TM-9-1200-215-34&P Technical Manual for M109 Automatic Fire Control System (AFCS) Download

Page 151 of 266

TM 9–1200–215–34&P 5–13 5–16. HEATSINK ASSEMBL Y MAINTENANCE INSTRUCTIONS DESCRIPTION This task covers: a. Removal b. Installation INITIAL SETUP Tools: Tool Kit, 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) #2 Crosstip Screwdriver Socketwrench (item 22, Appendix E) Work Station Kit, Electronic (item 38, Appendix E) Materials/Parts: Sack, Shipping (ESD) (item 23, Appendix D) Equipment Condition: CCA removed; if not, remove CCA in accordance with procedure in paragraph 5–15. Personnel Required: One MOS 35Y a. REMOVAL CAUTION ESD SENSITIVE The VMS Modem 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. Loosen connector screws (1) from receptacle J3 (2) on heatsink assembly (3). 3. Remove cable connector P3 (4) from receptacle J3 (2). 4. Remove sic screws (5) and six washers (6) securing heatsink assembly (3) to housing (7). 5. Lift heatsink assembly (3) from VMS Modem housing (7) and place in ESD safe container. Change 1 5 6 4 7 1 2 3