TM 10-3930-643-34 STEERING TROUBLESHOOTING AND MAINTENANCE. 9-6. Control Valve and Check Valve. (Sheet 11 of 15) ASSEMBLY 67. Using a flat tip ‘bit in adapter socket and torque wrench, install items 55 thru 51 as an assembly. Tighten plug (55) to 110 lb-ft. 68. Using a 1-1/2" socket, socket wrench handle  and  torque  wrench,  install  nut (50). Tighten nut (50) to 50 lb-ft. 69. Using a 5/8"   socket,  socket wrench handle and torque wrench, install three new preformed packings (49) and plugs (48). Tighten plugs (48) to 30 lb-ft. 70. Using  a  1-3/8"  socket,  socket  wrench handle and torque wrench, install plug  (47),  new preformed packing (46), plug (45), new preformed packing (44) and plug (43). Tighten plug (47) to 45 lb-ft and plug (45) to 100 lb-ft. Go to sheet 12 9-47