BENDIX BW2979 User Manual

Bendix

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AD-9si™ Air Dryer

Preventative Maintenance and Bendix® PuraGuard® Oil Coalescing Technology. The Tools To Keep Your Air Treatment System in Optimal Working Condition.

Preventative Maintenance – As Easy As 1-2-3

Adhering to a preventative maintenance schedule is crucial to keeping your vehicle’s air system clean and ensuring superior performance of all components that utilize system air – such as brakes, emissions equipment and automated manual transmissions. Depending on vocation, Bendix recommends a 1, 2, or 3 year air dryer cartridge replacement on vehicles equipped with a Bendix compressor.

For severe service applications, such as residential refuse trucks or school

buses, the air dryer cartridge should be replaced every year or 100,000 miles;

For pick-up and delivery operations, or for double- and triple-trailer line

haul trucks, every two years or 200,000 miles is the recommendation; and

Introducing the Bendix® AD-9si™ Air Dryer.

Advanced Technology for Freightliner® Vehicles.

Line-haul operations using a single trailer should swap the filter out

every 3 years or 300,000 miles.

More frequent intervals may be required depending on a vehicle’s age, its compressor condition, use of a non-Bendix compressor, the operating environment, the vehicle’s vocation, and its usage.

In conjunction with these guidelines, your fleet can determine the functionality of your filters by checking for moisture in the air brake system monthly. If moisture is present, the air dryer cartridge may require replacement. Refer to the Bendix Service Data Sheet of the specific air dryer for additional information. (Recommended intervals for trucks

equipped with non-Bendix compressors are 6 months (50,000 miles); 1 year (100,000 miles); and 2 years (200,000 miles), respectively). IMPORTANT! When servicing, note

that standard Bendix PuraGuard oil coalescing air dryers or cartridges, however, PuraGuard oil coalescing air dryers or cartridges MUST only be serviced with like replacements.

AD-9si™ air dryers or air dryer cartridges may be serviced with

The Mark of Assurance.

The performance evolution continues with the Bendix

AD-9si

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To learn more, talk to your Freightliner dealer representative, call 1-800-AIR-BRAKE (1-800-247-2725) or visit www.Bendix.com today.

Bendix Commercial Vehicle Systems LLC • 901 Cleveland Street • Elyria, Ohio 44035 • www.bendix.com • 1-800-247-2725 BW2979 ©2014 Bendix Commercial Vehicle Systems LLC, a member of Knorr-Bremse Group • 03/14 • All Rights Reserved

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Bendix® AD-9si Air Dryer

Cleaner Air = Lower Costs

Air is essential…not just to operate brakes, but for many new components such as automated manual transmissions and diesel particulate ﬁlters. So why trust your vehicle to anyone other than the experts? Bendix is the number one choice of air dryers on Freightliner vehicle air drying technology ﬁeld, we’ve produced over 10 million air dryers for heavy-duty vehicles. And now we’re proud to bring you our newest air dryer, the Bendix® AD-9si™.

Bendix® AD-9si™: Superior Air Dryer Technology and a No Up-Charge Option

The new Bendix® AD-9si™ air dryer is a no up-charge option with up to 25% more air drying capacity versus the existing Bendix means more clean air when your vehicle needs it.

When equipped with a PuraGuard superior air system oil removal – up to 200 times more than competitive oil coalescing cartridges – and delivers proven performance and easy maintenance. In addition, the AD-9si weighs 3 lbs. less than the competitive air dryer it replaces.

A Full Line of Bendix® Air Dryers to Meet Your Fleet’s Unique Needs

Freightliner also offers two well-known Bendix air dryers:

Bendix

outer shell protecting the desiccant cartridge. And for easier service, depending on your vehicle conﬁguration, you may use a bracket to attach an external D-2 governor to the AD-9 air dryer.

Bendix

can select the Bendix a Bendix AD-IS compartment air reservoir mounted in a back-of-cab position. It eliminates the need for a separate wet tank while generating at least 10 pounds in weight savings.

Both can be ordered with a Bendix PuraGuard oil coalescing cartridge. See the Bendix AD-9si FAQ’s sheet (BW2955) for additional details, including order codes

heavy- and medium-duty air braked trucks. A trail-blazer in the commercial

AD-IP® model. More air drying capacity

oil coalescing filter the Bendix® AD-9si™ provides

AD-9® – Leading the industry for over 20 years, the AD-9 has a robust

DRM™ – For a nominal upgrade charge, your ﬂeet

DRM (Dryer Reservoir Module),

air dryer mounted directly to a multi-

Bendix

Bendix PuraGuard

PuraGuard® – The Best Protection for Your Investment

technology offers better oil coalescence over competitive oil coalescing cartridges

with up to 200 times more oil removal. Less oil in the air system means less risk of failure for expensive vehicle systems, such as emissions control systems and automated manual transmissions that rely on air. Bendix

performance of your vehicle systems.

When you combine the ﬁeld-proven performance of any Bendix® air dryers with

PuraGuard® oil coalescing technology, you’ll ensure the reliability, durability and the proper

Bendix® PuraGuard® Oil Coalescing Technology

First Phase:

Skin Cooling – Lowers the temperature, converting aerosols to liquid

Second Phase:

PuraGuard® Treatment – Coalesces and collects oil particles, protecting the desiccant from contamination

Third Phase:

Recyclable desiccant removes moisture by adsorption

clean dry air

Competitive Oil Coalescing Technology

Competitive oil coalescing technology places the oil separator AFTER the desiccant. Getting the oil out ﬁrst (as PuraGuard more oil is removed before it can contaminate the desiccant, delivering superior performance and a longer cartridge life.

does) means

An advancement in air drying technology, the better performing and easier to ser AD-9si better meets the needs of Freightliner vehicles.

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Experience Bendix Peace Of Mind

Fleet owners trust the Bendix AD-9si to provide the latest in advanced air drying technologies. Fleets and owner/operators can trust in our commitment to provide multiple options and a supply of parts and remanufactured air dryers to meet the unique requirements of their Freightliner.

Industry Leading Warranty

With protection for three years or 350,000 miles, the Bendix AD-9si air dryer is – if installed as original equipment on the vehicle – eligible for our Total Air Guarantee (T.A.G.) program. T.A.G. extends the warranty of other Bendix air and antilock brake system components also installed as original equipment for three years or 350,000 miles.

Keep in mind:

For better air dryer performance, non-oil coalescing cartridges can be upgraded to the Bendix oil coalescing cartridge. However, if the Bendix PuraGuard

oil coalescing cartridge is an OE Standard,

it must be replaced with a like unit.

Discover the Newest

air treatment technology delivered by the leader in Air Drying and Oil Coalescing Technology.

PuraGuard®

Bendix®

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BENDIX BW2979 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual