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GENERAL SAFETY GUIDELINES

WARNING! PLEASE READ AND FOLLOW THESE INSTRUCTIONS

TO AVOID PERSONAL INJURY OR DEATH:

When working on or around a vehicle, the following guidelines should be observed AT ALL TIMES:

 

 Park the vehicle on a level surface, apply the 

parking brakes and always block the wheels.  

Always wear personal protection equipment.  

 

Stop the engine and remove the 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.

 

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.

 

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 a 

Bendix

®

 AD-IS

®

 air dryer system, a Bendix

®

 DRM

 

dryer reservoir module, or a Bendix

® 

AD-9si

®

 air 

dryer, be sure to drain the purge reservoir.

 

 Following the vehicle manufacturer ’s 

recommended procedures, deactivate the 

electrical system in a manner that safely removes 

all electrical power from the vehicle.

 

Never exceed manufacturer’s recommended 

pressures.  

 

Never connect or disconnect a hose or line 

containing pressure; it may whip and/or cause 

hazardous airborne dust and dirt particles. Wear 

eye protection. Slowly open connections with 

care, and verify that no pressure is present. Never 

remove a component or plug unless you are 

certain all system pressure has been depleted.

 

 Use only genuine Bendix

®

 brand replacement 

parts, components and kits. Replacement 

hardware, tubing, hose, fi ttings, wiring, etc. must 

be of equivalent size, type and strength as original 

equipment and be designed specifi cally for such 

applications and systems.

 

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.

 

Prior to returning the vehicle to service, make 

certain all components and systems are restored 

to their proper operating condition.

 

 For vehicles with Automatic 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.

 

The power MUST be temporarily disconnected 

from the radar sensor whenever any tests USING 

A DYNAMOMETER are conducted on a vehicle 

equipped with a Bendix

® 

Wingman

®

 system.

 

 You should consult the vehicle manufacturer's operating and service manuals, and any related literature, 

in conjunction with the Guidelines above.

Summary of Contents for SD-08-2418

Page 1: ...or Exhaust 23 AUX 2 Auxiliary Delivery Port Pressure Protection Valves 4 Purge Valve RES Governor Reservoir 2 Figure 1 Bendix AD IS AD IS PuraGuard Oil Coalescing Air Dryer Reservoir Systems Desiccant...

Page 2: ...the electrical system in a manner that safely removes all electrical power from the vehicle Never exceed manufacturer s recommended pressures Never connect or disconnect a hose or line containing pres...

Page 3: ...essure protection valves is to protect each reservoir from a pressure loss in the other reservoir or a pressure loss in an air accessory Each of the pressure protection valves in theAD ISair dryer res...

Page 4: ...as adsorption Dry air exits the desiccant cartridge through the center of the base assembly then flows to the delivery check valve through an orifice and into the purge reservoir The delivery check va...

Page 5: ...ck Valve open Primary Port PRI Purge Valve Open Turbo Cut Off Valve Closed Engine Turbo Unloader Port Supply Port Primary Reservoir Pressure Protection Valves Exhaust Safety Valve Purge Reservoir Drai...

Page 6: ...ve housing With the turbo cut off valve seated in the closed position air in the compressor discharge line as well as the AD IS air dryer inlet port cannot enter the air dryer By completing these acti...

Page 7: ...oo close to the air compressor For assistance contact the Bendix TechTeam at 1 800 AIR BRAKE 1 800 247 2725 option 2 or bendix com D In areas where more than a 30 degree range of temperature occurs in...

Page 8: ...cold weather operation as follows A Electric Power to the Dryer Refer to Figure 4 With the ignition or engine kill switch in the RUN position check for voltage to the heater and thermostat assembly us...

Page 9: ...vailable for the servicing of the pressure protection valves Do not attempt to adjust or service the pressure protection valves incorrect pressure protection valve settings can result in the automatic...

Page 10: ...s not build use the following procedure to remove clean and reinstall the delivery check valve DELIVERY CHECK VALVE CLEANING PROCEDURE Note This is only required if system pressure does not build afte...

Page 11: ...for corrosion and replace as necessary ASSEMBLY 1 Lubricate the smaller o ring and check valve body with a heavy duty lithium grease 2 Install this o ring on the check valve body by sliding the o ring...

Page 12: ...12 NOTES...

Page 13: ...governor cut out and allow a full minute for the normal dryer purge cycle to empty the purge reservoir Switch off the engine and apply and release the brakes so that the system pressure reaches gover...

Page 14: ...Air dryer not purging F Refer to Symptom 6 G Purge air exhaust time is insufficient due to excessive system leakage G Refer to Symptom 1 3 Safety valve on the air dryer is popping off or exhausting a...

Page 15: ...air dryer purge valve exhaust may look like whitish liquid or paste or small beads A Faulty dryer cartridge A Replace the Bendix AD IS air dryer cartridge or AD IS air dryer B Excessive dryer vibrati...

Page 16: ...007 2018 Bendix Commercial Vehicle Systems LLC a member of the Knorr Bremse Group 04 18 All Rights Reserved Log on and Learn from the Best On line training that s available when you are 24 7 365 Visit...

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