TM-9-2320-362-14&P HMMWV Technical Manual Electrical Environmental System (EES) Download
Page 68 of 353
TM 9-2320-362-14&P 3-20. HARNESS ASSEMBLY REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: Tools Manual Reference General mechanic’s tool kit: TM 9-2320-280-10 automotive (Item 1, Section III, Equipment Condition Appendix B) Tach/hourmeter box removed Materials/Parts (para 3-17a) Seven lockwashers P/N MS35338-137 NOTE Tag leads for installation. a. Removal 1. Remove seven screws (3), lockwashers (2), and washers (1) from tach/hourmeter box cover (4). Discard lockwashers (2). 2. Remove tach/hourmeter box cover (4) and gasket (21) from tach/ hourmeter box (20). 3. Disconnect leads (7) and (8) from hourmeter (13). Disconnect leads (12), (10), and (11) from tachometer (19). 4. Remove nut (17) from connector 12J1 (9) and nut (18) from connector 12J2 (6). Remove harness assembly (5) from tach/hourmeter box (20). b. Installation 1. Install connector 12J1 (9) to tach/hourmeter box (20) and secure with nut (17). Install connector 12J2 (6) to tach/hourmeter box (20) and secure with nut (18). 2. Connect leads (7) and (8) to hourmeter (13). 3. Connect leads to tachometer (19) as follows: a. Red lead (10) to connector (16), b. Black lead (11) to connector (15), c. Yellow lead (12) to connector (14). 4. Install gasket (21) and tach/hourmeter box cover (4) on tach/ hourmeter box (20) and secure with seven washers (l), lockwashers (2), and screws (3). 3-38