TM 9-2320-280-34
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Applicable Models
Equipment Condition
M997A2
Air-conditioning system discharged
Tools
Air horn to air cleaner hose removed
General mechanic's tool kit:
(TM 9-2320-280-20).
automotive (Appendix G, Item 1)
General Safety Instructions
Materials/Parts
Air conditioner system must be discharged,
Four O-rings (Appendix E, Item 144)
prior to replacing components.
Lubricating oil (Appendix B, Item 35.2)
Maintenance Level
Tiedown strap (Appendix E, Item 252)
Direct support
Seal washer (Appendix E, Item 261)
Seal washer (Appendix E, Item 262)
Manual References
TM 9-2320-280-20
TM 9-2320-280-24P
WARNING
Air conditioner system must be discharged, prior to replacing
components in vapor system. Failure to do this may result in
injury to personnel or damage to equipment.
NOTE
Suction (low pressure) and discharge (high pressure) service
valves are replaced basically the same. This procedure covers
the suction service valve.
The following procedure applies to vehicles with R-134a
refrigerant only. Refer to Paragraph 14-25 for vehicles with
R-12 refrigerant.
a. Removal
1.
Remove tiedown strap (12) from harness leads (10) and high-pressure line (13). Disconnect
compressor clutch leads (11) from harness leads (10). Discard tiedown strap (12).
CAUTION
Cover or plug all open lines and connections immediately after
removal to prevent contamination. Remove all plugs prior to
connection.
2.
Remove high-pressure line (13) and low-pressure line (1) from service valves (3).
Remove and discard two O-rings (2).
3.
Loosen two nuts (4) on service valves (3) and remove service valves (3) and O-rings (6) from
compressor manifold (7). Discard O-rings (6).
4.
Remove screw (5), compressor manifold (7), and two seal washers (9) from A/C compressor (8).
Discard seal washers (9).
Change 2
