I just happen to be talking to a Illinois State Trooper yesterday and he told me the total WLL of the binders/chains must equal 1/2 the weight of the piece of equipment you are hauling....BUT after careful examination of the Federal DOT book, it says different from how I read it.
Check out 393.106 d-1....looks to me like they changed it and now you can only count HALF of the total WLL. That means on 5 chains/binders grade 70 the WLL total divided by 1/2 is only 28,250lbs, which means I would have to have 10 chains on a 450D.
Did I read this wrong or what!! Now you have to have a math degree to drive a truck.
§393.106 What are the general requirements for securing articles of cargo?
[Editor’s Note: The following paragraph is revised effective July 24, 2006.]
(a) Applicability. The rules in this section are applicable to the transportation of all types of articles of cargo, except commodities in bulk that lack structure or fixed shape (e.g., liquids, gases, grain, liquid concrete, sand, gravel, aggregates) and are transported in a tank, hopper, box or similar device that forms part of the structure of a commercial motor vehicle. The rules in this section apply to the cargo types covered by the commodity-specific rules of § 393.116 through § 393.136. The commodity-specific rules take precedence over the general requirements of this section when additional requirements are given for a commodity listed in those sections.
(b) General. Cargo must be firmly immobilized or secured on or within a vehicle by structures of adequate strength, dunnage or dunnage bags, shoring bars, tiedowns or a combination of these.
(c) Cargo placement and restraint. (1) Articles of cargo that are likely to roll must be restrained by chocks, wedges, a cradle or other equivalent means to prevent rolling. The means of preventing rolling must not be capable of becoming unintentionally unfastened or loose while the vehicle is in transit.
(c)(2) Articles or cargo placed beside each other and secured by transverse tiedowns must either:
(c)(2)(i) Be placed in direct contact with each other, or
(c)(2)(ii) Be prevented from shifting towards each other while in transit.
[Editor’s Note: Paragraph (d) and its subparagraphs are revised effective July 24, 2006.]
(d) Minimum strength of cargo securement devices and systems. The aggregate working load limit of any securement system used to secure an article or group of articles against movement must be at least one-half times the weight of the article or group of articles. The aggregate working load limit is the sum of:
(d)(1) One-half of the working load limit of each associated connector or attachment mechanism used to secure a part of the article of cargo to the vehicle; and
(d)(2) One-half of the working load limit for each end section of a tiedown that is attached to an anchor point.
[67 FR 61227, Sep. 27, 2002; 71 FR 35833, June 22, 2006]