Operation
Antilock Driving Tips
Brake just the way you always have.
Apply brakes as
normal to stop in time. The ABS monitors the brake application
electronically and automatically controls the brakes, much faster
than a driver could do by pumping the brake pedal.
Always remember that you are the most important factor
to safe operation of your vehicle.
Steer clear of traffic,
pedestrians, animals or other obstacles while you are in an
emergency braking situation.
The Antilock tractor and truck
brake system will allow you to steer the vehicle during braking
while it comes to a full stop. ABS is not an excuse to take
unnecessary risks.
Always drive carefully and stay a safe
distance away from the vehicle in front of you.
When driving with a single trailer, doubles, or triples:
Brake
as necessary, watch your trailer(s) through your mirrors, correct
steering as necessary to keep in straight lines.
If only your tractor has ABS:
Use your tractor’s ABS brakes.
Steer clear of obstacles and watch the trailer through your
mirrors to make sure it follows your tractor properly. Tractor
ABS will help prevent tractor jackknife but will not prevent trailer
swing out.
Automatic Traction Control (ATC) System
General Information
The Automatic Traction Control (ATC) feature is an available
option on some models.
Automatic Traction Control is an
integrated addition to the ABS. This system utilizes input from
the individual wheel sensors to determine if drive axle wheel
slip is occurring during vehicle acceleration. If drive axle wheel
slippage is occurring, the Controller Relay initiates action to
reduce engine power and / or to selectively apply rear brakes
to transfer power from the slipping wheel to the opposite
wheel. This enables the vehicle to gain momentum and move
torque to road surfaces providing more traction. The system
instantly blinks an indicator to advise the driver that wheel spin
is occurring.
If wheel spin occurs at speeds above 25 mph (40 km/h), the
indicator blinks and, using its link to the engine control module,
the ATC reduces engine torque to a level suitable for the
available traction. The brakes are not applied, even slightly, at
any speed above 25 mph (40 km/h).
Both the ABS and ATC are features added to the basic air brake
system, and the loss of either or both should in no way affect the
basic brake system. ABS and ATC require no changes in driving
style and it is best not to change your usual, careful driving
habits. Other than during initial start-up, when the TRAC CTRL
indicator flashes and then goes out, the ATC system should not
be noticed until it’s needed. Routine operation of the brakes and
accelerator is unchanged.
ATC System Check
At ignition turn-on, the TRAC CTRL indicator will illuminate
steadily for 2.5 seconds and then turn off. If not, the system is
defective or inoperative.
190
Summary of Contents for ProStar+
Page 4: ......
Page 24: ...Foreword 12...
Page 38: ...Model Description 26...
Page 74: ...Controls Features Declination Zone Map 62...
Page 98: ...Controls Features Center Dash Panel Wing Panel 86...
Page 118: ...Controls Features 106...
Page 243: ...Maintenance Instructions 231...
Page 286: ...Maintenance Intervals and Specifications 274...
