Operation
NOTE: When attempting to readjust/slide the position of the
tractor fifth wheel or the trailer’s tandem axles with the tractor
and trailer fully connected, leave the tractor’s PARKING BRAKE
pushed in and pull the TRAILER AIR SUPPLY out. This will
apply the trailer’s parking brakes and keep it stationary while
the tractor is moved forward or reverse.
Parking Brake Indicator
WARNING
Driving with the parking brakes applied can lead
to excessive heat build up and fire resulting in
property damage, personal injury, or death.
The Parking Brake indicator is operated in conjunction with the
parking brake. With the ignition switch on and the Parking brake
set, the PARK indicator will illuminate.
If the indicator does
not illuminate with the Parking brake set, the indicator may be
inoperative.
Bobtail Proportioning System
Bobtail proportioning is available with tractor air brake systems
(for export only with code 04092) with or without ABS or
ABS/Traction Control Systems. The proportioning valve senses
when trailer brakes are not connected to the vehicle air brake
system, and automatically adjusts rear braking power when
operating in the bobtail mode, then returns full braking power
when a trailer is attached.
When operating in the bobtail
mode, bobtail proportioning provides more braking control and
shorter stopping distances, particularly on wet and slippery road
surfaces.
It should be noted that there is a noticeably different brake pedal
feel on tractors with this feature while operating in the bobtail
mode. Higher brake pedal efforts will be experienced by the
driver than when in a brake system without bobtail proportioning.
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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 ...