Table 35. Procedures for Wire Rope Tiedown

TM 55-2350-252-14

Table 35. Procedures for Wire Rope Tiedown

Item

Procedure

Wire rope loops

Each tiedown is made from one piece of 5/8-inch wire rope. Cut length as required. (Need a maximum of

20 feet per tiedown.) Form a complete loop between BFVS tiedown provision and appropriate railcar

stake pocket. The angle between the cables and trailer deck (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 chain hoist or come-along.

Cable Clamps

Space clamps 3 3/4 inches apart. Use 5/8-inch cable clamps, and torque nuts alternately to about 95 foot-

pounds.

Thimbles

Use thimbles to protect cable at sharp bends. Attach to cable with a %-inch cable clamp.

**CAUTION**

Do not use the sprocket, idler, tracks, or final drive assemblies as tiedown points on the BFVS.

NOTE

Cable clamp nuts must be torqued to at least 65 foot-pounds to develop full cable loop breaking

strength of 36,800 pounds. To get the correct torque, apply torque alternately to both nuts.

Table 36. Bill of Materials for Chain Tiedown

Item

Description

Chain Load Binders

1/2-inch chain (options 4 through 7): 1/2-inch diameter, 13,750 pounds minimum WLL 3/8- to 1/2-in, 13,750

pounds minimum WLL

Chain Load Binders

3/8-inch chain (options 8 through 11): 3/8-inch diameter, 9,000 pounds minimum WLL 3/8- to Winch, 9,000

pounds minimum WLL

3-3