TM 9-2320-280-34
This task covers:
a. Preliminary Inspection and Cleaning
c. Inspection
b. Disassembly
d. Assembly
INITIAL SETUP:
Applicable Models
Manual References
M997, M997A1
TM 9-2320-280-24P
Tools
Equipment Condition
General mechanic's tool kit:
Air-conditioning compressor removed
automotive (Appendix G, Item 1)
Test Equipment
General Safety Instructions
Multimeter (Appendix G, Item 120)
Compressed air for cleaning purposes will
not exceed 30 psi (207 kPa).
Special Tools
Compressor cylinder block may be
Compressor tool kit (Appendix G, Item 102)
pressurized.
Materials/Parts
Maintenance Level
O-ring (Appendix E, Item 130)
Direct support
Seal kit (Appendix E, Item 48)
Gasket kit (Appendix E, Item 39)
Direct clutch parts kit (Appendix E, Item 154)
Lubricating oil (Appendix B, Item 35)
NOTE
The following procedure applies to vehicles with R-12 refrigerant
only. Refer to para. 14-27.1 for vehicles with R-134a refrigerant.
a. Preliminary Inspection and Cleaning
1.
Inspect front of compressor shaft (6) for oil leakage. If oil leakage is evident, replace compressor
shaft seal.
WARNING
Compressed air for cleaning purposes will not exceed 30 psi
(207 kPa). Use only with effective chip guarding and personal
protective equipment (goggles/shield, gloves, etc.).
2.
Clean compressor assembly with lubricating oil and dry with compressed air.
WARNING
Compressor cylinder block may be pressurized. Loosen oil filler
plug slowly. If sound of escaping gas is heard, do not continue
loosening plug until all pressure is released.
3.
Loosen oil fill plug (3) to relieve any pressure buildup in compressor cylinder block (1).
4.
Rotate compressor shaft (6) with ratchet and socket on compressor shaft nut (5). If severe rough
spots or catches are felt while rotating shaft (6), replace compressor assembly.
5.
Remove oil fill plug (3) and O-ring (4) from compressor cylinder block (1) and drain oil from cylinder
block (1) into measuring container. Discard O-ring (4). Record amount of oil in measuring container.
6.
Install O-ring (4) and fill plug (3) in cylinder block (1) and tighten fill plug (3) finger tight.
7.
Inspect oil for chips, metal shavings, and metal particles. Replace compressor assembly if chips,
metal shavings, or metal particles are present in oil.
b. Disassembly
CAUTION
Do not clamp compressor body in vise. Clamp or support only at
mounting ears, with blocks of wood, to prevent damage to
compressor body.
Change 2
