Sec.  4-Fig.  22 (Rev.--3-1965) CRAWLER TYPE CRANES, DRAGLINES, ETC.--ROTATING BODIES-BOOMS ATTACHED-FLAT CARS Item    No. of Pcs. Description L 2 2 in.  x 6 in., hardwood, length to suit.  Locate against Item "J" and secure each to floor with six 30-D nails. M 2 2 in.  x 6 in., hardwood, length to suit.  Secure top ends to Items "K" and bottom ends to Items "B" with four 30-D nails at each location. N 2 2 in.  x 6 in., hardwood, length to suit.  Locate diagonally and secure ends to opposite Items "K" with six 20-D nails at each location. 0 4 1 1/4 in.  diameter rods.  Attach two at front and two at rear of rotating portion and pass through opposite  stake  pockets  and  Items  "P".    1  in.    diameter  rods  may  be  used  for  machines weighing 45,000 lbs.  or less.  Substitute, if desired, 5/8 in.  x 6 x 7 steel cable, doubled, for 1Y in. diameter rods, or 1/2 in.  x 6 x 19 steel cable, doubled, for 1 in.  diameter rods.  Items "O" may  be  applied  at  front  end  of  machines,  crossed  between  rotating  portion  and  crawler structure,  or  applied  on  same  side  of  machines  equipped  with  two  brackets  cast  integral  on both rotating and crawler structures. P 1 ea.  Item "O". 1/2 in.  x 4 in.  x 10 in.  plates.  Not required when Items "O" consists of cable. Q 1 4 in.  x 6 in., hardwood, long enough to extend 6 in.  beyond each side of boom. R 4 4 in.  x 6 in., hardwood, length to suit.  Secure each piece to Item "Q" with four 30-D nails and to floor with five 30-D nails.  Items "R" must be long enough to keep boom at least six inches above top of sides and ends of idler car. S 2 2 in.  x 6 in., hardwood, length to suit.  Secure to Items "R" with four 30-D nails in each end. T 2 2 in.  x 6 in., hardwood, long enough to extend beyond Items "R".  Secure each to floor with six 30-D nails. U 1 5/8 in.  x 6 x 7 steel cable, doubled.  Loop over and around boom, near front end, and through stake pockets on opposite sides of car. V 1 6  in.    x  6  in.,  hardwood,  long  enough  to  extend  beyond  each  side  of  boom.    Locate  so  as  to maintain 2 in.  clearance between end of boom and floor and toe-nail to floor with six 60-D nails in each side.  Not required when sheave wheel rests on floor. W 2 4 in.  x 6 in., hardwood, length to suit. X 1 4 in.  x 6 in., hardwood, long enough to extend 6 in.  beyond each side of gantry.  Toe-nail to each Item "W" with four 30-D nails. Y 4 2 in.  x 6 in.  x 12 in., hardwood.  Locate one on front and one on back face of each Item "W" and secure each to Items "W" and "X" with six 20-D nails. Z 4 2 in.  x 6 in., hardwood, length to suit.  Toe-nail bottom end of each to floor with two 80-D nails and top end of each to Item "W" with three 30-D nails. AA 4 2 in.  x 6 in.  x 12 in., hardwood cleats.  Locate one against each Item "Z" and secure each to floor with four 30-D nails. BB 1 3/8 in.  steel cable, doubled.  Loop over and around gantry, and through opposite stake pockets. CC 4 8 in.  x 8 in.  x 36 in., hardwood, cut to fit contour of crawler treads, for machines weighing 45,000 lbs.  to 120,000 lbs.  Secure each with three 3/4 in.  dia.  bolts through floor and Item 12 in.  x 12 in.  x 36 in., hardwood, cut to fit contour of crawler treads, for machines weighing over 120,000 lbs.  Secure each with three 7/8 in.  dia.  bolts through floor and Item "G". Not required when Items "D" and "E" are used. DD 4 2 in.  x 12 in.  x 36 in., hardwood cleats, for machines weighing 45,000 lbs.  to 120,000 lbs. 3 in.  x 4 in.  x 18 in., hardwood cleats, for machines weighing over 120,000 lbs. Locate on floor against Items "CC" and secure each to floor with six 30-D nails. Not required when Items "D" and "E" are used. Items "Q", "R", "S" and "T" not required when Items "V" are used, or vice versa. Loading  machines  with  treads  extending  beyond  floor  of  car  is  permitted,  provided  machines  are  centrally located on car and not more than one-half of tread extends beyond outside face of side sill. Machines  equipped  with  locking  devices,  including  those  with  adjustable  treads,  should  have  such  devices placed in locked position by shippers. For proper location of load on car, see Fig.  34. See General Rules 4, 5, 8, 9, 14, 15, 19, 19A and 21 for further details. F-36