TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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This task covers: a. Alternator Output Testing d. Cleaning b. Disassembly e. Assembly c. Static Testing a. Alternator Output Testing 1. Mount 500-amp test stand pivot arm to high-speed side and install mounting flange adapter on pivot arm. Connect pulley driveshaft to high-speed head. Install pulley driveshaft on mounting flange adapter. 2. Position adapter mount (1) to bracket (9) on test stand. 3. Install adapter mount (1) on bracket (9) with washer (3), screw (2), washer (3), and nut (8). Do not tighten screw (2). 4. Loosen locking handle (10) on bracket (9), raise bracket (9) to highest point, and tighten locking handle (10). 5. Install support plate (4) on adapter mount (1) with two washers (5), screws (6), washers (5), and nuts (7). Do not tighten nuts (7). 6. Install two V-belts (11) on driver pulley (12) on alternator/generator/starter test stand. 7. Position alternator (25) on adapter mount (1) and install two V-belts (11) on pulley (15). 8. Position two washers (22) between rear lower mount (24) on alternator (25) and adapter mount (1), and install washer (21), screw (23), washer (21), and nut (20). Do not tighten nut (20). 9. Align front lower mount holes (16) on alternator (25) and adapter mount (1) and install washer (18), screw (19), washer (18), and nut (17). Do not tighten nut (17). 10. Align top mount hole (26) on alternator (25) and adapter mount (1) and install two washers (13) and screw (14). 11. Tighten nuts (20) and (17) to 40 lb-ft (54 N•m). INITIAL SETUP: Applicable Models M996, M996A1, M997, M997A1, M997A2 Tools General mechanic’s tool kit: automotive (Appendix G, Item 1) Puller (Appendix G, Item 136) Test Equipment Multimeter (Appendix G, Item 120) Test stand (Appendix G, Item 94) Materials/Parts RTV sealant (Appendix B, Item 43) Silicone compound (Appendix B, Item 57) Locknut (Appendix E, Item 65.2) Locknut (Appendix E, Item 63) Eighteen locknuts (Appendix E, Item 65.1) Twelve locknuts (Appendix E, Item 65) Twelve lockwashers (Appendix E, Item 92.1) Two lockwashers (Appendix E, Item 88) Two seals (Appendix E, Item 148.2) Personnel Required One mechanic One assistant Manual References TM 9-2320-280-20 TM 9-2320-280-24P TM 9-4910-663-12 TM 9-4910-485-12 Equipment Condition Alternator removed (TM 9-2320-280-20). General Safety Instructions Always support alternator core and shaft assembly during removal and installation. Maintenance Level Direct support TM 9-2320-280-34 6-44.12 Change 1 6-5.2. 400 AMPERE DUAL VOLTAGE ALTERNATOR (12469057) TESTING AND REPAIR