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 3–9 3–13. BOTTOM COVER MAINTENANCE INSTRUCTIONS CONTINUED b. INSTALLATION CAUTION ESD SENSITIVE The DU 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. If removed, install EMI shielding gasket (3) in groove in housing (4). 3. Place bottom cover (1) on housing and align holes. 4. Insert 18 screws (2). Torque screws to 9.5".5 in.–lb (1.1".1 NSm). 5. Purge DU with nitrogen following procedure outlined in paragraph 1–23. Change 1 3 2 1 4