Table 5-1. Bill of Materials for Blocking and Tiedown of the M992 FAASV on the M870 and M172A1 Semitrailers.

TM 55-2350-267-14

(2) Drive or winch the FAASV to the far-

during movement at normal speeds and oper-

ating conditions are provided in figures 5-1 and

thest forward position, against the wooden

5-2.

bumper.

f. Data concerning the application of mate-

e. Tiedowns. Tiedown diagrams compatible

rials required to restrain the vehicle are pro-

with standard loading practices that will offer

vided in table 5-2.

adequate restraint against forces encountered

Table 5-1. Bill of Materials for Blocking and Tiedown of the M992 FAASV on the M870 and M172A1 Semitrailers.

Approximate

Description

Item

quantity

Douglas-fir, or comparable, straight-grain, free from material defects; Fed Spec

Lumber

6 linear feet

MM-L-751: 2- x 4-inch

4- x 4-inch

12 linear feet

Nails

Common, steel; flathead; bright or cement-coated; table X1-b, Fed Spec FF-N-105:

30d

Wire rope

6 x 19, IWRC, improved plow steel; preformed, regular-lay; table X, Fed Spec RR-

62 feet

W-410: 5/8-inch

Wire-rope, U-bolt clips, saddled, single-grip, steel, Crosby heavy-duty, or equal;

Clamps

MIL-STD 16842: 5/8-inch

Utility; -inch-diameter chain link, 12-foot-long, NSN 4010-00-449-6573

Chain*

Ratchet-type with one grabhook and one pear-shaped link, 12-ton-capacity, NSN

Load binders*

3990-00-401-1503

Thimbles

Standard, open-type: 5/8-inch

Anchor, 1 3/8-inch diameter pin, 2-inch opening, NSN 4030-00-162-7545, or equal.

Shackles

*Chains and load binders may be substituted for 5/8-inch wire rope and clamps.

Table 5-2. Application of Materials for Tiedown of the M992 FAASV on the M747 Semitrailer.

Application

No. required

Item

Road wheel chocking (fig 5-3), two pieces of 4- x 4-inch x length-to-fit lumber.

Place one piece on track between inside road wheels and the other piece on track

between outside road wheels. Secure both pieces in place with item B.

Tie cleat (fig 5-7), 2- x 4-inch x length-to-fit lumber. Place across top of item A and

secure to outside of item A with two 30d nails.

Wire rope, 5/8-inch. Attach two complete loops from each M992 lifting eye to outside

tiedown rings on semitrailer. Secure the ends of each loop with four clamps (item

D).

Clamps, 5/8-inch. Secure the overlapping ends of each wire-rope loop with four

clamps. Secure the thimbles with one clamp.

Shackles. Secure one shackle to each lifting eye (two at front and two at rear of

vehicle).

F* & G*

Chains and load binders. Not required if items C and D are used.

Chains and load binders. Secure chain to each front lifting eye with shackles. Guide

each chain through adjacent gooseneck upper rollers. Install load binder over cleat

at front of gooseneck. Ratchet load binder to full extension and attach grabhook

to chain. Tighten chains with load binders.

Chains and load binders. Secure one chain to shackle in each rear lifting eye and

attach to grabhook of load binder attached to the outside tiedown eyes. Tighten

chains with load binders.

*Items F and G may be substituted for items C and D.

5-2