DRAFT
TB 9-2320-364-13&P-1
AC DOES NOT COOL OR COOLS INADEQUATELY - Continued
WARNING
Moving engine components can cause severe injury. Keep away from fan, belts, and pulleys while
engine is running.
Wear protective goggles and nonleather gloves when servicing air conditioner system. Failure to
comply may result in injury to personnel.
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VISUAL INSPECTION
(1)
Connect AC test set recovery/recycling manifold
gages to AC service valves (WP 0053). Ensure
test set valves are closed.
(2)
Remove AC condenser dryer sight glass access
hole cover.
(3)
Start engine (TM 9-2320-364-10).
(4)
Operate AC system for 5 to 10 minutes at high
blower speed (WP 0004).
(5)
Inspect AC condenser dryer sight glass.
(a) If AC condenser dryer sight glass indicates
desiccant breakdown or oil in system:
1. Shut off engine (TM 9-2320-364-10).
2. Perform leak test (WP 0052).
3. Recover R-134a refrigerant (WP 0053).
4. Repair leaks found.
CAUTION: Do not flush AC condenser dryer, AC
compressor, or AC expansion valve. After flushing
system, add required refrigerant oil or damage to
equipment may result.
5. Flush system (WP 0053).
6. Replace AC condenser dryer (WP 0024).
7. Evacuate and charge system with new
R-134a refrigerant (WP 0053).
8. Start engine (TM 9-2320-364-10).
9. Operate AC system for 5 to 10 minutes at
high blower speed (WP 0004).
10. Go to Step 4 of this fault.
(b) If AC condenser dryer sight glass does not
indicate desiccant breakdown or oil in system,
go to Step 4 of this fault.
PLSAC204
