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 (cont) TM 9-1240-400-34&P MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 6. COVER ASSEMBLY (4) IS NOT SECURED PROPERLY. Check for looseness. Tighten cover assembly. Refer to page 3-7. 7. PLATE (5) ON COVER ASSEMBLY IS NOT LEGIBLE. Observe visually. Replace plate. Refer to page 3-7. OBJECTIVE CELL ASSEMBLY 8. OBJECTIVE CELL ASSEMBLY (6) HAS MOISTURE OR FOREIGN MATTER. Observe visually. a. Purge. Refer to TM 750-116. b. Disassemble, clean, and reassemble. Refer to page 3-16. 9. PARALLAX EXCEEDS 0.1 MIL AT 125 METERS. Observe visually. Adjust objective cell assembly. Refer to page 3-19. 3-6