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TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download

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TM 9-1240-401-34&P 3-16. COVER ASSEMBLY MAINTENANCE INSTRUCTIONS (M118A3) - continued b. Disassemble Remove preformed packing (5) from groove in cover assembly (1) and discard. c. repair 1 Remove corrosion, grease, and dirt from all parts. Refer to TM 9-254 for cleaning instructions. 2 Visually inspect for missing and damaged parts. 3 Repair or replace parts in accordance with author- ized parts listed in appendix D. d. Assembly NOTE Seal over external side of adapter 10543763 and lamp MS25236-8623 using sealing com- pound if it has not already been done. New manufactured covers will not contain the adapter and lamp. 1 Apply adhesive to the groove of cover assembly (1). 2 Install new preformed packing (5) in cover assem- bly (1). e. Installation 1 Position cover assembly (1) on bottom of housing (2). 2 Secure cover assembly (1) to housing (2) with four new Iockwashers (4) and four machine screws (3). 3-20