TM-55-2350-215-10-15 M60 Series Transportability Guidance Download
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TM 55-2350-215-10-15 d. Suspension Characteristics. The HET-loaded transport vehicle produces lower impact forces on highway bridges when compared with other types of similarly loaded highway vehicles. However, the appropriate State permit official should determine the system's potential detrimental effect upon each highway route requested by the major command. e. MTMC Assistance. Assistance in obtaining approvals for highway movement of the loaded transport system can be obtained from the Commander, Military Traffic Management Command, ATTN: MT-SA, Washington, DC 20315, when highway movement can be certified as essential for national defense and no other transportation mode can be utilized. f. Materials. The bill of materials for blocking and tiedown of the M60-series vehicle on the M747 semitrailer is shown in table 5-1. g. Loading. (1) The vehicle may be driven to the tiedown position on the semitrailer or towed on the semitrailer over the ramp by use of the winches on the HET truck tractor. (2) The M747 inside-track restraints must be adjusted to receive tracks of the vehicle. (3) After the vehicle is placed at the tiedown position, the vehicle transmission must be placed in the neutral position, and the brakes should be set. (4) A tiedown diagram compatible with standard loading practices that will offer adequate restraint against the forces encountered during movements at normal speeds is provided in figure 5-1. (5) Data concerning the application of materials required to restrain the vehicle are provided in table 5-2. Table 5-1. Bill of Materials for Blocking and Tiedown of the MO60-Series Tanks on the M747 Semitrailer Item Description Approximate Quantity Lumber Douglas fir, or comparable, straight-grain, free from material defects; Fed Spec MM-L-751: 2- x 24 linear ft 4-in. 6- x 6-in. 36 linear ft Nails Common steel; flathead; bright or cement-coated; table X1-b, Fed Spec FF-N-105:20d 98 Wire rope 6 x 19, IWRC; improved plow steel; preformed, regular-lay; table X, Fed Spec RR-W410: 5/8in. 64 ft. Clamps Wire rope, U-bolt clips, saddled, single-grip, steel, Crosby heavy-duty, or equal; MIL-STD 16842: 16 5/8in. Chain*...... 1/2 in 10-ft-long,-type-I, grade C, class 2; welded steel, high-test chain; Fed Spec RR-C-271; with grabhooks equal to or better than the strength of the chain; not required if wire rope and 8 clamps are used Loadbinders*.. . Double-hook, heavy duty, 4-in, eccentric takeup, with chain grabhooks, for 1/4- to 1/2-in. chain; 8 16,000-lb safe working rating; 18 1/2-in. large lever, with two swivels, NSN 3990-00-171-9744; not required if wire rope and clamps are used Thimbles Standard, open-type, 5/8 in. 8 Shackles Anchor 1 3/8 in.-diameter pin, 2-in. opening, NSN 4030-00-162-7545, or equal 8 *Chains and loadbinders may be substituted for 5/8-in. wire rope and clamps. 5-4