TM-9-1240-400-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-400-34&P 3-7. MAINTENANCE OF M139 ELBOW TELESCOPE (CONT). REASSEMBL Y (CONT) 16 Install eyepiece assembly (22). 17 Install setscrew (23), but do not tighten. NOTE Refer to final inspection procedures for adjustment and alinement of reticle cell assembly and objective cell assembly. Adapter, screw, lockwasher, eyeshield adapter, and eyeshield will be installed after final inspection procedures. Purging screw will be tightened after final purging. 18 Install purging screw (24), but do not tighten. 3-8. MAINTENANCE OF EYEPIECE ASSEMBLY. This task covers: a. Disassembly c. Repair b. Cleaning d. Reassembly INITIAL SETUP: Tools and Special Tools Tool kit, electronic: system maintenance General Safety Instruction (SC 5180-95-CL-B29) Materials/Parts Sealing compound (item 10, appx C) Use adhesives, cleaning solvents, References and sealing compounds in well- TM 9-254 ventilated area away from open TM 750-116 flame Adhesives, cleaning sol- vents, and sealing compounds are Equipment Conditions harmful to skin and clothing, can 3-7 Eyepiece assembly removed burn easily, and may give off harmful vapor. 3-12 WARNING