TM-9-1240-400-34&P Technical Manual for M109 Telescopes and Mounts Download
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TM 9-1240-400-34&P 2-17. M115 PANORAMIC TELESCOPE FINAL INSPECTION INSTRUCTIONS (CONT). DEFLECTION ERRORS (800 MIL STEPS) AND BACKLASH (DEFLECTION MECHANISM) INSPECTIONS (CONT) 13 If backlash in deflection mechanism exceeds tolerance, adjust plug (7) or retainer (8). Check for binding or loose gear trains. Refer to page 2- 28.