AIR CONDITIONING SYSTEM REFRIGERANT (R-134A) MAINTENANCE - CONTINUED
CHARGING - CONTINUED
If a charge did not enter system, place tank (bulk container) in upright position, then open LOW SIDE valve to
draw vapor into system; leave valve open until correct weight of refrigerant has entered system, then close low side
If refrigerant is slow to enter system because of low outside temperatures, vaporization can be quickened by
placing refrigerant tank in a tub of warm water, no warmer than 125F (52C).
Disconnect high side hose. With engine running, open low side and high side hose valves to recover refrigerant from
Shut down engine.
Leak test air conditioning system (TM 9-2320-302-20).
Check operation of air conditioning system (TM 9-2320-302-10).
END OF WORK PACKAGE