TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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1. Remove two capscrews (17), lockwashers (18), washers (19), harness bracket (20), clamps (21), suction line (3), and discharge line (4) from body (5). Remove clamps (21) from suction line (3) and discharge line (4). Discard lockwashers (18). 2. Disconnect suction line (3) and discharge line (4) from fittings (1). Remove and discard two O-rings (2). 3. Remove three tiedown straps (6) and slide insulation (7) on suction line (3) and discharge line (4) away from suction hose (8) and discharge hose (9). Disconnect and remove suction line (3) and discharge line (4) from suction hose (8) and discharge hose (9). Discard tiedown straps (6). 4. Remove nut (15), lockwasher (14), washer (11), capscrew (10), clamp (16), suction hose (8), and discharge hose (9) from underside of body (13). Remove seven tiedown straps (12) securing suction hose (8) and discharge hose (9) together. Remove clamp (16) from suction hose (8) and discharge hose (9). Discard lockwasher (14) and tiedown straps (12). 5. Remove and discard insulation (7) from suction hose (8) and discharge hose (9). 14-18. AIR-CONDITIONING PRESSURE LINES REPLACEMENT This task covers: a. Removal b. Installation Applicable Modelss ________________ M997, M997A1, M997A2 Tools ____ General mechanic's tool kit: automotive (Appendix G, Item 1) Materials/Parts ____________ Four O-rings (Appendix E, Item 100) Ten tiedown straps (Appendix E, Items 210) Three lockwashers (Appendix E, Item 72) Insulation (Appendix B, Item 26) Lubricating oil (Appendix B, Item 35) (R-12 only) Lubricating oil (Appendix B, Item 35.1) (FR-12 only) Personnel Required ________________ One mechanic One assistant Manual References _______________ TM 9-2320-280-20 TM 9-2320-280-24P Equipment Condition ________________ • Air-conditioning system discharged (para. 14-17). • Companion seat removed (TM 9-2320-280-20). • Air horn hose removed (TM 9-2320-280-20). General Safety Instructions _____________________ Air conditioner system must be discharged, prior to replacing components. Maintenance Level _______________ Direct support INITIAL SETUP: ________ 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. a. Removal NO T E • All air-conditioning pressure lines are replaced basically the same. This procedure covers the A/C compartment to compressor lines. • Suction line has a larger diameter than the discharge line, fittings will not interconnect. TM 9-2320-280-34 14-102 Change 1