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 2–47 2–23. CONNECTOR P ANEL ASSEMBL Y WITH MAIN CABLE 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. Position cable connectors (41, 42, and 43) on backplane (21) at J15, J16 and J17, respectively, and tighten two captive screws (44) on each connector. 3. From inside ACU housing, position two connectors J5 (37) and J6 (38) and secure by installing a jam nut (39) and new preformed packing (40) on each connector. 4. Install new lockwire (36). NOTE Insulation sleeving tubing should be twice the diameter of the part over which it will be shrunk. 5. Slide a 1 in. piece of insulation sleeving (48) onto each lead (34) on rear of LEDs (35). 6. Solder leads to back of LEDs. Remove tags. 7. Clean solder joints with acid swabbing brush and alcohol. 8. Slide insulation sleeving into position. 9. Using heat gun, apply heat until sleeving forms to shape of wire and terminal. 10. Connect cable connector (26) to J1 connector (27) at the top of the Power Supply assembly (28). 11. Install clamp (29), securing cable (30) to ACU housing, by inserting screw (31), new lockwasher (32), and flat washers (33). 31 32 33 29 30 26 44 41 42 43 44 27 28 35 34 48 35 48 34 40 38 39 36 39 40 37 21