TM-9-1240-401-34&P Technical Manual for M109 Telescopes and Mounts Download
Page 58 of 344
2-24 TM 9-1240-401-34&P I 2-15. M146 TELESCOPE MOUNT FINAL INSPECTION AND ADJUSTMENT-continued e. CHECKING DEFLECTION KNOB MECHANISM RUNNING TORQUE 1 With torque wrench and adapter (8599922), rotate deflection knob (1) clockwise and counterclock- wise. NOTE Torque wrench should indicate running torque of 56 to 72 ounce-inches (0.395 to 0.508 N-m). If running torque is not within specified limits, adjust as directed in steps 2 thru 6. 2 Loosen self-locking nut (2). 3 Loosen setscrew (3). 4 Using fabricated spanner wrench, adjust threaded ring (4) until required running torque is obtained. 5 Tighten setscrew (3). 6 Tighten self-locking nut (2).