TM 5-3805-298-23-4
0405
A/C SYSTEM PERFORMANCE TEST
000405
WARNING
This system is under pressure at all times, even if the engine is not running. Heat should
never be applied to a charged system.
Contact with refrigerant can cause frostbite. Keep hands and face away to prevent
personal injury.
Protective goggles must always be worn when refrigerant lines are opened, even if the
gauges indicate the system is empty of refrigerant.
Always use caution when a fitting is removed. Slowly loosen the fitting. If the system is still
under pressure, evacuate the system recovering the refrigerant before removing the
fitting.
Do not smoke when servicing air conditioners or wherever refrigerant gas may be present.
Before any checks of the air conditioning and heating system are made, move the
machine to a smooth horizontal surface. Lower all implements to the ground. Make sure
the machine is in neutral or park and that the parking brake is engaged. Keep all other
personnel away from the machine or where they can be seen.
Failure to follow these warnings may result in injury or death to personnel.
NOTE
Ambient temperature must be at least 70F (21C) in order to conduct A/C performance
test.
0405-9
