(1) All the applicable provisions of Part L of this chapter apply to hoisting and rigging while using a crane/derrick. All applicable provisions of Part F-1 of this chapter apply to material handling hoisting equipment when a crane/derrick is not being used.
(2) In addition, subsections (3) through (5) of this section apply regarding the hazards associated with hoisting and rigging.
(a) Crane preshift visual inspection.
(i) Cranes being used in steel erection activities must be visually inspected prior to each shift by a competent person. The inspection must include observation for deficiencies during operation and, as a minimum, must include:
All control mechanisms for maladjustments;
Control and drive mechanism for excessive wear of components and contamination by lubricants, water or other foreign matter;
Safety devices, including boom angle indicators, boom stops, boom kick out devices, anti-two block devices, and load moment indicators where required;
Air, hydraulic, and other pressurized lines for deterioration or leakage, particularly those which flex in normal operation;
Hooks and latches for deformation, chemical damage, cracks, or wear;
Wire rope reeving for compliance with hoisting equipment manufacturer's specifications;
Electrical apparatus for malfunctioning, signs of excessive deterioration, dirt, or moisture accumulation;
Hydraulic system for proper fluid level;
Tires for proper inflation and condition;
Ground conditions around the hoisting equipment for proper support, including ground settling under and around outriggers, ground water accumulation, or similar conditions;
The hoisting equipment for level position; and
The hoisting equipment for level position after each move and setup.
(ii) If any deficiency is identified, an immediate determination must be made by the competent person if the deficiency constitutes a hazard.
(iii) If the deficiency constitutes a hazard, the hoisting equipment must be removed from service until the deficiency has been corrected.
(iv) The operator is responsible for those operations under their direct control. Whenever there is any doubt as to safety, the operator must have the authority to stop and refuse to handle loads until safety has been assured.
(b) A qualified rigger (a rigger who is also a qualified person) must inspect the rigging prior to each shift.
(c) The headache ball, hook or load must not be used to transport personnel, except as provided in (d) of this subsection.
(d) Cranes or derricks may be used to hoist employees on a personnel platform when work under this part is being conducted if all the applicable provisions of Part L of this chapter are met.
(e) Safety latches on hooks must not be deactivated or made inoperable except:
(i) When a qualified rigger has determined that the hoisting and placing of purlins and single joists can be performed more safely by doing so; or
(ii) When equivalent protection is provided in a site-specific erection plan.
(4) Working under loads.
(a) Routes for suspended loads must be preplanned to ensure that no employee works directly below a suspended load except when:
(i) Engaged in the initial connection of the steel; or
(ii) Necessary for the hooking or unhooking of the load.
(b) Whenever workers are within the fall zone and hooking, unhooking, or guiding a load, or doing the initial connection of a load to a component or structure (WAC 296-155-53400
(43)(c)), the following criteria must be met:
(i) Materials being hoisted must be rigged to prevent unintentional displacement;
(ii) Hooks with self-closing safety latches or their equivalent must be used to prevent components from slipping out of the hook; and
(iii) All loads must be rigged by a qualified rigger.
(5) Multiple lift rigging procedure.
(a) A multiple lift must only be performed if the following criteria are met:
A multiple lift rigging assembly is used;
A multiple lift is only permitted when specifically within the manufacturer's specifications and limitations;
A maximum of five members are hoisted per lift;
|Exception: ||Bundles of decking must not be lifted using the multiple lift rigging procedure, even though they meet the definition of structural members in WAC 296-155-702. |
Only beams and similar structural members are lifted; and
All employees engaged in the multiple lift have been trained in these procedures in accordance with WAC 296-155-717
(b) Components of the multiple lift rigging assembly must be specifically designed and assembled with a maximum capacity for total assembly and for each individual attachment point. This capacity, certified by the manufacturer or a qualified rigger, must be based on the manufacturer's specifications with a five to one safety factor for all components.
(c) The total load must not exceed:
The rated capacity of the hoisting equipment specified in the hoisting equipment load charts; and
The rigging capacity specified in the rigging-rating chart.
(d) The multiple lift rigging assembly must be rigged with members:
Attached at their center of gravity and maintained reasonably level;
Rigged from top down; and
Rigged at least seven feet (2.1 m) apart.
(e) The members on the multiple lift rigging assembly must be set from the bottom up.
(f) Controlled load lowering must be used whenever the load is over the connectors.
[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. 13-02-068, § 296-155-704, filed 12/31/12, effective 2/1/13. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.440, 49.17.060, and 29 C.F.R. 1926, Subpart CC. 12-01-086, § 296-155-704, filed 12/20/11, effective 2/1/12. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060 and chapter 49.17 RCW. 10-22-105, § 296-155-704, filed 11/2/10, effective 1/1/11. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. 06-05-027, § 296-155-704, filed 2/7/06, effective 4/1/06. Statutory Authority: RCW 49.17.010, [49.17].040, and[49.17].050 . 02-13-115, § 296-155-704, filed 6/19/02, effective 9/1/02.]