Table 5-1. Bill of Materials
and HMMH
for Blocking
on the M345
T M
5 5 - 2 4 2 0 - 2 2 4 - 14
and Tiedown of the SEE, HME,
Trailer (Fig 5-1)
4
Load binders
Approximate
Item
Description
Quantity
*Chains
120-inch-long x 1/2-inch-diameter, high-test chain (working load limit 9,200
pounds), type I, grade C, class 2; welded steel, Fed Spec RR-C–271; with two
grabhooks equal to or better than the strength of the chain
Double-hook, heavy-duty, eccentric takeup with chain grabhooks for 1/4- to
1/2-inch chain, working load limit 9,200 pounds, type II, class 1, style C; Fed
Spec GGG-B-325B
4
*1/2-inch wire rope with U-bolt clamps (4 ea) and thimbles (4 ea) may be substituted for 1/2-inch chain.
Table 5-2. Application of Materials for Blocking and Tiedown of the SEE, HME,
and HMMH on the M345 Trailer (Fig 5-1)
Item
No. Required
Application
A
4
Chain. Run one end of chain through tiedown provision and the other end through
trailer tiedown ring. Secure both ends of chain to load binder (item B) and then secure
the load binder. Wire-tie load binder handle in closed position. (Repeat procedure at all
four tiedown provisions.)
B
4
Load binder. Secure grabhooks to chains, and remove slack with eccentric takeup.
5-3
