TM  10-3930-643-34 HYDRAULIC  SYSTEM  TROUBLESHOOTING  AND  MAINTENANCE.  (cont) 12-10. Boom Assembly. (Sheet 8 of 11) CLEANING/INSPECTION   (cont) 34. Inspect  boom  assembly (40). If bushings are worn, boom assembly (40) must be replaced. 35. Inspect all other parts. Refer to paragraph 2-9. ASSEMBLY 36. 37. 38. NOTE The following are differences between  M10A  Forklift  models. Using  a  3/4”  socket,  socket  wrench handle and open end wrench, install t nut (45) and bolt (44) in vehicles S/N 2001 and above. Using a rubber mallet and slip joint pliers,  install  boom  support  (43), pin (42) and new cotter pin (41), in vehicles S/N 2001 and above. Using  a  7/16”  socket,  socket  wrench handle  and  rubber  mallet,  install  six lubrication  fittings  (39)  and  12  new seals (38) on boom assembly (40), seal lips face outward. Go to sheet 9 12-82