TM 5-3805-280-10
Operational Checkout
YES: Check complete.
ALL LINES AND HOSES
Engine OFF.
NO: Reposition hoses or
Inspect all lines and hoses.
lines and tighten or
replace clamps. Tighten
Are lines and hoses straight, NOT kinked or worn from rubbing on other machine parts
fittings or replace O-rings
or "weather checked"?
in fittings. Replace hoses
or lines as required.
Are hose and line connections clean NOT showing signs of leakage, such as oil or
dust accumulation at fittings?
All hose and line clamps must be in place and tight. Clamps must have rubber inserts
or cushions in place to prevent clamps from crushing or wearing into hoses or lines?
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EVAPORATOR CORE
Engine ON.
YES: Check complete.
CHECK
Blower switch on high.
NO: Repair, replace or
clean evaporator.
Is air from ducts cool and air flow good?
Is water dripping from evaporator drain hose?
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CONDENSER CHECK
Engine OFF.
YES: Check complete.
Inspect condenser cores.
NO: Clean, repair or
replace condenser core.
Is condenser core free of dirt or debris?
Replace engine fan.
Does condenser show signs of leakage, dust accumulation or oily areas?
Are condenser fins straight, not bent or damaged?
Inspect engine fan.
Are fan blades in good condition, not worn, bent, broken or missing?
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