Pennsylvania Code
Title 67 - TRANSPORTATION
Part I - Department of Transportation
Subpart A - Vehicle Code Provisions
Article VII - Vehicle Characteristics
Chapter 171 - SCHOOL BUSES AND SCHOOL VEHICLES
Subchapter B - SCHOOL BUS CHASSIS STANDARDS
Section 171.14 - Brakes
Universal Citation: 67 PA Code ยง 171.14
Current through Register Vol. 54, No. 44, November 2, 2024
(a) General rule.
(1) Unless otherwise provided
for by this section, a school bus must be equipped with a chassis brake system
which conforms with the provisions of FMVSS No. 105, No. 106 and No. 121, as
applicable.
(2) The antilock brake
system (ABS), provided in accordance with FMVSS No. 105 or No. 121, shall
provide wheel speed sensors for each front wheel and for each wheel on at least
one rear axle. The system shall provide antilock braking performance for each
wheel equipped with sensors.
(3)
Brake systems shall be designed to permit visual inspection of brake lining
wear without removal of any chassis components.
(4) The brake lines, booster-assist lines and
control cables shall be protected from excessive heat, vibration and corrosion
and installed in a manner which prevents chafing.
(5) The parking brake system for either air
or hydraulic service brake systems may be of a power assisted design. The power
parking brake actuator shall be a push-pull device located on the instrument
panel within seated reach of a 5th percentile female driver. As an option, the
parking brake may be set by placing the automatic transmission shift control
mechanism in the "park" position.
(6) The power-operated parking brake system
may be interlocked to the engine key switch so that once the parking brake has
been set and the ignition switch turned to the "off" position, the parking
brake cannot be released until the key switch is turned back to the "on"
position.
(b) Hydraulic brakes. A bus using a hydraulic-assist brake shall be equipped with audible and visible warning signals that provide a continuous warning to the driver of a loss of fluid flow from the primary source and of a failure of the back-up pump system.
(c) Air brakes. A bus equipped with air brakes shall conform to the following:
(1) The air pressure supply system shall
include a desiccant-type air dryer installed according to the manufacturers'
recommendations. The air pressure storage tank system may incorporate an
automatic drain valve.
(2) The
dashboard instrument panel of a bus equipped with an air brake system shall
include an air pressure gauge of a type allowing the driver to comply with CDL
pretrip inspection requirements.
(3) An air brake shall have both a visible
and audible warning device whenever the air pressure falls below the level
where warnings are required under FMVSS No. 121.
The provisions of this §171.14 amended under the Vehicle Code, 75 Pa.C.S. §§ 4103, 4551-4553 and 6103.
Disclaimer: These regulations may not be the most recent version. Pennsylvania may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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