TM-55-2350-215-10-15

TM 55-2350-215-10-15

Table 7-6.

Bill of Materials for Blocking and Tiedown of M60-Series General-Purpose Flatcar (Figs.

7-5 and 7-6)

Item

Description

Approximate

Quantity

Lumber.

........

Douglas-fir, or comparable, straight-grain, free from material defects; Fed

Spec MM-L-751:

2- X 4-in. 148 linear ft

2- X 12-in. 60 linear ft

6- X 6-in. 36 linear ft

Wire

rope.

.....

6 X 19, IWRC; improved plow steel; preformed, regular-lay; table X, Fed Spec

RR-W-410:

3/8-in. 30 ft

5/8-in. 168 ft

Clamps.

........

Wire rope, U-bolt clips, saddled, single-grip, steel, Crosby heavy-duty or

equal; MIL-STD 16842

3/8-in. 6

5/8-in. 48

Thimbles.

......

Standard, open-type:

3/8-in. 2

5/8-in. 16

Nails.

............

Common, steel; flathead; bright or cement-coated; table XI-b, Fed Spec FF-N-

105:

20d 296

30d 160

Cushioning

material.

.......

Waterproof paper, or suitable material

as required

Steel

strapping.

......

1 1/4 X .035-in. thick

3 linear ft

Shackles.

......

Anchor, 1 3/8-in.-diameter pin, 2-in. opening; NSN 4030-00-162-7545 or equal

Table 7-7.

Application of Materials for Loading and Securing MO60-Series Tanks on General-Purpose Flatcar

(Figs.

7-5, 7-6, and 7-7)

Item

No.

Required

Application

Brake-wheel clearance. Minimum clearance required is 6 in. above, in back of, and on both

sides of, and 4 in. underneath wheel.

Chock blocks (detail 1, fig 7-7). Place the incline face of the block against the track, even with

the inboard edge at the front of vehicle.

Chock blocks (detail 2, fig 7-7). Place the incline face of the block against the track, even with

the inboard edge at the rear of vehicle.

End cleats. Each consists of two pieces of 2- X 12- X 18-in. lumber. Place one against both

items B and C. Secure the lower piece to the floor with four 30d nails and the top piece to the

one below, in a like manner, with four 30d nails.

Side cleats. Each consists of one piece of 2- X 4- x 24-in. lumber. Place one on each side of

items B and C. Secure to item B or floor with four 20d nails.

Idler wheel chocking. Each to consist of two pieces of 6- X 6-in. lumber X length-to-suit, cut to

fit contour of idler wheels. Place one piece between inside and outside wheels of each road

wheel assembly.

Tie cleats, 2- X 4-in. lumber X length-to-suit. Place on top of item F (inside and outside) and

secure with four 20d nails.

Shackles. Secure one shackle to each towing lug (two at front end of vehicle and two at rear

end).

Thimbles. Place one thimble at each item H and one thimble under each stake pocket.

Wire rope, 5/8-in. Attach to each item H and stake pockets (as shown in sketch 2, fig 7-7).

Clamps, 5/8-in. Secure the ends of each wire rope loop with four clamps. Secure each thimble

with one clamp. (See sketches 1 and 2, fig 7-7.)

Blocking, inside. Each consists of two pieces of 2- X 4- x 180-in. lumber. Place along the

inside of each track, and nail the lower piece to car floor with sixteen 30d nails evenly spaced.

Nail the top piece to the one below with sixteen 30d nails in like manner.

Spreaders, inside cleat. Each consists of two pieces of 2- x 4-in. lumber X length-to-suit. Place

one between each end and center of item L. Nail lower piece to car floor with six 30d nails and

nail the top piece to the one below with six 30d nails in like manner.

7-16

TANK, COMBAT, FULL-TRACKED, M60-SERIES

TRANSPORTABILITY GUIDANCE