TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download
Page 621 of 1170
12-23. 100 AMPERE ALTERNATOR (12340912) REPLACEMENT This task covers: a. Removal b. Installation 1. Loosen two clamp nuts (12) and remove clamp pins (7) from regulator slots (6). 2. Loosen connector plug (4) and remove regulator (5) from alternator (13) and position regulator (5) out of the way. 3. Loosen capscrew (20) on alternator adjusting bracket (19), and two capscrews (10) on alternator mounting bracket (18) and support bracket (17). 4. Remove two drivebelts (1) from alternator pulley (2). WARNING Alternator must be supported during removal and installation. Failure to do this may cause injury to personnel or damage to equipment. 5. Remove capscrew (14), lockwasher (15), and washer (16) from alternator (13) and adjusting bracket (19). Discard lockwasher (15). NOTE • Perform step 7 for vehicles with new alternator support bracket configuration. • In some cases, a thru-bolt and nut may be present on mounting bracket instead of standard capscrews and washers. 6. Remove two capscrews (10), lockwashers (11), and alternator (13) from mounting bracket (18) and support bracket (17). Discard lockwashers (11). 7. Remove two capscrews (10), lockwashers (11), washer (22), spacer (24), and alternator (13) from power steering lines bracket (23), support bracket (17), and mounting bracket (18). Discard lockwashers (11). 8. Remove guard (9) and two clamp straps (8) from alternator (13). 9. Remove alternator pulley (2) (para. 4-3). 1. Install alternator pulley (2) (para. 4-3). 2. Install two clamp straps (8) and guard (9) on alternator (13). NOTE • Perform step 4 for vehicles with new alternator support bracket configuration. • In some cases, a thru-bolt and nut may be present on mounting bracket instead of standard capscrews and washers. 3. Install alternator (13) on mounting bracket (18) and support bracket (17) with two lockwashers (11) and capscrews (10). Tighten capscrews (10) finger tight. b. Installation a. Removal INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Silicone (Appendix C, Item 48) Two lockwashers (Appendix G, Item 188) Lockwasher (Appendix G, Item 133) Personnel Required One mechanic One assistant Manual References TM 9-2320-280-10 TM 9-2320-280-24P Equipment Condition • Battery ground cable disconnected (para. 4-73). • Hood raised and secured (TM 9-2320-280-10). General Safety Instructions Alternator must be supported during removal and installation. TM 9-2320-280-20-3 12-30 Change 2