Subchapter 7. General Industry Safety Orders
Group 13. Cranes and Other Hoisting Equipment

§4881. General.

(a) Posted warnings. Posted warnings required by Group 13 as well as those supplied with the equipment by the manufacturer shall be maintained in legible condition.

(b) All exhaust pipes, turbochargers, and charge air coolers shall be insulated or guarded where inadvertent contact by employees (except for maintenance and repair employees) is possible in the performance of normal duties.

(c) Load hooks, ball assemblies and load blocks shall be of sufficient weight to overhaul the line from the highest hook position for boom or boom and jib lengths and the number of parts of the line in use.

(d) Hook and ball assemblies, load blocks.

(1) Hook and ball assemblies and load blocks on mobile cranes shall be marked with their rated capacity and weight.

(2) Hook and ball assemblies and load blocks shall be equipped with latches.

Exception: Hooks without latches, or with latches removed or disabled, shall not be used unless a qualified person has determined that it is safer to hoist and place the load without latches (or with the latches removed/tied-back).

(e) Cabs (Supplemental requirements for cranes in construction).

Equipment with cabs shall meet the following requirements:

(1) Cabs shall be designed with a form of adjustable ventilation and method for clearing the windshield (when provided) for maintaining visibility and air circulation. Examples of means for adjustable ventilation may include an air conditioner or window that can be opened (for ventilation and air circulation); examples of means for maintaining visibility may include heater (for preventing windshield icing), defroster, fan, or windshield wiper.

(2) Cab doors (swinging, sliding) shall be designed to prevent inadvertent opening or closing while traveling or operating the machine. Swinging doors adjacent to the operator shall open outward. Sliding operator doors shall open rearward.

(3) Windows (if provided) or other openings.

(A) Windows or other openings shall be provided in front and on both sides of the operator with visibility forward and to either side. Forward vertical visibility shall be sufficient to give the operator a view of the boom point at all times.

(B) Windows may have sections designed to be opened or readily removed. Windows with sections designed to be opened shall be designed so that they can be secured to prevent inadvertent closure.

(C) Windows shall be of safety glass or material with similar optical and safety properties, which introduce no visible distortion or otherwise obscure visibility that interferes with the safe operation of the equipment.

(4) A clear passageway shall be provided from the operator's station to an exit door on the operator's side.

(5) Areas of the cab roof that serve as a workstation for rigging, maintenance or other equipment-related tasks shall be capable of supporting 250 pounds.

Credits

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

History

1. New section filed 7-26-2022; operative 7-26-2022 pursuant to Government Code section 11343.4(b)(3) (Register 2022, No. 30). Filing deadline specified in Government Code section 11349.3(a) extended 60 calendar days pursuant to Executive Order N-40-20 and an additional 60 calendar days pursuant to Executive Order N-71-20.