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 6–10 6–13. TOP COVER ASSEMBL Y MAINTENANCE INSTRUCTIONS CONTINUED a. REMOVAL CONTINUED 7. Unscrew two captive screws (10) from connector P9 (11). Disconnect connector P9. 8. Remove top cover assembly from PCU housing. CAUTION The EMI shielding gasket is vital to this piece of equipment and is easily damaged. Handle with care when removing or replacing it. Failure to comply may result in damage to equipment. 9. Remove EMI shielding gasket (12) from housing. Inspect EMI shielding gasket for cuts, nicks, or signs of stretching. Discard EMI shielding gasket if unserviceable. b. INSTALLATION CAUTION ESD SENSITIVE The PCU 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. CAUTION The EMI shielding gasket is vital to this piece of equipment and is easily damaged. Handle with care when removing or replacing it. Failure to comply may result in damage to equipment. 2. Position EMI shielding gasket (12) into groove located on top of housing. 3. Connect connector P9 (11) to PCU Main CCA receptacle J9 (13). Torque two captive screws (10) to 3".2 in.–lb (.34".02 NSm). 12 13 10 11