TM 10-3930-659-34 4-69. FORK/BOOM ASSEMBLY MAINTENANCE (Con’t). WARNING Use extreme  caution  when  handling  heavy  parts.    Lifting  device  is  required  when parts weigh over 50 lb (23 kg) for a single person lift, over 100 lb (45 kg) for a two person  lift,  and  over  150  lb  (68  kg)  for  a  three  or  more  person  lift.    Keep  clear  of heavy  parts  supported  only  by  lifting  device.    Failure  to  follow  this  warning  may cause serious injury or death to personnel. NOTE Fork/boom assembly weighs 1020 lb (463 kg). 2. Remove two screws (7), washers (8), shims (10), and pins (9) from fork/boom assembly (3). 3. Remove two screws (6), washers (5), and pins (2) from fork/boom assembly (3) and loader frame (1). 4-284