BENDIX BW2132 User Manual

valves from Bendix

®

AHEAD OF THE CURVE

AUTOBRAKE

™

Automatic Operation For
Added Protection and Safety

SUPPLEMENTAL BRAKE
APPLICATION SYSTEM

Keep Your Bus Stopped

A school bus driver has a tough job — keeping children from
harm. Keeping the bus stopped when passengers enter and
exit is crucial, but holding a seven-ton bus still can be a chal­lenge. There’s no longer a reason to take chances with school
bus safety because now there’s Bendix AutoBrake™. With
AutoBrake, the need to use the parking brake to keep the bus
from rolling is eliminated.

Increased Safety – Automatically

In normal stopping situations, the driver
activates the yellow caution lights when
approaching a stop (where required), applies the
service brake to bring the bus to a complete stop,
pulls the parking brake to park the bus, and finally,
opens the door to activate the flashing red lights
and extend the stop sign. This final step activates
the AutoBrake system, eliminating the need for the
driver to activate the parking brake.

The Bendix AutoBrake uses a pneumatic solenoid,
powered by the vehicle’s stop arm solenoid circuit. When
used properly in compliance with state regulations, Auto­Brake’s nominal 44 psi rear axle service brake application
prevents the bus from rolling, without having to use the
parking brake. When the driver closes the door to continue
on the route, AutoBrake is automatically released.

AutoBrake is a supplemental brake system, and is not
intended as a parking brake. That means the driver still needs
to keep their foot on the brake pedal. If the driver removes his
or her foot during the AutoBrake application, a warning
buzzer and amber dash lamp will activate. The buzzer and
lamp will deactivate when brake pressure is reapplied or the
parking brake is engaged.

®

Reduce System and Driver Wear

Relying on the parking brake to keep the bus
stationary requires additional use of the air com­pressor, air dryer, push/pull valve and spring brakes.
All this additional usage adds up to additional wear
and tear on the vehicle’s air system. AutoBrake
helps to eliminate that constant use of the parking
brake and protects the vehicle’s air system.

Constantly applying and releasing the parking
brake also wears on drivers. AutoBrake helps
reduce driver fatigue by minimizing the number of
times he/she applies the parking brake, giving the
driver more time to focus on the other actions
required to safely transport children.

Module Design For Ease

AutoBrake is a complete module that requires mini­mal maintenance. It can be easily installed and fits
all bus makes and models that utilize a desiccant
style air dryer and a Weldon Electronic Eight Lamp
School Bus Flasher.

Meets All Federal Standards

Vehicle tests indicate that AutoBrake does not
impact vehicle compliance to federal regulations
(FMVSS121).

valves from Bendix

®

AHEAD OF THE CURVE

AUTOBRAKE

™

Bendix AutoBrake Keeps You Ahead Of The Safety Curve

When you want to protect your valuable air system from wear and reduce driver fatigue, you want AutoBrake.

For all the details, talk to your Bendix Account Manager, call 1-800-AIR-BRAKE, or visit www.bendix.com today.

Bendix Commercial Vehicle Systems LLC • 901 Cleveland Street • Elyria, Ohio 44035 • 1-800-AIR-BRAKE (1-800-247-2725)
BW2132 • ©2002 Bendix Commercial Vehicle Systems LLC, a member of the Knorr-Bremse group • 02/02 • All Rights Reserved • Printed in U.S.A.

REFER TO THESE PART NUMBERS WHEN SERVICING YOUR VEHICLE

Eliminates need to apply and
release parking brakes at each
drop off and pickup

Automatic (Sequential lighting)
Extra Step
(Non-sequential lighting)

Warning buzzer &
amber dash lamp

Regulating valve factory set
at 44 psi (nominal)

Aftermarket retrofitable

Available service parts

Reduces vehicle wear and tear
Reduces driver fatigue
Reduces vehicle air consumption

Minimal driver
intervention necessary

Reminds drivers to keep their
foot on the brake pedal or
engage the parking brake

Minimal maintenance
(tamper proof)

Existing fleets can be equipped
with AutoBrake

A cost effective alternative to
replacing the entire module

FEATURES BENEFITS

Designed To Deliver These Benefits

5008285

5011053

Sequential Lighting AutoBrake
Module and Installation Kit

Non-sequential Lighting
AutoBrake Module and
Installation Kit

AUTOBRAKE PART NUMBERS

Part Number Description

AutoBrake Module and Installation Kit

For use where Amber Lamps must be turned on to cause the Red Lamps and
Stop Arm to activate with the opening of the door. Sequential lighting requires
the driver to perform two separate actions in order to activate AutoBrake.

For use where Amber Lamps need not be turned on to cause the Red Lamps and
Stop Arm to activate with the opening of the door. Kit 5011053 adds a supplemental
switch and harness, which requires the driverto perform a second manual action in
order to activate the AutoBrake system.