Bendix Commercial Vehicle Systems ABS OPERATORS MANUAL

ABS Operator’s Manual

Bendix® Antilock Brake Systems

With optional advanced

antilock braking features:

• Automatic Traction Control (ATC)
and

• RSP

Read, understand and follow the information inRead, understand and follow the information in

Read, understand and follow the information in

Read, understand and follow the information inRead, understand and follow the information in
this manual, particularly the Important Safetythis manual, particularly the Important Safety

this manual, particularly the Important Safety

this manual, particularly the Important Safetythis manual, particularly the Important Safety
Information about ABS (page 4) and RSP (page 7).Information about ABS (page 4) and RSP (page 7).

Information about ABS (page 4) and RSP (page 7).

Information about ABS (page 4) and RSP (page 7).Information about ABS (page 4) and RSP (page 7).

®

Roll Stability System

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INDEX

Antilock Brake System (ABS) . . . . . . . . . . . . . . . 4

Important Safety Information About ABS . . . . . 5

Automatic Traction Control (ATC) . . . . . . . . . . 6

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RSP

Roll Stability System . . . . . . . . . . . . . . . . . . 7

Important Safety Information About RSP . . . . . 8

ABS Indicator Lamps . . . . . . . . . . . . . . . . . . . . . 10

Sources For More Information . . . . . . . . . . . . 12

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UNDERSTANDING

BENDIX® ANTILOCK BRAKING SYSTEMS (ABS) FOR

AIR BRAKED VEHICLES

What Is ABS?

ABS is an electronic control system that improves vehicle stability and steerability
by preventing wheel lock during braking.

How Does ABS Work?

The ABS system monitors wheel rotation, and if it detects any wheel locking up,
the system automatically reduces the brake pressure at that wheel. If necessary,
the ABS system automatically modulates braking forces at one or more of the
wheel ends. The system maintains lateral stability by preventing wheel lock
during braking.

What is the optional ABS Off-Road Mode?

This is an optional ABS feature operated by a dash-mounted switch for use
when operating your vehicle “off-road” on soft surfaces. Below 25 mph, this
feature improves ABS performance under off-road operating conditions. If
your vehicle is equipped with this feature, toggle the switch to the “ABS off­road” position when operating on soft surfaces. Always remember to turn the
ABS off-road feature off when driving on a firm road surface. A new ignition
cycle, or a second depression of the Off-road switch, will turn this function off
and restore normal ABS functionality and (if installed) full RSP functionality.
For more details on optional ATC and RSP features, see pages 6 and 7 of this
manual.

WARNING! The ABS Off-Road mode should not be used on normal,
paved road surfaces because vehicle stability and steerability may
be reduced. The ABS indicator lamp will flash slowly to indicate to the driver

that the ABS off-road mode is engaged.
CAUTION: When the ABS Off-Road mode is engaged, stability functions are

disabled at speeds below 25 mph. The ATC/RSP Indicator lamp will illuminate
to indicate that the RSP stability system function is disabled.

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