TM-9-1240-400-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-400-34&P 3-6. TROUBLESHOOTING PROCEDURES (CONT). Table 3-2. GENERAL SUPPORT TROUBLESHOOTING MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION M139 ELBOW TELESCOPE 1. M139 ELBOW TELESCOPE (1) IS NOT COLLIMATED. Check on test fixture. Collimate. Refer to page 3-24. 2. M139 ELBOW TELESCOPE (1) HAS MOISTURE OR FOREIGN MATTER. Observe visually. a. Purge. Refer to TM 750-116. b. Disassemble, clean, and reassemble. Refer to page 3-7. 3-4 3-4