TM 9-4120-399-14
a. Preliminary procedure.
( 1 ) Remove access cover.
(2) Unscrew hose connection protective caps.
WARNING
Death or serious injury may result if personnel fail to observe safety precautions.
Use great care to avoid contact with liquid rcfrigerant or refrigerant gas being
discharged under pressure. Sudden and irreversible tissue damage can result f'rom
freezing. Wear thermal protective gloves and a face protector or goggles in any
situation where skin-eye-contact is possible.
WARNING
Prevent contact of refrigerant gas with flame or hot surfaces. Heat causes refriger-
ant to break down and form carbonyl chloride (phosgene). a highly poisonous and
corrosive gas.
NOTE
In accordance with Environmental Protection Agency regulations refrigerants
cannot be discharged into the atmosphere. A refrigerant recovery & recycling unit
must be used whenever discharging the refrigerant system.
(3) Connect the charging manifold hoses to the manifold and air coconditioner services valves.
(4) Attach a hose assembly to the center conection of the manifold.
NOTE
Operation of the recovery/recycling unit must be by AUTHORIZED PERSON-
NEL ONLY
(5) Connect and operate a recovery/recycling unit in accordance with the manufacturer's instructions.
Change 2 5-7
