Sec. 6-Fig. 304 (New-8-1972)
TRUCK, CARGO, ARTICULATED, 1 ¼ TON, 6X6, M561 WITH OR WITHOUT WINCH, BI-LEVEL CUSHIONED
Item No. of Pcs.
Brake Wheel Clearance. See Fig. 2, Sec. 1.
4 ea. unit
Chain tie-down device with 46 inch alloy chain with a minimum proof test of 8500 pounds.
Chain tie-down device with 3/ inch high test chain having a minimum proof test of 8500 pounds.
Pass one chain tie-down through each of the vehicle tie-down shackles, front and rear. Attach
hooks into an appropriately located link on each chain. Further tensioning should be
accomplished by utilizing the tensioning device supplied with the car.
Tension each chain until a slight depression is noted in the vehicle suspension system. After chains have been
tensioned, they should be hit sharply with a hammer to relieve any binding. Retention chains if required.
Shippers should specify cars equipped with tie-down devices in the quantities and with chain strengths specified
in Item "B" and with decks of sufficient capacities to withstand the total load of vehicles loaded thereon.
Trucks must face in the same direction and be uniformly spaced along the length of the rail car to allow sufficient
space between the trucks and at each end of the rail car for proper securement.
Tie-down chains must be free from twisted or kinked links, prior to their application to the vehicle.
Tie-down chains shall be secured parallel to each other at the same end of the vehicle and so placed that the
chain angles will be approximately 45 degrees outboard from the truck clevis to the tie-down device. After the
tie-down chains are tensioned, they shall be hit sharply with a hammer to relieve any binding and the tie-down
chains retensioned, if necessary. There must be at least one full wrap of chain around the tensioning device
drum with the ratchet locking device in position.
Truck transmission gear must be set in "neutral" position and "wire tied" and hand brake firmly set before rail car
is released for transit.
Tie-downs when installed shall not come in contact with electrical wiring, vehicle controls or other appurtenances.
See General Rules 1, 4, 5, 7, 15, 19-A, 19-B and 19-C for further details.
*Not shown on drawing.