(a) In running ropes, 6 randomly distributed broken wires in 1 rope lay, or 3
broken wires in 1 strand in 1 rope lay. A rope lay is the length along the rope in which 1
strand makes a complete revolution around the rope.
(b) In pendants or standing ropes (ropes bearing the entire load and subjected
to constant pressure and surge shocks), evidence of more than 1 broken wire in 1
(c) Abrasion, scrubbing, or peening causing loss of more than 1/3 of the original
diameter of the outside wires.
(d) Severe corrosion.
(e) Severe kinking, severe crushing, or other damage resulting in distortion of
the rope structure.
(f) Heat damage resulting from a torch or arc caused
(g) Reduction from normal diameter of more than 3/64 inch for diameters up to
and including 3/4 inch; 1/16 inch for diameters 7/8 inch to 1-1/8 inches; 3/32 inch for
diameters 1-1/4 inches to 1-1/2 inches. Marked reduction in diameter indicates
deterioration of the core resulting in lack of proper support for the load-carrying
strands. Excessive rope stretch or elongation may be an indication of internal
(h) Bird-caging or other distortion resulting in some members
structure carrying more load than others.
(i) Noticeable rusting or development of broken wires in the
attachments. If this condition is localized in an operating rope, the section in question
can be eliminated by making a new attachment. This may be done rather than replacing
the entire rope.
(2) Wire ropes used to support, suspend, bear, or control forces and weights
involved in the movement and utilization of tubs, cars, chairs, seats, gondolas, other
carriers, the sweeps or other supporting members of a ride or device shall not be
lengthened or repaired by splicing.
(3) Couplings, sockets, and fittings shall be of a design and type approved by
the board and installed in accordance with the instructions or specifications of
the designer, engineer, or manufacturer.
History: 1979 AC; 2003 AACS.
R 408.835 Wooden components.
Rule 35. Footings, splices, uprights, track timbers, ledgers, sills, laps, bracing,
flooring, and all other wooden components of rides, and structures shall be inspected
for deterioration, cracks, or fractures.Wooden members found to be defective shall be
replaced with material of equal or greater strength and capacity. Repairs and
fixed roller coasters shall be made in accordance with
recommendations of the manufacturer.
History: 1979 AC; 1983 AACS.