(1) Pins must be connected to the choking eye of the sling when a shackle is used in a choker hitch.
(2) Screw pins must be:
(a) Fully engaged, with the shoulder in contact with the shackle body (see Figure 16, Typical Shackle Components).
(b) Rigged in a way that keeps the pin from unscrewing while in use.
(c) Secured from rotation or loosening if used for long-term installations.
(3) Cotter pins must be kept in good working condition.
(4) If the shackle is side loaded, you must reduce the rated load, according to the recommendations of the manufacturer or a qualified person (see Figure 17, Side Loading).
See Figure 18, Shackle Types, for examples of types of shackles covered by this rule.
Figure 16
Typical Shackle Components
Figure 17
Side Loading
Side Loading Angle, deg.
% Rated Load Reduction
In-line (0) to 5
6 to 45
46 to 90
Over 90
Not permitted unless authorized by manufacturer or qualified person
Figure 18
Shackle Types
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 16-09-085, § 296-155-33905, filed 4/19/16, effective 5/20/16. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060 and chapter 49.17 RCW, and 29 C.F.R. 1926, Subpart CC. WSR 13-02-068, § 296-155-33905, filed 12/31/12, effective 2/1/13.]
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