TM 9-2320-280-34
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Applicable Models
Manual References
M997, M997A1
TM 9-2320-280-20
TM 9-2320-280-24P
Tools
Equipment Condition
General mechanic's tool kit:
Air-conditioning system discharged
automotive (Appendix G, Item 1)
Materials/Parts
Evaporator blower housing opened
Three O-rings (Appendix E, Item 132)
(TM 9-2320-280-20).
Nonmetallic seal (Appendix E, Item 215)
General Safety Instructions
Lubricating oil (Appendix B, Item 35)
Air conditioner system must be discharged prior
to replacing components.
Maintenance Level
Direct support
a. Removal
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.
CAUTION
Cover or plug all open hoses and connections immediately after
disconnection to prevent contamination. Remove all plugs prior to
connection.
NOTE
The following procedure applies to vehicles with R-12 refrigerant only.
Refer to para. 14-27.5 for vehicles with R-134a refrigerant.
1.
Remove nonmetallic seal (2) from evaporator outlet tube (1). Discard nonmetallic seal (2).
2.
Loosen clamp (3) and slide control tube (10) from clamp (3).
3.
Disconnect expansion valve pressure tube (8) from evaporator outlet tube (1) and remove O-ring (11).
Discard O-ring (11).
4.
Deleted.
5.
Deleted.
6.
Disconnect expansion valve (7) from sight glass line (5) and remove O-ring (9). Discard O-ring (9).
7.
Disconnect and remove expansion valve (7) from inlet tube (4) and remove O-ring (6). Discard
O-ring (6).
Change 2
