TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 2 Download
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TM9-2320-387-24-2 18-3. 200~AMPERE DUAL VOLTAGE ALTERNATOR TESTING AND REPAIR This task covers: a. Alternator Output Testing b. Disassembly c. Static Testing d. Cleaning e. Assembly INITIAL SETUP: TestEquipment Multimeter (Appendix B, Item 155) Test stand (Appendix B, Item 56) Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Puller (Appendix B, Item 54) Materials/Parts Silicone compound (Appendix C, Item 75) RTV sealant (Appendix C, Item 74) Locknut (Appendix G, Item 175) Eighteen locknuts (Appendix G, Item 176) Three lockwashers (Appendix G, Item 191) Welve locknuts (Appendix G, Item 177) Locknut (Appendix G, Item 172) Lockwasher (Appendix G, Item 239) Lockwasher (Appendix G, Item 205) Locknut (Appendix G, Item 112) PersonnelRequired One mechanic One assistant Manual References TM 9-2320-387-24P TM 9-4910-663-12 TM 9-4910-485-12 EquipmentCondition Alternator removed (para. 4-5). General Safety Instructions Always support alternator core and shaft assembly during removal and installation. Maintenance Level Direct support a. Alternator Output Testing 1. 2. 3. 4. 5. 6. Mount pivot arm of 500-amp test stand 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. Mount alternator to starter/alternator mounting bracket on 500-amp test stand. Connect belt from 500~amptest stand pulley to alternator pulley. Adjust belt tension. Connect cable from alternator ground terminal to 500-amp test stand G- terminal. Connect cable from alternator battery terminal to 500-amp test stand G+ terminal. Connect cable from alternator regulator IGN to 500-amp test stand F terminal. Install voltage regulator (para. 4-8). Connect 28VDC output and 14VDC output to test stand. Auxiliary voltage and current meters may be required to measure 14VDC output. Fabricate a jumper wire with a ring terminal at both ends. Connect jumper wire on 500~amp test stand from IGNITION SWITCH terminal to F-B terminal. 18-2