TM 5-3805-294-23-4
FIELD MAINTENANCE
AIR CONDITIONER LEAK TEST
INITIAL SETUP:
Tools and Special Tools
References
Refrigerant Leak Detector
DA FORM 5988-E or DA FORM 2404 (Volume 5,
(Volume 5, WP 0796, Table 2, Item 96)
WP 0794)
Materials/Parts
Equipment Condition
Machine safely parked and shut down
Rags, Wiping (Volume 5, WP 0797, Table 1, Item
(TM 5-3805-294-10). (Volume 5, WP 0794)
34)
Personnel Required
Utilities Equipment Repairer 91C (1)
INSPECTION
WARNING
Use care to prevent refrigerant from touching skin or eyes. Liquid refrigerant, when
exposed to air, quickly evaporates and will freeze skin or eye tissues. Failure to comply
may result in injury or death to personnel.
Do not attempt to apply compressed air to the internal components of refrigerant R-134a
air conditioning systems for pressure or leak test. Combustible mixtures of air and R-134a
may form resulting in a fire or explosion. Failure to comply may result in injury or death
to personnel.
Personnel with a history of cardiac rhythm abnormalities should be made aware of
potential aggravation as a result of exposure to refrigerant. Failure to comply may result
in injury or death to personnel.
NOTE
Refrigerant is odorless. As a result, it may leak and not be noticed until air conditioning
system stops cooling. All vehicle air conditioning systems lose some refrigerant
depending on condition of air conditioning system. Higher loss rates signal a need to
locate and repair leaks.
Leaks are most often found at compressor hose connections and at various fittings and
joints in the air conditioning system. If unapproved hoses are used, refrigerant can be
lost through hose penetration.
1.
Visually inspect air conditioning system for air conditioning oil leakage, corrosion, and damage to any
components.
0537-1