TM 10-3930-643-34 STEERING  TROUBLESHOOTING  AND  MAINTENANCE. 9-6. Control Valve and Check Valve. (Sheet DISASSEMBLY 42. Using a scribe,   remove retainer (74) and  preformed  packing  (75)  from  plug (76). Discard  preformed  packing (75). 43. Remove spring (77) and poppet (78). 44. Remove plunger (79). 45. Remove and discard wiper (80) and seal (81). 46. Using an 11/16" open end wrench, remove  nut  (82)  and  preformed  packing (83). Discard  preformed  packing (83). 47. Using an 11/16" open end wrench, remove locknut (84), preformed packing (85), adjusting screw (86), spring (87) and poppet (88). Discard preformed  packing  (85). 48. Using a 1-3/8" open end wrench, remove  plug  (89),  preformed packing (90), retainer (91) and Preformed packing (92). Discard preformed packings (90 and 92). 49. Remove spring (93), shims (94) and plunger (95) from valve (96). 7 of 15) Go to sheet 8 9-43