TM-9-1200-215-34&P Technical Manual for M109 Automatic Fire Control System (AFCS) Download
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TM 9–1200–215–34&P 5–10 5–14. INDICATOR MAINTENANCE INSTRUCTIONS CONTINUED b. INSTALLATION CAUTION ESD SENSITIVE The VMS Modem contains ESD sensitive components. Wear a protective ESD wrist strap whenever handling components. Failure to comply may result in damage to equipment. 1. Attach ESD grounding strap to wrist and ground to ensure ESD protection. 2. Clean, straighten, and retin ends of wires (6 and 7). Slide jam nut (4) and lockwasher (5) over wires. Insert wires through hole. 3. Place 1.5 + 0.5 inch (30 + 10 mm) of new insulation sleeving (8) on each wire (6 and 7) and push back away from bare portion of wire to allow for soldering. 4. Clean solder posts (9 and 10) using type cleaner and soldering aid tool. Coat solder posts with solder flux prior to soldering. 5. Solder wires (6 and 7) to appropriate indicator base post (9 and 10). Remove marker bands. 6. Push insulation sleeving (8) up wire to base of indicator (2). Shrink insulation sleeving around wires and indicator base solder posts. 7. Insert indicator base (2) into modem housing. 8. Place lockwasher (5) and jam nut (4) on indicator base (2) and hand tighten. 9. Torque indicator base jam nut (4) to 20 + 1 in.–lb (2.3 + 1 NSm). 10. Insert LED (3) into indicator cap (1) and push gently until fully seated. 11. Screw indicator cap (1) into indicator base (2) until fully seated. 12. Install cover in accordance with procedure outlined in paragraph 5–13. 1 3 2 6 7 8 8 4 5 10 9