CUCV with S-250 Shelter Secured on Steel Deck Railcar

30 January 1987

TM 55-2320-289-14

7-10. CUCV with S-250 Shelter Secured on Steel Deck Railcar

The CUCV with S-250 shelter is transportable as a single unit on steel deck railcars.

a. Securing the CUCV with S-250 Shelter to Railcar. The M1028 CUCV will be secured to the flatcar

using four steel chains. Use a 3/8-inch diameter alloy steel chain, extra strength, proof-tested to a minimum

of 18,000 pounds, or use either a 4/2-inch diameter alloy steel chain proof-tested to a minimum of 22,500

pound, or a 1/2-inch diameter alloy steel chain, extra strength.

Table 7-5. Application of Chain Tiedowns for Securing CUCVs on Railcar with Steel Decks and Center Tiedown Rails (Fig 7-4)

Item

No. required

Application

Brake wheel clearance. Minimum clearance required is 6 inches above, in back of, and on both sides of and 4

inches underneath the wheel.

4 ea

Steel chains. Use a 3/8-inch diameter alloy steel chain, extra strength, proof-tested to a minimum of 18,000

pounds, or use either a 1/2-inch diameter alloy steel chain proof-tested to a minimum of 22,500 pounds or a

1/2-inch diameter alloy steel chain, extra strength, proof-tested to a minimum of 27,500 pounds. Attach one

chain tiedown to each tiedown shackle in front and rear.

GENERAL INSTRUCTIONS

1. When ordering specialized railway equipment, shippers should specify cars equipped with tiedown de-

vices in the quantity and strength as shown in item B. When carriers furnish cars that do not have built-

in chains and tensioning devices, chains shown in item B will be used to secure vehicles. Tiedown chains

must be checked for twisted or kinked links before they are applied to the vehicles.

2. Vehicles must face in the same direction and be uniformly spaced along the length of the railcar to

allow sufficient space at each end of the car and between the vehicles for securement. Apply tiedowns from

the vehicle shackle to the car tiedown facility. The angle of the tiedown should be as close as possible to

45. When the length of vehicles loaded on a 75-foot car precludes facing all vehicles in the same direction,

one vehicle may be reversed to ensure application of tiedowns at a floor angle of 45.

3. Parking brakes must be set and wire-tied or blocked.

4. The transmission select lever must be placed in N (neutral) position and wire-tied or blocked.

5. Open hooks must be secured with wire over the opening to prevent the hook from becoming disengaged.

6. Turnbuckles used to tighten chains must be wired or locked with nuts to prevent the turnbuckles from

turning during transit, unless the turnbuckles are equipped with self-locking devices.

7. When vehicles are shipped in a loaded configuration, the gross vehicle weight rating of each vehicle

must not be exceeded and the proper size and number of tiedowns must be used to secure the vehicles to

the railcar. Proof-tested to a minimum of 27,500 pounds. Attach one chain tiedown to each tiedown shackle

in front and rear. Apply tiedowns from the vehicle shackle to the car tiedown facility. The angle of the

tiedown should be as close as possible to 45, The chains are to be preloaded to the point where the vertical

height of the vehicle is reduced by one inch (see figure 7-5).

GENERAL INSTRUCTIONS

1. When ordering specialized railway equipment, shippers should specify cars equipped with tiedown de-

vices in the quantity and strength as shown in 7-10a. above. When carriers furnish cars that do not have

built-in chains and tensioning devices, chains shown in item B will be used to secure vehicles. Tiedown

chains must be checked for twisted or kinked links before they are applied to the vehicles.

2. Parking brakes must be set and wire-tied or blocked.

3. The transmission select lever must be placed in N (neutral) position and wire-tied or blocked.

4. Open hooks must be secured with wire over the opening to prevent the hook from becoming disengaged.

5. Turnbuckles used to tighten chains must be wired or locked with nuts to prevent the turnbuckles from

turning during transit, unless the turnbuckles are equipped with self-locking devices.

7-10