TM 10-3930-643-34 HYDRAULIC  SYSTEM  TROUBLESHOOTING  AND  MAINTENANCE. 12-17. Oscillation Cylinder (S/N 2000 and below). (Sheet 7 of 8) INSTALLATION 32. 33. 34. 35• 36. 37. 38. 39. 40. 41. 42. 43. Attach  hoist  and  sling  on  cylinder assembly  (11). Position  cylinder  assembly  (11)  on vehicle  carriage  assembly. Using a rubber mallet, install two pins (10). Remove hoist and sling. Using a 3/4"   socket  and  socket  wrench handle, install two anchors (9), washers (8) and screws (7). Using a 5/16" socket and socket wrench  handle,  install  two fittings (28). Install new preformed packing (6). Using a 7/8" open end wrench, connect elbow (5) and hose assembly (4) on cylinder  assembly  (11). Install new preformed packing (3). Connect union (2) and hose assembly (1) on cylinder assembly (11). Lubricate  two  fittings (28) until clean  grease  appears. Use multi- purpose grease where temperature allows. If necessary, refer to LO  10-3930-643-12. Check hydraulic fluid level. Add hydraulic  fluid,  if  necessary,  refer to LO 10-3930-643-12. Go to sheet 8 12-158