Sec. 4-Fig. 22
CRAWLER TYPE CRANES, DRAGLINES, ETC.-ROTATING BODIES-BOOMS ATTACHED-FLAT CARS
Item No. of Pcs.
Description
A
Brake wheel clearance. See Fig. 2.
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
4
4 in. x 6 in. x 21 in., hardwood, for machines weighing 45,000 lbs. or less; 6 in. x 6 in. x 21
in., hardwood, for machines weighing over 45,000 lbs. Toe-nail each to floor with four 40-D
nails. Not required when items "CC" and "DD" are used.
E
4
6 in. x 6 in., hardwood, length to suit. Locate on top of items "D", with one end against crawler
and secure each with two 5/8 in. dia. bolts, Items "F". Not required when Items "CC" and
"DD" are used.
F
8
5/8 in. dia. bolts, with nuts and washers, long enough to pass through Items "E", "G" and floor.
G
As required.
4 in. x 4 in. x 18 in., hardwood cleats, or 1/2 in. x 4 in. x 18 in. plates.
H
4
2 in. x 4 in. x 18 in., hardwood. Locate on floor, with one end against Item "E" and secure each
with six 30-D nails.
J
1
4 in. x 6 in., hardwood, length to suit, for machines weighing 45,000 lbs. or less; 6 in. x 6 in.,
hardwood, for machines weighing over 45,000 lbs. Secure to floor with four 5/8 in. dia. bolts,
with nuts and washers.
K
As required.
Two 4 in. x 6 in., hardwood, for machines weighing 45,000 lbs. or less; two 6 in. x 6 in.,
hardwood for machines weighing over 45,000 lbs. to 120,000 lbs.; four 6 in. ·x 6 in.,
hardwood, for machines weighing over 120,000 lbs. They must be long enough to fit between
Item "J" and body of machine.
F-35
