Sec. 6-Fig. 80 (Rev.-10-1981)
(Drawing Redrawn 9-1977)
TANKS AND SlMILAR UNITS, OVER 60,000 TO 100,000 LBS., INCLUSIVE-FLAT CARS
No. of Pcs.
Brake wheel clearance. See Figure 2, Section 1.
8 in. x 10 in. x 28 in. solid block. Cut blocks as shown in detail "A", 45 degrees on one end
35 degrees on the other end. Nail each block to a 2 in. x 10in. x 47 in. piece of lumber with
eight 30-D nails so that two blocks have the 35 degree end forward and two blocks have
45 degree end forward. Place blocks against tank treads and nail to car floor with eight
2 ea. unit.
Each to consist of two pieces of 2 in. x 4 in. x 14 feet. Locate on floor against inside of each
crawler tread. Secure lower piece to car floor with twelve 30-D nails and top piece to lower
piece in like manner. Substitute if desired tread side cleats, Pattern No. 75, Section 6. Apply
three (3) to the inside of each crawler tread. Locate at ends and center and secure to car floor
as specified under Pattern 75.
3 ea. unit.
Each to consists of two pieces 2 in. x 4 in. long enough to fill space between Items "C". Locate
one near center and one near each end of Items "C". Secure lower piece to lower piece in
like manner. Not required when tread side cleats, Pattern No. 75, Section No. 6, are sub-
stituted per Item "C".