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ARMY TM 9-4120-381-14
NAVY EE-000-CA-MMA-010/7053-AC
AIR FORCE TO 35E9-136-31
5-10.
EVAPORATOR MOTOR (B1).
This task covers: Service
INITIAL SETUP
Tools:
Tool kit, service, refrigeration unit (Item 1, Appendix B)
Gloves, chemical (Appendix C)
Goggles, industrial (Appendix C)
Personnel: 1
WARNING
DANGEROUS CHEMICAL (R-22) is used in this equipment.
DEATH
or severe damage may result if personnel fail to observe safety precautions. 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.
REFRIGERANT UNDER PRESSURE
is used in the operation of this equipment.
DEATH
or severe Injury may result if you fall to observe safety precautions. Never use a heating torch on
any part that contains R-22 refrigerant. Do not let liquid refrigerant touch you, and do not Inhale
refrigerant gas.
REPAIR
1.
The refrigeration system must be totally discharged before performing any maintenance action that requires
opening of the pressurized system (para 5-12).
2.
The drier filter replacement and leak testing are required after any system component has been removed and re-
placed (para 5-26 and para 5-15).
3.
The system must be evacuated before it is charged (para 5-16).
4.
The system must be properly charged to function properly (para 5-17).
5-17
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