TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download
Page 623 of 1170
This task covers: a. Removal b. Installation a. Removal NOTE Prior to removal, tag leads for installation. 1. Slide back rubber boot (4) and remove capscrew (1), lockwasher (2), washer (3), and ground cable (5) from alternator (6). Discard lockwasher (2). 2. Slide back rubber boot (18) and remove nut (21), lockwasher (20), washer (19), alternator positive cable (17), nut (16.2), and washer (16.1) from positive stud (16). Discard lockwasher (20). NOTE • Perform steps 3 and 4 for 6.2 L engine only. • Perform step 5 for 6.5 L engine only. • In some cases, a thru-bolt and nut may be present on mounting bracket instead of standard capscrews and washers. 3. Loosen capscrews (11) and (13) on alternator adjusting bracket (8) and two capscrews (23) from alternator (6), alternator mounting bracket (25), and support bracket (24). NOTE All “A2” models except the M997A2 are equipped with serpentine belts. 4. Remove two drivebelts (7) from alternator pulley (14). 5. Position 3/8-inch breaker bar on belt tensioner (22), move tensioner (22) clockwise, and remove drivebelt (7) from alternator pulley (14). WARNING Alternator must be supported during removal and installation. Failure to support alternator may cause injury to personnel or damage to equipment. 6. Remove capscrew (11), lockwasher (10), and washer (9) from alternator (6) and adjusting bracket (8). Discard lockwasher (10). INITIAL SETUP: Applicable Models All models except M996, M996A1, M1026, M1026A1, M1097, M1097A1, M1097A2, M1123 Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Breaker bar, 3/8 in. (Appendix B, Item 2) Materials/Parts Lockwasher (Appendix G, Item 133) Lockwasher (Appendix G, Item 186) Lockwasher (Appendix G, Item 187) Two lockwashers (Appendix G, Item 188) Personnel Required One mechanic One assistant Manual References TM 9-2320-280-10 TM 9-2320-280-24P Equipment Condition • Battery ground cable removed (para. 4-73). • Hood raised and secured (TM 9-2320-280-10). • Voltage regulator removed (para. 12-22). General Safety Instructions Alternator must be supported during removal and installation. TM 9-2320-280-20-3 12-32 Change 2 12-24. 100 AMPERE ALTERNATOR (12342944) REPLACEMENT