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 TM5-4110-234-14
TO 40R7-5-7-1
DO NOT smoke or use an open flame in the vicinity of the engine or fuel tank. Internal combustion
engine fuels are highly flammable.
a. Inspection.
(1)
Turn refrigerator on-off switch to off. Disconnect at the battery if there is any chance that the unit might get
turned on while you are inspecting the unit.
(2)
Check oil level and condition. See paragraph 4-14 for oil changing instructions.
(3)
Check for fuel and oil leaks.
(4)
Inspect the following items. See paragraphs referenced for specific instructions.
Alternator belt (para 4-60).
Alternator (para 4-61).
Air cleaner (para 4-62).
Choke (para 4-63).
Carburetor (para 4-64).
Governor (para 4-65).
Cooling shroud (para 4-66).
Oil filter (para 4-67).
Spark plugs (para 4-68).
Spark plug leads (para 4-68).
Points (para 4-69).
Starter (para 4-70).
Starter solenoid (para 4-71).
Spark advance (para 4-72).
(5)
Check block for cracks an d visible damage.
b. Test, Adjust and Repair. See specific paragraph for component of engine to be tested, adjusted or repaired.
c. Compression testing. (with warm engine)
(1)
Remove the spark plugs.
(2)
Insert a compression gage in one of the spark plug holes.
(3)
Crank the engine and record the reading indicated on DA Form 2404 (Equipment Inspection and
Maintenance Worksheet). The correct reading is 100-120 psi (690-810 kpa).
4-72
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