Operation
Apply a light coat of antiseize to the threads of the release stud to
avoid any unnecessary wear of the threads. Remove the access
plug from the end of the spring chamber. Insert the release stud
through the opening in the chamber and into the spring pressure
plate.
Turn the release stud one-quarter turn to engage the tangs on
the release stud into the slot in the pressure plate. Install the nut
on the release stud. Be sure tang on release stud stays engaged
with slot on pressure plate while installing the nut. Tighten the
nut with a wrench to compress the spring.
Parking Brake Reset
Charge spring brake chambers with air pressure. Loosen nut
and remove the release stud and nut from the spring housing and
re-install the access plug in the chamber opening. Re-install the
release stud and nut in the carrying pocket on the brake chamber
housing.
Parking Brake Alarm
If the parking brake alarm sounds (horn continuously blows
when driver’s door is opened), press the service brake pedal.
Then, after turning the ignition switch to the ON or ACC position,
make sure that the parking brake is set. For a more detailed
description of the alarm, see the Parking Brake Alarm in the
Electrical section above.
Air Dryer
The function of the air dryer is to collect and remove moisture
and contaminants before the compressed air reaches the air
reservoirs.
This protects the air system components from
malfunctioning including blockage, corrosion, and freezing.
For air tank draining requirements, refer to the Maintenance
Instructions section as well as local regulations.
The air dryer is installed in the discharge line between the air
compressor and the air system reservoirs. The air dryer includes
a replaceable desiccant cartridge and oil blocking filter that is
periodically serviced. It also may include a heater to prevent the
discharge valve from freezing in cold weather.
Trailer Brake Hand Control
WARNING
The hand control valve should never be used
to apply the trailer brakes when the tractor and
trailer are parked. Air pressure may leak from the
system, and the vehicle could roll away, resulting
in property damage, personal injury, or death.
The trailer brake hand control is used to apply the trailer service
brakes, independently of the tractor service brakes. The trailer
brake hand control operates a valve that provides gradual control
of air pressure applied to the trailer service brakes. The trailer
service brakes can be fully or partially applied, but when in a
partial position, can be overridden by pressing fully on the brake
pedal.
To apply the trailer service brakes utilizing the hand control,
move the lever clockwise (down).
The further the handle is
moved clockwise, the greater the air pressure applied to the
trailer brakes.
The trailer hand brake handle will remain in
place with the desired brake pressure applied until the handle
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Summary of Contents for ProStar+ Eagle Series.
Page 4: ...Operator s Manual ProStar Series Printed in the United States of America 3878859R2 ...
Page 12: ...Table of Contents Section 10 Index Index 235 viii 3878859R2 ...
Page 26: ...Model Description Exterior Components 14 3878859R2 ...
Page 28: ...Model Description 16 3878859R2 ...
Page 59: ...Controls Features 3878859R2 47 ...
Page 70: ...Controls Features Declination Zone Map 58 3878859R2 ...
Page 93: ...Controls Features Center Dash Panel Wing Panel 3878859R2 81 ...
Page 128: ...Sleeper Features 116 3878859R2 ...
Page 182: ...Operation 170 3878859R2 ...
Page 241: ...Maintenance Intervals and Specifications Typical Interior Fuse Panel Layout 3878859R2 229 ...
Page 262: ...Index 250 3878859R2 ...