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 2–16 2–15. 1553 CCA MAINTENANCE INSTRUCTIONS DESCRIPTION This task covers: a. Removal b. Installation INITIAL SETUP Tools: Tool Kits, JTK–17LAL, TK–101/G, or TK–105/G (items 34, 35, & 36, Appendix E) Torque Wrench, 0–15 in.–lb (item 39, Appendix E) #1 Crosstip Screwdriver Socket Wrench (item 21, Appendix E) Materials/Parts: Bag, Plastic (item 6, Appendix D) Box, Shipping (item 10, Appendix D) Equipment Conditions: Stabilizer bracket removed; if not, remove stabilizer brackets in accordance with paragraph 2–14 Personnel Required: One MOS 35Y a. REMOVAL 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. NOTE Tag wires before removing. 2. Disconnect two channel connectors (1) from J1 and J2 connectors located on end of 1553 CCA (2). 3. Remove screw (3) and flat washer (4) from holddown of 1553 CCA (2). 4. Gently remove 1553 CCA (2) from backplane connector J8 (5) in ACU housing. 1 2 3 4 5