TM 9-2320-280-34
This task covers:
a. Removal
c. Assembly
b. Disassembly
d. Installation
INITIAL SETUP
Applicable Models
Manual References
M997A2
TM 9-2320-280-10
TM 9-2320-280-20
Tools
TM 9-2320-280-24P
General mechanic's tool kit:
Equipment Condition
automotive (Appendix G, Item 1)
Air-conditioning system discharged
Materials/Parts
Two O-rings (Appendix E, Item 133)
Evaporator blower motor housing removed
O-ring (Appendix E, Item 132)
(TM 9-2320-280-20).
O-ring (Appendix E, Item 131)
General Safety Instructions
O-ring (Appendix E, Item 143)
Air-conditioner system must be discharged,
Nonmetallic seal (Appendix E, Item 215)
prior to replacing components.
Lubricating oil (Appendix B, Item 35.2)
Maintenance Level
Direct support
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-134a
refrigerant only. Refer to Paragraph 14-20 for vehicles with R-12
refrigerant.
a. Removal
1.
Disconnect tube assembly (10) from sight glass line (8). Remove and discard O-ring (9).
2.
Disconnect low-pressure line (12) from evaporator outlet line (15). Remove and discard O-ring (13).
NOTE
Prior to removal, tag leads for installation.
3.
Disconnect two wires (11) from low-pressure switch (14).
CAUTION
Avoid kinking or excessive bending of cold control probe during
removal.
Evaporator coil and evaporator duct clearances are tight, avoid
forcing or twisting during removal.
4.
Remove cold control probe (7) from coils (3) and position probe (7) away from evaporator (2).
5.
Loosen clamp (5) and disconnect drain tube (6) from drain pan (4).
6.
Remove five screws (1) and evaporator (2) from evaporator duct (16).
14-134.18
Change 2
