TM 10-3930-643-34 STEERING  TROUBLESHOOTING  AND  MAINTENANCE. 9-6. Control Valve and Check Valve. (Sheet 15 of 15) ADJUSTMENT 103. 104. 105. 106. 107. 108. 109. 110. 111. 112. Using an 11/16"   socket and socket wrench handle,   remove nut (82) and preformed  packing  (83). Discard preformed  packing  (83). Loosen locknut (84). Using a flat tip screwdriver, back off adjusting screw (86) until no tension is felt. Start engine and run at high idle. Turn steering wheel fully right or left. Hydraulic fluid must be at normal operating temperature. Pressure gage should read 2000 psi. Using a flat tip screwdriver, turn adjusting screw (86) clockwise to increase  pressure,  counterclockwise to  decrease  pressure,  as  necessary. Using an 11/16" socket, socket wrench  handle  and torque wrench, tighten locknut (84) to 10 lb-ft. Stop engine. Install  new  preformed  packing (83) and nut (82). Remove  hydraulic  pressure  gage. Using a 5/8" socket, socket wrench handle and torque wrench, install new preformed packing (49) and one plug (48). Tighten plug (48) to 30 lb-ft. NOTE Return  M10A  Forklift equipment  condition. to  original END OF TASK 9-51

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