TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
Page 206 of 953
4-5.3. 100 AMPERE DUAL VOLTAGE ALTERNATOR (12447110) REPLACEMENT This task covers: a. Removal b. Installation a. Removal NOTE Prior to removal, tag leads for installation. 1. Remove screw (5), lockwasher (6), washer (7), ground strap (8), and lead 3B (9) from ground point (11). Discard lockwasher (6). 2. Slide back rubber boot (4) and remove nut (3), washer (2), and alternator positive cable (1) from positive stud (12). 3. Loosen screw (15) on alternator adjustment bracket (16) and remove drivebelt (14) from alternator pulley (13) on alternator (10). WARNING Alternator must be supported during removal. Failure to support alternator may cause injury to personnel or damage to equipment. 4. Remove screw (17) and washer (18) from alternator adjustment bracket (16). 5. Remove nut (19), lockwasher (20), washer (21), screw (26), washer (27), and alternator (10) from support bracket (28) and mounting bracket (29). Discard lockwasher (20). 6. Remove three capscrews (24), washers (25), bushings (22), and fan guard assembly (23) from alternator (10). 7. Remove alternator pulley (13) (para. 4-3). INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Maintenance and repair shop equipment: automotive (Appendix B, Item 2) Materials/Parts Lockwasher (Appendix G, Item 188) Two lockwashers (Appendix G, Item 172) Personnel Required One mechanic One assistant Manual References TM 9-2320-280-10 TM 9-2320-280-24P Equipment Condition • Hood raised and secured (TM 9-2320-280-10). • Battery ground cables disconnected (para. 4-73). • Engine access cover removed (para. 10-15). • Voltage regulator removed (para. 4-5.6). General Safety Instructions Alternator must be supported during removal and installation. TM 9-2320-280-20-2 4-12.6 Change 3