TM 55-2200-001-12
Change 3
Sec. 3--Fig. 100 (New-12-1969)
(Heading Corrected 3-1971)
TRACTOR-SCRAPER C3MBINATION, (WITH PNEUMATIC TIRES), FLAT CARS WITH CHAIN TIE-DOWN
ASSEMBLIES, TIE-DOWN CHANNELS AND SPECIAL CUSHIONING DEVICES
Item
No. of Pcs.
Description
A
Brake Wheel Clearance, See Fig. 2, Sec. 1.
B
4 chains for units up to 15,000 lbs.
½ in. alloy tie-down chain assembly. Additional chains may
8 " " " "
over
15,000 to 30,000 lbs.
be added for lateral stability.
12 " " " "
30,000 to 45,000 "
16 " " " "
45,000 to 60,000 "
20 " " " "
60,000 to 75,000 "
24 " " " "
75,000 to 90,000 "
28 " " " "
90,000 to 105,000 "
32 " " " "
105,000 to 120,000 "
36 " " " "
120,000 to 135,000 "
40 " " " "
135,000 to 150,000 "
C
4 chains for units up to 30,000 lbs.
½ in. alloy tie-down chain assembly. Additional chains may
8 " " " "
over
30,000 to 60,000 lbs.
be added for lateral stability.
12 " " " "
60,000 to 90,000 "
16 " " " "
90,000 to 120,000 "
20 " " " "
120,000 to 150,000 "
D
2 per unit
8 in. wide x 30 in. long, thickness to suit, , lumber, space between car floor and scraper blade.
Secure to floor by nailing.
GENERAL INSTRUCTIONS
Secure longitudinal chains to vehicle. Pull chains as tight as possible by hand and attach hook into an appropriate link in the
chain. All chain tie-downs must be made taut by tightening the turnbuckles.
Tie-downs in the inboard channels are to be in line across the car and tiedowns in the outboard channels are to be in link in the
same manner. The angle of the tie-downs must be as close to 45° as possible.
Gear shift levers are to be placed in a neutral position.
Turnbuckles not equipped with self-locking devices must be wired or locked to prevent loosening.
See General Rules 4, 5, 9, 14, 15, 19-A, 19-B and 19-C for further details.
F-30.1
