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Operation
Brake Application
Rapid successive brake applications and release, sometimes
referred to as fanning or pumping the pedal, should be avoided.
This is an inefficient way of slowing or stopping a vehicle
and inefficient use of air pressure. It also defeats the proper
operation of the ABS.
Parking Brake
WARNING
Under no circumstances should the spring brake
section of the spring and service brake chamber
be disassembled.
Disassembly will release a
powerful spring, which could result in property
damage, personal injury, or death.
All vehicles with air brakes are equipped with spring brake
chambers for parking. The parking system is operated manually
by a single valve, which in the case of a tractor also controls the
parking system on the trailer.
The purpose of this brake is to hold the vehicle in a parked
position. The parking brake should not be used to brake the
vehicle during normal driving.
To apply the parking brake, pull out control knob. To release the
parking brake, push in the control knob.
It should be noted that upon loss of air pressure in both primary
and secondary systems, partial spring brake application will
occur prior to full automatic application of the parking brake
control valve at 20 to 45 psi (138 to 310 kPa).
To release the parking brake after a low-pressure occurrence,
recharge system to at least 70 psi (483 kPa) and push in the
parking brake control. If the system cannot be recharged and
the vehicle must be moved, the spring brake must be manually
released (caged).
WARNING
Failure to comply with the following may result in
property damage, personal injury, or death:
•
Always chock the wheels when manually releasing the
parking brakes, or the vehicle can roll.
•
For towing, make sure the vehicle is securely connected
to tow vehicle and tow vehicle parking brakes are
applied before releasing the disabled vehicle’s parking
brakes.
•
To ensure release of parking brake, always cage the
spring in the brake chamber.
•
Under no circumstances should the spring brake
chamber be disassembled for the purpose of releasing
the parking brake.
In the event it is necessary to move the vehicle after an
emergency application (before air pressure can be restored),
the parking spring can be compressed mechanically to release
the brake. A release stud spring caging tool is furnished with
the brake chamber assembly. The release stud engages in the
spring pressure plate and its nut is tightened to compress, cage
the spring and release the brake.
Remove release stud assembly from carrying pocket.
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Содержание ProStar+ Eagle Series.
Страница 4: ...Operator s Manual ProStar Series Printed in the United States of America 3878859R2 ...
Страница 12: ...Table of Contents Section 10 Index Index 235 viii 3878859R2 ...
Страница 26: ...Model Description Exterior Components 14 3878859R2 ...
Страница 28: ...Model Description 16 3878859R2 ...
Страница 59: ...Controls Features 3878859R2 47 ...
Страница 70: ...Controls Features Declination Zone Map 58 3878859R2 ...
Страница 93: ...Controls Features Center Dash Panel Wing Panel 3878859R2 81 ...
Страница 128: ...Sleeper Features 116 3878859R2 ...
Страница 182: ...Operation 170 3878859R2 ...
Страница 241: ...Maintenance Intervals and Specifications Typical Interior Fuse Panel Layout 3878859R2 229 ...
Страница 242: ...Maintenance Intervals and Specifications Typical Luggage Compartment Fuse Panel Layout 230 3878859R2 ...
Страница 262: ...Index 250 3878859R2 ...