ARMY TM 9-4120-380-14
AIR FORCE TO 35E9-136-21
Tool kit, service, refrigeration unit (Item 1, Appendix B)
Disconnect input power to the air conditioner before performing any internal
maintenance. Voltages used can KILL Shutting the unit off at the control panel does not
disconnect unit power
Disconnect air conditioner input power at source, and
Death or serious injury may result if personnel fail to observe safety precaution;. Use
great care to avoid contact with liquid refrigerant or refrigerant gas being discharged
under pressure. Sudden and irreversible tissue damage can result from freezing. Wear
thermal protective gloves and a face protector or goggles in any situation where skin-
eye-contact is possible.
Prevent contact of refrigerant gas with flame or hot surfaces. Heat causes the refrigerant to break down and form
carbonyl chloride (phosgene), a highly poisonous and corrosive gas.
Remove discharge and suction gauge caps.
Connect service manifold high pressure hose (red) to compressor discharge valve.
Connect service manifold low pressure hose (blue) to compressor suction valve.
Frontseat (clockwise) compressor suction service valve.
Frontseat (clockwise) compressor discharge service valve.
Remove service manifold hoses from compressor.