TM-9-2320-362-14&P HMMWV Technical Manual Electrical Environmental System (EES) Download
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TM 9-2320-362-14&P 3-19. HOURMETER 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, TM 9-2320-280-20 Appendix B) Equipment Condition Materials/Parts Battery ground cable disconnected Seven lockwashers (TM 9-2320-280-20) P/N MS35338-137 One “O” ring P/N MS9021-136 NOTE Tag leads for installation. 1 0 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 (5) from tach/hourmeter box (6). 3. Disconnect leads (9) and (12) from hourmeter (11). 4. Remove two knurled hourmeter (11) and tach/hourmeter box mounting nuts (7) and bracket (8) from remove hourmeter (11) and O-ring (10) from (6) . Discard O-ring (10). b. Installation 1. Install O-ring (10), hourmeter (11), and bracket (8) on tach/hourmeter box (6) and secure with two knurled mounting nuts (7). 2. Connect leads (9) and (12) to hourmeter (11). 3. Install gasket (5) and tach/hourmeter box cover (4) on tach/hourmeter box (6) and secure with seven washers (l), lockwashers (2), and screws (3). 3-36