TM-9-1200-215-34&P Technical Manual for M109 Automatic Fire Control System (AFCS) Download
Page 77 of 266
TM 9–1200–215–34&P 2–42 2–22. ETHERNET CABLE AND 1553 (CHANNEL B) CABLE MAINTENANCE INSTRUCTIONS CONTINUED a. REMOVAL CONTINUED 4. Disconnect cable (6 or 7) from edge of CPU CCA (8). 5. If necessary to replace Ethernet connector cap and strap, remove screw (9), lockwasher (10), and flat washer (11) securing retaining straps (12, 13, and 14) to ACU. Discard lockwasher. 6. Remove connector cap (15). 7. If necessary to replace 1553 connector cap and strap, remove screw (16), lockwasher (17), and flat washer (18), securing retaining straps (19 and 20) to ACU. Discard lockwasher. 8. Remove connector cap (21). 9. Remove nut (22) and star washer (23) securing cable connector (24 or 25) to ACU. 10. From the interior of the ACU, remove cable (6 or 7). 11. Inspect connector gasket (26) for cuts, nicks, or signs of stretching. Discard gasket if unserviceable. b. INSTALLATION CAUTION ESD SENSITIVE The ACU 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. If removed, install connector gasket (26) on cable connector (24 or 25). 3. Position cable connector (24 or 25) in ACU. 4. Secure cable connector (24 or 25) with star washer (23) and nut (22). 6 12 15 13 9 10 11 14 21 16 17 18 20 19 25 26 7 26 24 8 23 23 22 22