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 4–8 4–13. TOP COVER ASSEMBL Y, BOTTOM COVER, AND PREFORMED P ACKING CONTINUED b. INSPECTION 1. Inspect RFI/EMI contact strips (7) for bent or broken fingers. Repair or replace if necessary (para 4–15). 2. Inspect neoprene rubber strips (8) for cuts, tears, or peeling. Repair or replace if necessary (para 4–14). c. INSTALLATION CAUTION ESD SENSITIVE The PDIU 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 preformed packing (6) in groove in top or preformed packing (6) in groove in bottom of PDIU housing (5). CAUTION Damage to RFI/EMI contact strip may occur. When installing cover, place cover straight down onto housing. 3. Apply thread compound to threads of 20 screws (1) for each cover to be installed. NOTE Observe location of RFI/EMI contact strip on inside of top and bottom covers. 4. Position cover(s) so that RFI/EMI strip(s) (7) is in contact with housing partition (9). 5. Install top cover (3) and/or bottom cover (4) with 20 flat washers (2), and 20 screws (1). d. TEST At the completion of the repairs, test the PDIU in accordance with para 4–1 1. 3 6 5 7 8 4 6 7 1 2 1 2 9