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 3–14 3–15. SWITCH P ANEL MAINTENANCE INSTRUCTIONS CONTINUED a. REMOVAL CONTINUED 5. Loosen 12 captive flat tip screws (11) securing switch panel (12) to DU housing. Remove switch panel from DU housing. 6. Remove EMI shielding gasket (13) from DU. CAUTION The EMI shielding gasket is vital to this piece of equipment and is easily damaged. Handle with care when removing or replacing it. Gasket will break if stretched. Failure to comply may result in damage to equipment. 7. Inspect EMI shielding gasket (13) for cuts, nicks, or signs of stretching or deterioration. Discard EMI shielding gasket if unserviceable. 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. Gasket will break if stretched. Failure to comply may result in damage to equipment. 2. Place EMI shielding gasket (13) into gasket groove in DU housing. NOTE DU housing must be elevated to insert and secure switch panel. 3. Refer to illustration for proper placement and place switch panel (12) in DU housing. Secure switch panel to DU housing by torquing 12 captive flat tip screws (11) to 9.5".5 in.–lb (1.1".1 NSm). 11 12 13