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Subchapter 7. General Industry Safety Orders
Group 13. Cranes and Other Hoisting Equipment
Article 94. Hydraulic Cranes and Excavators

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§4954. General Operating Requirements.

(a) When required by certified agent's instructions, outriggers shall be set so that wheels or crawler tracks within the boundary of the outriggers shall be relieved of all weight by the outrigger jacks or blocking.

(b) Telescopic booms that have an indicator shall show the boom length from minimum to maximum and be visible to the operator from the operator's position at the controls.

(c) A boom hoist disconnect shut-off or hydraulic relief shall be provided to automatically stop the boom hoist when the boom reaches a predetermined high angle.

(d) At least one of the following stops shall be provided to resist the boom falling backwards:

(1) A fixed or telescoping bumper.

(2) A shock absorbing bumper.

(3) Hydraulic boom elevation cylinder(s).

(e) A load rating chart and/or label(s) shall be located on the crane to be available to the operator from the operator's position at the control stand. It shall include the applicable portions of Section 4923 and the maximum loads permitted during actual boom telescoping operation.

NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.


1. Amendment filed 8-29-86; effective thirtieth day thereafter (Register 86, No. 39).

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