Sec. 4--Fig. 22-C (Rev.--3-1965)
CRAWLER TYPE CRANES, DRAGLINES, ETC.-ROTATING BODIES-BOOMS ATTACHED--FLAT CARS
Item No. of Pcs.
Description
A
Brake wheel clearance. See Fig. 2, Sec. 1.
B
2
4 in. x 6 in., hardwood, length equal to that portion of crawler tread resting on floor. Locate on
floor, against crawlers, and secure each with four 5/8 in. dia. bolts or eight 60-D nails.
Substitute, if desired, four pieces, 4 in. x 6 in. x 4 ft. Locate as shown and secure each with
two 5/8 in. dia. bolts or four 60-D nails.
C
2
4 in. x 4 in., hardwood, long enough to fit between Items "B". Secure each to floor with two 5/8
in. dia. bolts or four 60-D nails.
D
2
4 in. x 6 in., hardwood, for machines weighing 45,000 lbs. or less; 6 in. x 6 in., hardwood, for
machines weighing over 45,000 lbs.; long enough to extend beyond Items "G" and "H".
Secure each to floor with four 5/8 in. dia. bolts.
E
As required.
2 in. x 4 in. x 18 in., hardwood cleats, or 1/2 in. x 4 in. x 18 in. plates.
F
As required.
5/8 in. dia. bolts, with nuts and washers, long enough to pass through Items "D", "E" and floor.
G
2
4 in. x 6 in., hardwood, for machines weighing 45,000 lbs. or less: 6 in. x 6 in., hardwood, for
machines weighing over 45,000 lbs.; long enough to fit between Items "D" and body of
machine.
H
6
4 in. x 6 in., hardwood, long enough to fit between Items "D" and base of machine. Four only
required for machines weighing 112,000 lbs. or less.
J
4
2 in. x 6 in., hardwood, long enough to extend beyond outside Items "H". Secure to Items "H"
with three 20-D nails at each location.
K
1
2 in. x 6 in., hardwood, length to suit. Locate against Item "D", and secure to floor with six 30-D
nails. Not required when Items "M" are used at both ends.
L
2
2 in. x 6 in., hardwood, length to suit. Locate diagonally and secure ends to opposite Items "G"
with six 20-D nails at each location.
F-41
