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TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download

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TM 9-2320-387-24-1 4-100 Change 1 4-60. STOPLIGHT/TORQUE CONVERTER CLUTCH BRAKE SWITCH MAINTENANCE a. Removal 1. Disconnect leads 75A (1), 75B (16), and connector 810A/810B (15) from switch leads (2). 2. Remove two locknuts (6), washers (4), capscrews (5), washers (4), and switch (3) from mounting bracket (7). Discard locknuts (6). 3. Remove pushnut (14), stoplight switch arm (13), and washer (12) from actuating rod (11). Discard pushnut (14). 4. Remove pushnut (9), actuating rod (11), and washer (10) from brake pedal (8). Discard pushnut (9). INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Test Equipment Multimeter (Appendix B, Item 155) Manual References TM 9-2320-387-24P Materials/Parts Two locknuts (Appendix G, Item 109) Two pushnuts (Appendix G, Item 313) Equipment Condition Battery ground cables disconnected (para. 4-68). Maintenance Level Unit 1. Install washer (10) and actuating rod (11) on bracket (8) with pushnut (9). 2. Install washer (12) and stoplight switch arm (13) on actuating rod (11) with pushnut (14). 3. Install switch (3) on mounting bracket (7) with two washers (4), capscrews (5), washers (4), and locknuts (6). 4. Connect leads 75A (1), 75B (16), and connector 810A/810B (15) to switch leads (2). b. Installation 1. Disconnect leads 75A (1), 75B (16), and connector 810A/810B (15) from switch leads (2) and connect multimeter to leads on switch (3) to check continuity. Multimeter should indicate open. Depress brake pedal; multimeter should indicate continuity within approximately 1/4 in. (6 mm) of pedal travel. If not, go to step 2. 2. Loosen two capscrews (5) to allow movement of switch (3). 3. Position switch (3) so that continuity is present when installed. Slide switch forward until no continuity (open) is indicated (approximately 1/4 in. (6 mm)). 4. Tighten two capscrews (5). 5. Connect leads 75A (1), 75B (16), and connector 810A/810B (15) to switch leads (2). 6. Connect battery ground cables (para. 4-68). 7. Turn selector lever to service drive; stoplights should not illuminate. Depress brake pedal; stoplights should illuminate within 1/4 in. (6 mm) of pedal travel. c. Adjustment This task covers: a. Removal c. Adjustment b. Installation NOTE Prior to removal, tag leads for installation.