Sec. 6-Fig. 88-B (Rev.-11-1974)
(Redrawn-8-1972)
MILITARY VEHICLES WEIGHING 4,000 LBS. AND UNDER, WITH OR WITHOUT WINCH, EMPTY, FLAT CARS
EQUIPPED WITH CENTER TIE-DOWN RAILS.
Item No. of Pcs.
Description
A
Brake Wheel Clearance, see Fig. 2, Sec. 1.
B
4 ea. unit.
3/8 in. dia. alloy steel chain proof tested to minimum of 13,200 lbs., for vehicles 8,500 lbs. or
less.
3/8 in. dia. alloy steel chain, extra strength, proof tested to minimum of 18,000 lbs., for
vehicles over 8,500 lbs. to 16,000 lbs., inclusive.
½ in. dia. alloy steel chain proof tested to minimum of 22,500 lbs. for vehicles over 16,000
lbs. to 25,000 lbs., inclusive.
½ in. dia. alloy steel chain, extra strength, proof tested to minimum of 27,500 lbs. for
vehicles over 25,000 lbs. to 40,000 lbs., inclusive.
GENERAL INSTRUCTIONS
(1)
Shippers should specify cars equipped with tie-down devices in the quantity shown in Item "B" when ordering
specialized railway equipment. When carriers furnishes cars that do not have built-in chains and tensioning devices,
chains and turnbuckles of appropriate size and strength will be used in lieu thereof for securement of vehicles. Load
binders are not to be used in lieu of turnbuckles to tension tie-down chains.
(2)
Vehicles must face in the same direction and be uniformly spaced along the length of the car to allow sufficient
space of each end of the car and between the vehicles for securement. Apply tie-downs parallel to each other at the
same end of the vehicle and from the vehicle tie-down point to the car tie-down facility. The angle of the tie-down must
be as close to 45° as possible. When length of vehicles, loaded on a 75 ft. car preclude facing all in the same direction,
one vehicle may be reversed to ensure application of tie-down at a floor angle of 45°.
(3)
Hand brakes must be set.
(4)
Gear Shift levers on vehicles equipped with automatic or standard transmissions must' have the gear shift lever
wire-tied in the neutral position.
(5)
Open hooks must be secured with wire over the opening to prevent the hook form becoming disengaged from
the chain link to which it is secured.
(6)
Turnbuckles used to tighten chains must be wired or locked to prevent them from turning during transit unless the
turnbuckles are equipped with self-locking devices.
(7)
When vehicles are shipped in a loaded configuration, the gross weight of the vehicle and cargo combined must
be determined in order to assure that the proper size and/or number of tie-downs are used to secure the vehicles to the
rail car. The "approximate weight" column of the tables below, may be used to determine the new restraint requirements
Imposed by the additional weight of the cargo.
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