20
brake air System (cont.)
The trailer is equipped with spring-applied
emergency/parking brakes. The brake air
chambers have two sections, one of which contains
the emergency/parking brake spring. When no
supply air is present, the emergency/parking brake
springs mechanically apply the brakes.
Trailers are equipped with a spring brake priority
emergency valve. This dedicates air to releasing
the spring brakes before charging the reservoir and
supplying the suspension system. To ensure the
reservoir and suspension are properly charged,
do not operate the trailer until the tractor air
gauges indicate the systems are fully charged and
stabilized.
The trailer brakes should be inspected frequently
for serviceability. Any missing, broken, or
disconnected component is hazardous and could
result in an accident or breakdown. The trailer
should never be placed in service when any of the
listed conditions exist. Trailer brake systems will
perform safely and efficiently as long as they are
properly maintained as part of a comprehensive
maintenance program.
WaRNING:
Do not operate the trailer with any brake defects
or with the brakes out of adjustment.
• Inspect and adjust trailer brakes according to
DOT requirements and a preventive maintenance
program.
• Inspect the gladhand connection seals and repair
as needed.
• Inspect air hoses and connections and repair as
needed.
• Never use antifreeze and/or additives in the air
system.
• Ensure the tractor is equipped with an air dryer.
• Ensure the tractor and trailer gladhands are free
of contamination when coupling.
• Monitor the tractor air gauges for signs of unusual
air consumption.
• Check and clean the gladhand screens.
• Routinely open all reservoir petcocks to drain
moisture from the reservoirs.
!
SySTeMS aND feaTUReS
Содержание Dry and Refrigerated Van Trailers
Страница 4: ......
Страница 6: ...2 Introduction Example VIN Tag...
Страница 20: ...16 Standard Wabash Wiring Schematic Systems and Features...
Страница 38: ...34 Operation...
Страница 42: ...QMS F 0604 Rev 2...