TM-9-1240-400-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-400-34&P Section VI. GENERAL SUPPORT FINAL INSPECTION PROCEDURES 5-18. GENERAL. a. This section describes and illustrates the final inspection procedures for the M137 telescope mount. A final inspection will be performed prior to returning the M137 telescope mount to the using unit or to the supply system. b. If the M137 telescope mount inspected fails to meet the required standards, ensure that the maintenance authorized at the applicable level has been performed correctly. 5-19. FINAL INSPECTION INSTRUCTIONS. This task covers: a Setting up and adjusting cross-leveling fixture b Visual inspection c Mounting M137 telescope mount on cross-leveling fixture d Inspecting and adjusting level bar e Checking and adjusting level vials f Checking and adjusting cross-level knob torque and backlash g Checking and adjusting elevation knob torque and backlash h Checking and adjusting counter and stop assembly i Checking and adjusting correction counter dial j Checking and adjusting elevation and correction counters alinement k Checking M137 telescope mount accuracy I Adjustment of top surface m Checking M137 telescope mount cant correction n Checking illumination of M137 telescope mount o Checking M137 telescope mount rigidity INITIAL SETUP Test Equipment Sealing compound (item 10, appx C) Cross-leveling fixture (item 3, figure B-25) Gunner’s quadrant (8228867) References Precision level (7686087) TM 9-254 Spring tester (item 4, figure B-25 Test fixture adapter (item 6, figure B-25) ) General Safety Instructions Tools and Special Tools Tool kit, electronic: system maintenance (SC 5180-95-CL-B29) Spanner wrench (8284045) Use adhesives, cleaning solvents, Torque adapter (8213490) and sealing compounds in well- Torque adapter (8599909) ventilated area away from open Torque wrench (GGG-W-686) flame. Adhesives, cleaning solvents, Materials/Parts and sealing compounds are harmful Adhesive (item 4, appx C) to skin and clothing, can bum easily, Aircraft grease (item 8, appx C) and may give off harmful vapor. 5-52