TM-9-1240-400-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-400-34&P 2-13. MAINTENANCE OF OPTICAL INSTRUMENT WORM ASSEMBLY, OPTICAL INSTRU- MENT COLLECTIVE CELL ASSEMBLY, OPTICAL INSTRUMENT OBJECTIVE CELL ASSEMBLY, AND RETICLE ASSEMBLY (CONT). REASSEMBL Y/INSTALLA TION (CONT) NOTE Steps 12 thru 14 are written and illustrated for reassembly of cell assembly (8587297). 12 Install lens (14) in optical element cell (15). 13 Apply small amount of sealing compound (item 10, appx C) to cell (16) in three places. 14 Install cell (16) in optical element cell (15). 15 Apply sealing compound (item 10, appx C) to threads of setscrew (17). 16 Install cell assembly (18) and setscrew (17) in gear (13) using tubular spanner wrench (7597648). 2-14. MAINTENANCE OF ADAPTER ASSEMBLY AND COUNTER ASSEMBLY. This task covers: a. Removal/ Disassembly c. Repair b. d. Reassembly/Installation INITIAL SETUP: Reference Tools and Special Tools TM 9-254 Tool kit, electronic: system maintenance (SC 5180-95-CL-B29) Equipment Conditions Tubular spanner wrench, 11/16 and 45/64 2-28 Adapter assembly removed (7597638) General Safety Instructions Materials/Parts Adhesive sealant (item 5, appx C) Aircraft grease (item 7, appx C) Lockwasher (MS35338-134) Lockwasher (7) (MS35338-135) Lockwasher (2) (MS35338-136) Use adhesives, cleaning solvents, Sealing compound (item 10, appx C) and sealing compounds in well- Solder (item 12, appx C) ventilated area away from open Soldering flux (item 6, appx C) flame. Adhesives, cleaning sol- vents, and sealing compounds are harmful to skin and clothing, can burn easily, and may give off harmful vapor. 2-42