TB-9-2510-251-13
TECHNICAL BULLETIN
OPERATOR AND FIELD MAINTENANCE; INSTALLATION MANUAL (INCLUDING REPAIR PARTS LIST); FOR ADD-ON-ARMOR (AoA) AIR CONDITIONING
AUGUST 2007
TB-9-2510-251-13 - Page 298 of 624
4-22
TB 9-2510-251-13
4-14
Air Conditioning System Servicing
This task covers:
a. Discharge Air Conditioning System
b. Purge Air Conditioning System
c.
Charge Air Conditioning System
INITIAL SETUP
Equipment Conditions:
Materials/Parts:
Engine Shut Down (TM 9-2320-280-10)
R134A Refrigerant (Item 8, Appendix D)
Hood Raised and Supported (TM 9-2320-280-10)
Oil, Refrigerant (Item 6, Appendix D)
Tools and Test Equipment:
Personnel Required:
General Mechanic’s Tool Kit (Item 1, Appendix B)
(1) MOS 52C - Utilities Equipment Repairer
Refrigeration Tool Kit (Item 4, Appendix B)
General
When the air conditioning system must undergo initial service or maintenance that requires opening
the system, the system must be discharged prior to maintenance and purged and charged after
maintenance.
a. Discharge Air Conditioning System
WARNING
Since the beginning of 1992, the EPA has required that any refrigerant removed
from an AC system be recovered and recycled before reuse.
The refrigerant must
be contained in an externally sealed container when undergoing recovery/recycle
procedures to ensure environmentally safe processing.
Failure to comply could
result in injury to personnel and/or damage to equipment.
CAUTION
•
It is important to run the vacuum pump long enough to insure the removal of any
moisture that may be in the system.
Failure to comply could result in damage
to equipment.
•
To prevent excess loss of oil, discharge system slowly over a period of two
hours.
Failure to comply could result in damage to equipment.
NOTE
When installing gauge, note that RED is high side and BLUE is low side.
Back to Top
