EFFECTIVE 04/04/94 / 7109.19,30
Page 1 of 3
FOREST SERVICE HANDBOOK
Portland, Oregon
TITLE 7109.19 - FLEET EQUIPMENT MANAGEMENT HANDBOOK
R-6 Supplement No. 7109.19-94-2
Effective April 4, 1994
POSTING NOTICE. Supplements are numbered consecutively by title and calendar year. Post by document name. Remove entire document, if one exists, and replace with this supplement. The last R-6 Supplement to this handbook was 7109.19-94-1.
This supplement supersedes Supplement No. 1.
Superseded New
Document Name (Number of Sheets)
7109.19,303
Page Code
31.3--1,--21
Digest:
31.3 - Provides direction for securing loads (including equipment) during transportation.
/s/ John E. Lowe
JOHN E. LOWE
Regional Forester
FSH 7109.19 - FLEET EQUIPMENT MANAGEMENT HANDBOOK
R-6 SUPPLEMENT 7109.19-94-2
EFFECTIVE 04/04/94
CHAPTER 30 - USE AND STORAGE
31 - VEHICLE LOADINGS.
31.3 - Trailer Towing Requirements. The need to properly secure equipment during transportation is critical. A poorly secured load can be extremely costly in both property and to life. The following text and exhibit give guidelines for tie-down chains, binders, and recommended truck and trailer combinations.
5. Other Requirements.
d. Exhibit 01, Requirements for Safe Transportation of Construction Equipment gives the size, number and other related information required in transporting various types of construction equipment. Strengths are based on the U.S. Department of Transportation Regulations on Securement, Section 393.102. Some lighter equipment, as shown, may be tied down with only 3/8-inch chain. Generally, 1/2-inch chain is required and can be used in all situations by adding additional chains to obtain the necessary strength. It is imperative that High-test or Transport steel chain be used. High-test always has an HT embedded in a link every 3 feet. Transport chains usually have a TR embedded in a link every 3 feet. Alloy chain is stronger and more expensive than High-test or Transport chain. General purpose chain, such as BBB and Proof Coil, are not acceptable due to low working-load limits. Chains currently available from GSA supply are not acceptable, since they do not meet the working-load limits. Except for one 3/8-inch chain, they are all general purpose chains. The BBB and Proof Coil general purpose chains are not recommended for any critical applications.
Several new chains are now being manufactured which show high strength to weight ratios and load limits that surpass Transport of High-test specifications. These allow smaller size chains which meet the same strength. System 7, manufactured by the Campbell Chain Company, is one such chain. It is allowable to use 3/8-inch System 7 (or a comparable other special High-strength chain) in place of those shown in exhibit 01. For example, if you need to secure a motor grader, a minimum of six 3/8-inch System 7 type chains shall be an approved alternative to the 1/2-inch Transport of High-test chain. Any 3/8-inch special type chains, like the System 7, shall have a minimum 26,000 pounds breaking strength.
Hooks used on chains shall be forged-type grab hooks. Slip hooks are not acceptable. Hooks with clevis pins are acceptable and allow chains to be made up in the proper lengths. Chain-saver hooks are also acceptable although more expensive than grab hooks.
The binders used shall be forged type with a minimum tensile strength of 26,000 pounds. GSA binders are generally rated at 15,000 pounds and would be acceptable only for agricultural tractors. Commercially available binders should be used on all applications to avoid a mix-up on heavier equipment. Ratchet-type binders are generally not of high enough tensile strength to be used. Binders shall NOT be fastened directly to track pads of track machines.
31.3 - EXHIBIT 01 IS A SEPARATE DOCUMENT.