Section R. 408.42809 - Personnel hoistingRule 2809.
(1) All the provisions of construction safety standard Part 26. "Steel Erection" being R 408.42601 to R 408.42655, which is referenced in R 408.42806, apply to all hoisting.(2) Riding the headache ball is prohibited except when the work area is inaccessible or hazardous to reach by other means, a maximum of 2 connectors may ride the headache ball to and from the workstation with the knowledge and consent of the employer or the employer's designated representative. The connector or connectors may be lifted to the workstation only when all of the following conditions exist: (a) Connectors riding a load line standing platform shall be protected from falling by a positioning device system or a personal fall arrest system as prescribed in construction safety standard Part 45. "Fall Protection," R 408.44501 to R 408.44502 which is referenced in R 408.42806.(b) The connector or connectors and his or her immediate supervisor, who shall be a competent person, and the operator who will perform the lift shall verbally agree and certify in writing that using the load line standing platform is the safest alternative. They shall plan the lift together to minimize the transport distance. A minimum distance of 20 feet shall be maintained between the load line standing platform and the top sheave.(c) A load line standing platform shall be a minimum of 3/8 of an inch thick steel plate not less than 12 inches nor more than 18 inches in diameter and shall provide means for slip resistant footing. The platform shall be secured in such a manner to prevent tipping and shall be placed between the headache ball and the wedge socket.(See figure 1.) As an alternative, a shackle rated not less than 25 tons may be used. (See figure 2.) Click Here To View Image
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(d) No rigging or load shall be attached to the crane or derrick during the use of a load line standing platform by the connector or connectors.(e) The maximum rate of travel for the connector or connectors riding the load line standing platform shall be 100 feet per minute. Free-spooling and live booms are prohibited. Controlled load lowering shall be used when the load line standing platform is used to lower the connector or connectors.(f) There shall be a communication system between the connector or connectors on a load line standing platform and the operator of the crane or derrick. The system may be hand signals or a closed 2-way selective frequency radio system. Hand signals shall be followed according to appendix A of this part.(g) An operator of a crane or derrick shall: (i) Not be authorized to raise or lower the connector or connectors on a load line standing platform unless the operator is certified by the national commission for the certification of crane operators or an equivalent crane certification organization.(ii) Be trained in all of the provisions of R 408.42809(2) before being allowed to transport the connector or connectors on a load line standing platform.(h) When a load line standing platform is in use by the connector or connectors, the operator of a crane or derrick shall maintain the minimum distance from an energized power transmission or distribution line as required in table 1, as follows: | VOLTAGE | MINUMUM CLEARANCE |
| Up to 50 kV | 20 feet |
| Over 50 kV | 20 feet + 0.8 inch per kV over 50 kV |
(i) The load line of a crane or derrick that is used to raise or lower the connector or connectors on a load line standing platform shall have a safety factor of 10 for the anticipated load, and be equipped with a swivel to prevent any rotation of the load line standing platform. A minimum of 1/2-inch diameter load line shall be used.(j) Neither the load line standing platform nor the boom shall be lowered below the point where less than 3 full wraps of the wire rope remain on their respective drums.(k) A crane or derrick that is used to raise or lower a load line standing platform shall be set level according to the crane or derrick manufacturer's specifications. The travel lock shall be engaged on a crane when the load line standing platform is in use.(l) A crane that is equipped with outriggers shall have the beams and jacks fully extended to provide maximum stability and the floats shall have a stable bearing when the load line standing platform is in use by the connector or connectors. A crawler crane shall have its crawlers fully extended when the load line standing platform is in use.(m) Where a crane or derrick will be used to elevate the connector or connectors on the load line standing platform to an area where there has been no previous lift of structural members, a trial lift shall be performed and consist of positioning the load line standing platform to the position it is to be used with an assumed minimum anticipated load of 1,000 pounds. The operator shall determine that all configurations necessary to reach the work location will allow the crane or derrick to remain under the 50% limit of the hoisting capacity; that all systems, controls, and safety devices are activated and functioning properly; and that interferences do not exist. This will be done at each set-up location of a crane or derrick prior to elevating the connector or connectors. APPENDIX A
HAND SIGNALS (Non-Mandatory)
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Mich. Admin. Code R. 408.42809