TM 10-3930-669-34 WARNING • Pivot arm weighs 335 lbs (152 kg).  Attach lifting device prior to removal to prevent possible injury to personnel. • All     personnel     must     stand clear during lifting operations. A   swinging   or   shifting   load may  cause  injury  or  death  to personnel. (4) Position spacer (26) and spacer (27) in side shift assembly (25). (5) Using  suitable  lifting  device  position  pivot  arm (24) in side shift assembly (25). (6) Position pivot pin (19) in pivot assembly (8) and pivot arm (24) from the bottom. (7) Position  bearing  (23),  nut  (22),  lock  ring  (21), and nut (20) on pivot pin (19).  Do not tighten. (8) Using  spanner  wrench,  tighten  top  nut  (20)  to 260 lb-ft (352.51 N.m). (9) Using spanner wrench, tighten bottom nut (22) to 540 lb-ft (732.14 N.m). 15-63