TM 55-1425-289-14 in figure 5-1. The bill of materials for blocking and tiedown of the XM1058 truck transporter is shown in table 5-1. Data on the application of these materials are provided in table 5-2. b. Fire Unit. The palletized fire unit can be loaded on a 12-ton, or larger, semitrailer as shown in figures 5-2 and 5-3. A bill of materials for blocking and tiedown of the truck transporter is shown in table 5-3, and data on the application of these materials, table 5-4. Table 5-1. Bill of Materials for Blocking and Tiedown of XM1058 Truck Transporter on Semitrailer Approximate Item Description Quantity Lumber Douglas-fir, or comparable; straight-grain, free from material defects; Fed Spec MM-L-751: 2- x 2-inch 6 linear ft 2- x 4-inch 66 linear ft 2- x 6-inch 22 linear ft 2- x 8-inch 48 linear ft Nails Common, steel, flathead, bright or cement-coated, Fed Spec FF N-105: 12d 172 20d 68 Wire Rope 6 x 19, IWRC; plain steel; pre formed, regular-lay; Fed Spec RR W-410: 1/2-inch 55 ft Clips U-bolt, Crosby heavy-duty, or equal; Fed Spec FF-C-450, Type I, Class 1: 1/2-inch 20 ft Thimbles Commercial grade; standard, 1/2 inch 4 Anti- Neutral barrier material; water chafing proof or burlap; MIL-B-121, or material equal as required Table 5-2. Application of Materials for Blocking and Tied own of XM1058 Truck Transporter on Semitrailer Item No. Required Application 1 8 Chock blocks. Locate beveled end of the block against the wheel. Nail the first piece to the trailer floor with five12d nails. Nail each additional piece with four 20d nails. 2 2 Rubbing Strip, 2- x 6- x 36-inch. Position on the edge of the chock block, and nail to the lower piece (item 3) with five 12d nails. 3 2 Side blocks, 2- x 4- x 36-inch (tripled). Nail the first piece to the trailer floor with five 12d nails. Nail each additional piece in a like manner. 4 2 Rubbing strip, 2-inch x 6-inch + 8-foot 0- inch. Nail to the lower piece (item 5) with one 12d nail spaced every 8 inches. 5 2 Side blocks, 2-inch x 4-inch x 8-foot 0-inch (tripled). Nail the first piece to the trailer floor with one 12d nail spaced every 8 inches. Nail each additional piece in a like manner 6 2 Wire rope, 1/2-inch-diameter, 11.5-ton. In stall cable to the approximate angle shown Table 5-2. Continued Item No. Required Application 6 (cont) in figure to form a complete loop around the lading rear mainframe member and to pass through the trailer tiedown facility. Cau- tion: Do not tie cable to lading lofting de vices. Note: Cable of a larger size may be used when specified cable is not available. 7 10 Clips, 1/2-inch-diameter. Four per cable and one per thimble. See item 10. 8 2 Wire rope. 1/2-inch-diameter, 11.5-ton. In stall cable to the approximate angle shown in figure to form a complete loop around the lading rear mainframe member and to pass through the trailer tiedown facility. Caution: Do not tie to lading lifting devices. Note: Cable of a larger size may be used when specified cable is not available. 9 10 Clips, 1/2-inch-diameter; four per cable and one per thimble. See item 10. 10 4 Thimbles, standard, 1/2-inch; one per trailer tiedown facility. Secure to wire rope with one clip per thimble. Note: A standard thimble as specified can be secured to a cable with a 1/2-inch clip. However, if desired, or if the 1/2-inch thimble being used is of a type that cannot be secured to a cable with a 1/2 inch clip, a 5/8-inch clip may be used. Note that an "open pattern" thimble is recom-- mended. 11 Waterproof paper or burlap of sufficient size to position under and extend 2 inches above rubbing strips (items 2 and 4). Table 5-3. Bill of Materials for Blocking and Tiedown of ROLAND Fire Unit on Semitrailer Approximate Item Description Quantity Chain General service S-leg, high-tensile, 1/2-inch, 10-foot length, with two grabhooks; 16,000-lb safe working load. 4 Load Type I, plain, 18-1/2-inch; operating binder s lever, with two grabhooks designed for 1/4- to 1/2-inch chain; 16,000-lb safe working load. Fed Spec GGG- B-325A; NSN 3990-00-171-9774 4 Table 5-4. Application of Materials for Blocking and Tiedown of ROLAND Fire Unit on Semitrailer Item No. Required Application NA 2 Chains. Secure a chain to each front tiedown ring. Crisscross the chains, and attach the ends of the chains to the trailer. NA 2 Load binders. Tighten the front chains with the load binders. NA 2 Chains. At the aft end of the fire unit, attach one end of each chain to the trailer. Pass the chain over the top of the fire unit and in back of the lofting fittings, and attach the chains to the trailer. NA 2 Load binders. Tighten the aft chains with the load binders. 5-2