TM 55-2200-001-12
Change 3
Sec. 3--Fig. 12 (Rev.-9-1983)
COMBINATION TWO WHEEL TRACTOR AND TRACTOR DRAWN SCRAPER
(WITH PNEUMATIC TIRES) LENGTHWISE, 170,000 LBS. OR LESS-FLAT CARS
Item
No. of Pcs.
Description
A
Brake wheel clearance. See Fig. 2, Sec. No. 1.
B
1 each wheel
Blocks, pattern 26. Locate one inside of each wheel.
C
2 each wheel set
Lumber, 2 In. x 6 in., length to suit. Locate between Items "B". Secure each to car floor with
40-D nails spaced 12 inches apart.
D
2 each Item "C"
Blocks, pattern 27. Locate on top of Items "C" and against Items "B" and secure to both with six
(6) 40-D nails.
E
100,000 lbs. or
Blocks, pattern 28. Locate in front and back of each wheel as shown. Secure each to car floor
less, 6 each wheel
with five (5) 40-D nails in heel and one (1) 40-D nail in each side of
block.
Over 100,000 lbs.
to 135,000 lbs.
inclusive 8 each wheel.
Over 135,000 lbs. to
170,000 lbs.
inclusive 10 each wheel.
F
2
Lumber, 4 in. x 8 in. x 24 In. Locate under scraper blade, each side, and secure each to car
floor with four (4) 40-D nails.
G
3
5/8 in. dia. 6 x 19 IWRC wire rope, length to suit. Locate from stake pocket, one side of car,
through shackles front of tractor, front of scraper and rear of scraper. Secure to opposite stake
pocket. On chain tie-down cars, chains may be used in lieu of cables.
Note:
1. If so equipped, hand brakes must be tightly set and levers wired.
See General Rules 1, 2, 3, 4, 5, 7, 9, 14, 15, 19-A and 19-B for further details.
F-12.1
