67 Pa. Code § 159.4 - Requirements
(a)
Size
and construction. Each tire shall be designed to fit each rim
specified for its size designation in each reference cited in the definition of
test rim in §
159.3 (relating to
definitions).
(b)
Performance requirements. Performance requirements shall be as
follows:
(1)
General. Each
tire shall conform to each of the following:
(i) It shall meet the requirements specified
in paragraph (2) for its tire size designation, type and maximum permissible
inflation pressure.
(ii) Its
maximum permissible inflation pressure shall be either 32, 36, 40, or 60
p.s.i., or 240, 280 or 300 KPa.
(iii) Its load rating shall be that specified
in Table I of Appendix A of this chapter for its size designation, type and
each appropriate inflation pressure.
(iv) If manufactured on or after August 1,
1968, it shall incorporate a tread wear indicator that will provide a visual
indication that the tire has worn to a tread depth of 1/16 inch.
(v) It shall, before being subjected to
either the endurance test procedure specified in §
159.5(d)
(relating to test procedures) or the high speed performance procedure specified
in §
159.5(e), exhibit
no visual evidence of tread, sidewall, ply, cord, innerliner, or bead
separation, chunking, broken cords, cracking or open splices.
(vi) It shall meet the requirements of
paragraph (2)(v) and (2)(vi) when tested on a test wheel described in §
159.5(d)(2)(i)
(relating to test procedures), either alone or simultaneously with up to five
other tires.
(2)
Test requirements. Test requirements shall be as follows:
(i)
Test sample. For each
test sample the following shall be used:
(A)
One tire for physical dimensions, resistance to bead unseating, and strength,
in sequence.
(B) Another tire for
tire endurance.
(C) A third tire
for high speed performance.
(ii)
Physical dimensions.
Each tire, when measured in accordance with §
159.5(a) shall
conform with each of the following:
(A) Its
actual section width and overall width shall not exceed by more than 7.0% the
section width specified in Table I of Appendix A for its size designation and
type.
(B) Its size factor shall be
at least as large as that specified in Table I of Appendix A for its size
designation and type.
(iii)
Tubeless tire resistance to
bead unseating. When tested in accordance with §
159.5(b), the
applied force required to unseat the tire bead at the point of contact is less
than:
(A) 1,500 pounds for tires with a
designated section width of less than 6 inches.
(B) 2,000 pounds for tires with a designated
section width of 6 inches or more but less than 8 inches.
(C) 2,500 pounds for tires with a designated
section width of 8 inches or more, using the section width specified in Table I
of Appendix A for the applicable tire size designation and
type.
(iv)
Tire
strength. Each tire shall meet the requirements for minimum breaking
energy specified in Table II of Appendix A when tested in accordance with
§ 159.5(c).
(v)
Tire
endurance. When the tire has been subjected to the laboratory
endurance test specified in §
159.5(d) using a
test rim that undergoes no permanent deformation and allows no loss of air
through the portion that it comprises of the tire-rim pressure chamber:
(A) There shall be no visual evidence of
tread, sidewall, ply, cord, innerliner, or bead separation, chunking, broken
cords, cracking or open splices.
(B) The tire pressure at the end of the test
shall be not less than the initial pressures specified in §
159.5(d)(1)(i).
(vi)
High speed performance. When the tire has been subjected to
the laboratory high speed performance test specified in §
159.5(e), using a
test rim that undergoes no permanent deformation and allows no loss of air
through the portion that it comprises of the tire rim pressure chamber, the
tire shall meet the requirements set forth in subparagraph (v)(A) and
(B).
(c)
Labeling requirements. Labeling requirements shall be as
follows:
(1) Except as provided in paragraphs
(2) and (3), each tire shall have permanently molded into or onto both
sidewalls, in letters and numerals not less than 0.078 inches high, the
information shown in subparagraphs (i) through (vii). On at least one sidewall,
the information shall be positioned in an area between the maximum section
width and bead of the tire. However, in no case shall the information be
positioned on the tire so that it is obstructed by the flange of any rim
designed for use with that tire under the provisions of this chapter and
Standard No. 571.110.
(i) One size
designation, except that equivalent inch and metric size designations may be
used.
(ii) Maximum permissible
inflation pressure.
(iii) Maximum
load rating.
(iv) The generic name
of each cord material used in the plies, both sidewall and tread area, of the
tire.
(v) Actual number of plies in
the sidewall, and the actual number of plies in the tread area, if
different.
(vi) The words
"tubeless" or "tube type" as applicable.
(vii) The word "radial" if the tire is a
radial ply tire.
(2) Each
tire shall be labeled with the symbol "DOT" in the manner specified in 49 CFR
Part 574 , which shall constitute a certification that the tire conforms to
applicable Federal motor vehicle safety standards.
(3) Each tire shall be labeled with the name
of the manufacturer, or brand name and number assigned to manufacturer in the
manner specified in 49 CFR Part 574.
(4) Each tire manufactured between March 1,
1971, and May 22, 1971, shall either:
(i)
Comply with section
4.3(d)(2) and
4.3(i), as effective until May 22, 1971.
(ii) Be labeled with the tire identification
number required by 49 CFR
574.5 and comply with paragraphs (2) and (3)
as effective on and after May 22, 1971.
(d)
Tire and rim matching
information. Matching information requirements shall be as follows:
(1) Each manufacturer of tires shall ensure
that a listing of the rims that may be used with each tire that he produces is
provided to the public. A listing compiled in accordance with subparagraph (i)
need not include dimensional specifications or diagram of a rim if the
dimensional specifications and diagram of the rim are contained in each listing
published in accordance with subparagraph (ii). The listing shall be in one of
the following forms:
(i) Listed by
manufacturer name or brand name in a document furnished to dealers of the
manufacturer's tires, to any person upon request, and in duplicate to: Tire
Division, National Highway Traffic Safety Administration, 400 Seventh Street
S.W., Washington D.C. 20590.
(ii)
Contained in publications current at the date of manufacture of the tire or any
later date of at least one of the following organizations:
(A) The Tire and Rim Association.
(B) The European Tyre and Rim Technical
Organisation.
(C) Japanese
Industrial Standards.
(D) Deutsche
Industrie Norm.
(E) The Society of
Motor Manufacturers and Traders, Ltd.
(F) British Standards Institution.
(G) Scandinavian Tire and Rim
Organisation.
(2) Information contained in any publication
specified in paragraph (1)(ii) of this subsection which lists general
categories of tires and rims by size designation, type of construction or
intended use, shall be considered to be information of the manufacturer under
paragraph (1) for the listed tires and rims, unless the publication itself or
specific information provided according to paragraph (1)(i) indicates
otherwise.
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