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BW1430  © 2007 Bendix Commercial Vehicle Systems LLC.  All rights reserved.  6/2007 Printed in U.S.A.

A spanner wrench can be used to rotate the adjusting ring, 
but if such a wrench is not available, the adjusting ring 
can be turned with a small screwdriver inserted in one of 
the inner notches of the ring. Turning the adjusting ring 
one notch will raise the delivered pressure approximately 
5 psi.

WARNING! PLEASE READ AND FOLLOW 
THESE INSTRUCTIONS TO AVOID PERSONAL 
INJURY OR DEATH:

When working on or around a vehicle, the following 
general precautions should be observed at all times.

1.  Park the vehicle on a level surface, apply the 

parking brakes, and always block the wheels.  
Always wear safety glasses.  

2.  Stop the engine and remove ignition key when 

working under or around the vehicle.  When 
working in the engine compartment, the engine 
should be shut off and the ignition key should be 
removed. Where circumstances require that the 
engine be in operation, EXTREME CAUTION should 
be used to prevent personal injury resulting from 
contact with moving, rotating, leaking, heated or 
electrically charged components.

3.  Do not attempt to install, remove, disassemble 

or assemble a component until you have read 
and thoroughly understand the recommended 
procedures.  Use only the proper tools and observe 
all precautions pertaining to use of those tools.

4.  If the work is being performed on the vehicle’s 

air brake system, or any auxiliary pressurized air 
systems, make certain to drain the air pressure 

from all reservoirs before beginning ANY work 
on the vehicle.  If the vehicle is equipped with an 
AD-IS

®

 air dryer system or a dryer reservoir module, 

be sure to drain the purge reservoir.

5.  Following the vehicle manufacturer’s recommended 

procedures, deactivate the electrical system in a 
manner that safely removes all electrical power 
from the vehicle.

6.  Never exceed manufacturer’s recommended 

pressures.  

7.  Never connect or disconnect a hose or line 

containing pressure; it may whip. Never remove 
a component or plug unless you are certain all 
system pressure has been depleted.

8.  Use only genuine Bendix

®

 replacement parts, 

components and kits. Replacement hardware, 
tubing, hose, fi ttings, etc. must be of equivalent 
size, type and strength as original equipment and 
be designed specifi cally for such applications and 
systems.

9.  Components with stripped threads or damaged 

parts should be replaced rather than repaired.  Do 
not attempt repairs requiring machining or welding 
unless specifi cally stated and approved by the 
vehicle and component manufacturer.

10.  Prior to returning the vehicle to service, make 

certain all components and systems are restored 
to their proper operating condition.

11.  For vehicles with Antilock Traction Control (ATC), 

the ATC function must be disabled (ATC indicator 
lamp should be ON) prior to performing any vehicle 
maintenance where one or more wheels on a drive 
axle are lifted off the ground and moving.

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