
66
clearance with engine cold must be as follows:
Inlet valve-0.008 inch Exhaust valve-0.014 inch Report in-
correct valve tappet clearance to direct support maintenance.
12
62
damage. Replace muffler if damaged beyond serviceability.
13
PUMP. Check pump for loose mounting, cracked housing, damaged
71
threads and missing plugs. Tighten loose mounting bolts and re-
place missile plugs. Report pump damage to direct support main-
tenance.
14
SUCTION HOSE. Check suction hose for cracks, leaks, breaks,
cuts, and wear. Replace leaking, worn, or damaged hose.
NOTE 1. OPERATIONAL TEST, During operation, check for
unusual noises or vibration.
Figure 13--Continued.
Section IV. OPERATOR'S MAINTENANCE
32. General
The instructions in this section are pub-
Refer to figure 14 and service the fuel
lished for the information and guidance of the
strainer.
operator to maintain the pumping assembly.
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