TM  10-3930-643-34 GENERAL  SUPPORT  TRANSMISSION  MAINTENANCE. 15-6. Forward and Reverse Steering Gear Assembly. (Sheet 5 of 13) DISASSEMBLY 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. Remove  and  discard  preformed  packing (34) from piston (33) and seal ring (35) from shaft (41). Apply air pressure to forward oil supply port at end of shaft (40). DO not blast piston from cylinder. Remove piston (37). Remove  and  discard  preformed  packing (38) and seal ring (39). Using a punch and hammer, drive three pins (44) down past retaining ring (36). Remove  and  discard retaining ring (36). Remove items 40 and 41 as an assembly from housing (42). Using an arbor press, press shaft (40) from cylinder (41). Separate shaft (40) and cylinder (41). Using a punch, remove pin (43) from shaft (40). Using  slip  joint  pliers,  remove  three pins (44) from cylinder (41). Go to sheet 6 15-77