Bendix Bw2626 Users Manual

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compressors

BENDIX® BA-922® AIR COMPRESSOR

High air output compressor for demanding

transit vehicle applications.

Experience Counts

For generations the Bendix® name has meant quality, reliability

and durability when it comes to your vehicle’s air charging

system. With transit vehicles becoming more sophisticated, and

compressed air requirements increasing, Bendix offers this next

generation high-performing, energy-saving compressor option.

High Air Delivery

The Bendix® BA-922® air compressor is unique because it

provides high air delivery even at low speeds, a critical feature

for urban transit routes. This compressor’s ability to recharge the

system quickly and effi ciently at those low speeds makes it ideal

for more demanding brake system applications, such as transit

coaches that are often starting, stopping, lifting, etc. It is a high-

output, two-cylinder compressor that supplies 32 cfm (cubic feet

per minute) displacement at 1,250 rpm (revolutions per minute).

That’s important, since high output results in lower duty cycle,

and lower duty cycle results in longer compressor life.

High Thru-Drive

Unlike other high-air-output compressors, the Bendix®

BA-922® air compressor’s standard design is capable of

powering a 25 horsepower accessory at any speed. If your

application requires higher thru-drive power – an option that

may be possible – it will be necessary for you to consult with

one of the experienced Bendix air compressor engineers.

Efficient Unloader Valving

By incorporating integral unloader valving in the cylinder head,

the powerful Bendix® BA-922® air compressor eliminates special

valve requirements. This unique design not only reduces the

number of ports, it also reduces unloaded horsepower draw.

Effective Cooling Systems

The cylinder head of this hard working unit provides lower

discharge air temperatures by incorporating highly effective

cooling surfaces, thereby reducing carbon formation and resulting

in higher air quality. Minimizing discharge temperature increases

the service life of downstream air brake components, such as the

air dryer and valves.

Compact, Lightweight Design

Highly effi cient, the Bendix® BA-922® two-cylinder air compressor

replaces earlier four-cylinder designs. While its volume output is

similar to the Bendix® Tu-Flo 1400® air compressor, this smaller

and lighter compressor is 4½ inches shorter and weighs 33

percent less due to its simpler design and extensive use of

aluminum components. And its compact size enables it to meet

OE installation constraints in tight engine compartments without

compromising its high-air-output capability.

compressors

BENDIX® BA-922® AIR COMPRESSOR

Requirements

As the source of energy for a vehicle’s air brake system and

accessories, the Bendix® BA-922® air compressor is driven by the

vehicle’s engine and utilizes the vehicle’s lubrication and cool-

ing system. Because of these shared systems, regular vehicle

maintenance, such as oil changes and coolant fl ushing, is critical.

This vehicle maintenance – along with regular air brake system

and air accessory maintenance – keeps the compressor running

effi ciently.

Experience Counts

Since 1924, the year our fi rst compressor was installed on a com-

mercial vehicle, Bendix has been leading the way in air charging

system experience and expertise.

The secret to our success is simple… we offer you concentrated

know-how unparalleled in the industry. As a member of the Knorr-

Bremse group, we’re part of the worldwide leader in air brake

technology and practical application.

We’re proud of our reputation as experts in air brake systems and

leading-edge safety technologies in North America. No one un-

derstands the intricacies of the system like we do. By focusing

on the entire system – not just one part – Bendix offers effi cient,

integrated, trouble-free operation along with a system that offers

you:

• Reduced Maintenance • Improved Performance

• Simple, Integrated Design • Fewer Leak Points

Bendix® Quality and Service Guaranteed

Bendix stands behind every compressor with complete warranty

protection and a veteran technical support team to help you

troubleshoot and resolve any air brake system challenges. From

sales to service, engineering to production, the Bendix team has

years of practical experience hard at work for you.

Bendix Compressors

• Reliable

• Long-Lasting

• High-Performing

• Energy-Saving

• Genuine Bendix Quality

Bendix compressors provide the power that keeps you

on the road, and the value that keeps you coming back.

The Bendix® BA-922® air compressor is one of the complete line of Bendix air brake components that can help improve vehicle

performance, increase effi ciency, and reduce your overall operating costs.

To fi nd out more, talk to your Bendix 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, OH 44035 • 1-800-AIR-BRAKE (1-800-247-2725)

BW2626 ©2007 Bendix Commercial Vehicle Systems LLC, a member of the Knorr-Bremse Group • 02/07 • All Rights Reserved • Printed in U.S.A.

The Bendix® BA-922® Air Compressor

Features Benefi ts

High air output Provides ample air for demanding transit

applications such as kneeling, air brake

aux, etc.

Effective cooling system Effective cylinder head cooling results

in very low discharge air temperature

Simple, two cylinder Improves durability and reliability

confi guration while reducing maintenance costs

Smaller size Compact size to meet tight OE

installation constraints

Lighter weight Improves vehicle fuel economy and

performance

Bendix® BA-922® Compressor Specifi cations1

Typical Weight2 64 lbs (29 kg.)

Number of cylinders 2

Swept air displacement @ 1,250 rpm 31.6 cfm

Maximum recommended rpm 3,000

Loaded HP required @ 1,250 rpm 6 hp

Unloaded HP required @ 1,250 rpm 2 hp

Thru-drive capacity2 25 hp

Size (H x W x L) in inches3 13.2 x 8.0 x 12.6

Compressor inlet maximum turbocharge boost (psig) 0 psig (Naturally Aspirated)

1 Reference BW-121-A for the complete list of Bendix® BA-922® Compressor

application requirements to ensure optimum operation.

2 Indicates an application specifi c feature.

3 Measurements are taken the following way: Height, crankshaft centerline to top

of cylinder head; Width, either widest section fo cylinder head or crankcase belly;

Length, between fl ange faces.

Note: All references to RPM are for the compressor operation.

Engine

Series 50 Series 50

Diesel Series Diesel Series

Series 50 CNG 60 non-EGR 60 non-EGR

ECM Position Not Applicable Rear Side

Bendix® BA-922® 5013695X 5013695X 5013695X

Air Compressor

Complete Retrofi t Kit** 5015871 5016263 5016728

Kit includes the following:

Compressor Fitting Kit 5016660 5016660 5016660

Plumbing Kit 5016661 5016661 5016661

CNG Only Kit 5016662 not required not required

Diesel Only Kit not required 5016664 5016664

Rear Support Bracket Kit 5016663 5016663 5016663

ECM Relocation Kit not required not required 5016250

** Complete retrofi t kit contains all the detailed kits noted. It is not necessary to

order individual kits unless applicable to your situation.