Figure 3-4. Detail of a cable assembly for rail transport. (Table 3-2 and table 3-3)

Figure 3-3. Railcar blocking details. All dimenions are in inches

TM-55-2350-224-14 Locomotive Diesel-Electric Manual
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TM 55-2350-224-14 Figure 3-4. Detail of a cable assembly for rail transport. (Table 3-2 and table 3-3) Table 3-3. Tiedown Procedures for Securing Carriers on Flatcars (fig 3-1) Item Procedure Chain tiedowns Install at indicated locations. The number of chains used will depend on chain size/strength. Use eight chains, NSN 4010–00–803–8858, two for each load binder, or eight chains, NSN 4010-00-443-4845, one for each load binder. When chain-tiedown-equipped railcars are not available, wire rope and wood blocking must be used. Wire rope loops Each tiedown is made from one piece of wire rope. Four 5/8-in. ropes are required for carriers weighing 15,000 to 25,000 pounds, one at each tiedown. Eight 1/2-in. ropes are required for carriers weighing 25,000 to 30,000 pounds, two at each tiedown, using a same-side tiedown pattern. Length as required (12 to 16 feet). Form a complete loop between carrier tiedown provision and railcar stake pocket. The angle between the cables and railcar deck (as viewed from the side) should be as close to 45° as possible. The wire rope ends must overlap at least 24 inches. Tension the wire rope by using two cable grippers and a (3-ton) come-along or cable tightener. Cable clamps For 1/2-in. wire rope, space 1/2-in. cable clamps 3 in. apart. Alternately torque nuts a minimum of 65 ft-lb. For 5/8-in. wire rope, space 5/8-in. cable clamps 3 3/4 in. apart. Alternately torque nuts to a minimum of 95 ft-lb. Thimbles Use thimbles to protect cable at sharp bends. Attach to cable with cable clamps (5/8-in. clamps on 1/2-in. thimbles and 5/8-in. clamps on 5/8-in. thimbles). Blocking Position and nail blocking to railcar as shown in figure 3-2. 3-6

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