8
TM 5-3805-290-23-2
AIR CONDITIONING SYSTEM SERVICE
THIS WORK PACKAGE COVERS
Recovery, Evacuation, Charging
INITIAL SETUP
Maintenance Level
Personnel Required
Direct Support
MOS 52C, Utilities Equipment Repairer
Tools and Special Tools
Equipment Conditions
Tool kit, general mechanic's (Item 96, WP 0205 00)
Machine parked on level ground (TM 5-3805-290-
10)
Shop equipment, automotive maintenance and
repair: field maintenance, basic, less power (Item
Work tool lowered to ground (TM 5-3805-290-10)
75, WP 0205 00)
Parking brake engaged (TM 5-3805-290-10)
Reclaimer, refrigerant (Item 70, WP 0205 00)
Wheels chocked
Materials/Parts
Battery disconnect switch in OFF position (TM 5-
3805-290-10)
Oil, lubricating, refrigerant compressor (Item 37,
Estimated Time to Complete Task
Tetrafluoroethane, technical (Refrigerant, R-134a)
43 lb cyl (Item 58, WP 0206 00)
2.0 hr
WARN I N G
Take care to prevent refrigerant from touching your skin or eyes. Liquid refrigerant, when exposed to
air, quickly evaporates and will freeze skin or eye tissue. Use protective gloves and goggles. Serious
injury or blindness may result if you come in contact with liquid refrigerant.
Refrigerant R-134a air conditioning systems should not be pressure tested or leak tested with com-
pressed air. Combustible mixtures of air and R-134a may form, resulting in a fire or explosion, which
could cause injury or death to personnel.
DO NOT work in an area where refrigerant may contact an open flame or burning material such as a
cigarette. When refrigerant contacts extreme heat, refrigerant breaks down into poisonous phosgene gas
which, if breathed, causes severe respiratory irritation. DO NOT breathe fumes from an open flame leak
detector.
