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 2–17 2–15. 1553 CCA MAINTENANCE INSTRUCTIONS CONTINUED 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. Install 1553 CCA (2) onto backplane at connector J8 (5) in ACU housing. 3. Insert screw (3) and flat washer (4) into holddown of 1553 CCA (2). Torque screws to 5 in.–lb (0.6 NSm). 4. Remove tags and connect two channel connectors (1) to J1 and J2 connectors located on end of 1553 CCA. 5. Install stabilizer brackets in accordance with procedure outlined in paragraph 2–14. 1 2 3 4 5