Cal. Code Regs. Tit. 8, § 1655 - Pump Jack Scaffolds
(a) Pump jack scaffolds shall:
(1) Be limited to a maximum working load of
500 pounds; and
(2) Have a Safety
Factor of at least four times the maximum intended load.
(3) The manufactured components shall not be
loaded in excess of the manufacturer's recommended limits. (See Plate B-33,
Appendix)
(b) Pump jack
brackets, braces, and accessories shall be fabricated from metal plates and
angles. Each pump jack bracket shall have two positive gripping mechanisms to
prevent any failure or slippage.
(c) The platform bracket shall be fully
decked and the planking secured. Planking, or equivalent, shall conform with
Section 1637.
(1) When wood scaffold planks are used as
platforms, poles used for pump jacks shall not be spaced more than 10 feet
center to center. When fabricated platforms are used that fully comply with all
other provisions of this Order, pole spacing may exceed 10 feet center to
center.
(2) Poles shall not exceed
30 feet in height.
(3) Poles shall
be secured to the work wall by rigid triangular bracing, or equivalent, at the
bottom, top, and other points as necessary, to provide a maximum vertical
spacing of not more than 10 feet between braces. Each brace shall be capable of
supporting a minimum of 225 pounds tension or compression.
(4) For the pump jack bracket to pass bracing
already installed, an extra brace shall be used approximately 4 feet above the
one to be passed until the original brace is reinstalled.
(d) All poles shall bear on mud sill or other
adequate firm foundations.
(e) Pole
lumber shall be two 2 x 4's, of Douglas fir, or equivalent, straight-grained,
clear, free of cross-grain, shakes, large loose or dead knots, and other
defects which might impair strength.
(f) When poles are constructed of two
continuous lengths, they shall be 2 x 4's, spiked together with the seam
parallel to the bracket, and with 10d common nails, no more than 12 inches
center to center, staggered uniformly from opposite outside edges.
(g) If 2 x 4's are spliced to make up the
pole, the splices shall be so constructed as to develop the full strength of
the member.
(h) Not more than two
employees shall be permitted at one time upon a pump jack scaffold between any
two supports.
(i) Pump jacks
scaffolds shall be provided with standard guardrails as described in Article 16
but no guardrail is required when safety belts with lanyards are provided for
and used by employees.
(j) When a
work bench is used at an approximate height of 42 inches, the top guardrail may
be eliminated, if the work bench is fully decked, the planking secured, and is
capable of withstanding 200 pounds load in any direction.
(k) Employees shall not be permitted to use a
work bench as a scaffold platform.
Notes
2. Amendment filed 7-24-87; operative 8-23-87 (Register 87, No. 33).
Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
2. Amendment filed 7-24-87; operative 8-23-87 (Register 87, No. 33).
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