TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
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6-8 TM 9-1240-401-34&P Section V. General Support Final Inspection Procedures 6-11. GENERAL a. This section describes and illustrates the final inspection of the M42 periscope. A final inspection will be per- formed prior to returning the M42 periscope to the using unit or to the supply system. b. If the M42 periscope being inspected fails to meet the required standards, ensure all maintenance authorized at the applicable level has been performed correctly. Then send the M42 periscope to the next higher level of main- tenance. c. The M42 periscope must be purged and charged whenever the seal is broken (ref. TM 750-116). 6-12. M42 PERISCOPE FINAL lNSPECTION AND ADJUSTMENT This task covers: a. Setting up inspection fixture c. Image tilt adjustment b. Installing M42 periscope on inspection fixture d. Sealing inspection Collimator holding fixture, fabricated (fig. C-4, appx c) Fixture, inspection, with accessories carrying case 5800949 Projector, collimating (Item 21, appx F) Telescope, collimating (Item 23, appx F) Tools Purging kit (Item 22, appx F) Tool Kit, Electronic System, Repair, Field Maintenance (SC5180-95-CL-B29) 5180-01-168-0487 Adhesive (Item 2, appx B) Cleaning compound (Item 3, appx B) Nitrogen, technical (Item 8, appx B) Screws (3) (Item 45, appx E) TM 9-254 TM 750-116