TM  10-3930-643-34 HYDRAULIC  SYSTEM  TROUBLESHOOTING  AND  MAINTENANCE.  (cont) 12-10. Boom Assembly. (Sheet 10 of 11) INSTALLATION  (cont) 46. 47. 48. 49. 50. 51. 52. Using a 10” long bar, attach hoist and sling to lever (31). Position items 31 thru 28 as an assembly on vehicle. Lever (31) weighs  approximately  382  lbs. Using a 1-1/8” socket and socket wrench  handle,  install  pin (27), washer (26) and bolt (25). Remove hoist and sling. Using a 1-1/8” socket, socket wrench handle and a rubber mallet, install pin (24), washer (23) and bolt (22). Using a 7/16” socket, socket wrench handle and a rubber mallet, install two lubrication fittings (20), bushings (19) and new seals (18) in rod (21), seal lips face outward. Attach hoist and sling to rod (21). Go to sheet 11 12-84