TM 10-3930-669-34 (3) Install lifting eye in front lead counterweight (12). WARNING Front  lead  counterweight  weighs  530 lbs  (240  kg).    Attach  suitable  lifting device prior to installation to prevent possible injury to personnel. (4) Using lifting device, install front lead counterweight  (12)  in  front  steel  counterweight (13) with two washers (11) and screws (10). (5) Remove lifting eye from front lead counterweight (12). (6) Install lifting eye in rear lead counterweight (8). WARNING Rear  lead  counterweight  weighs  580 lbs  (263  kg).    Attach  suitable  lifting device prior to installation to prevent possible injury to personnel. (7) Using lifting device, install rear lead counterweight (8) in rear steel counterweight (9) with two washers (7) and screws (6). (8) Remove lifting eye from rear lead counterweight (8). 13-37