Bendix Bw2626 Users Manual

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compressors
BENDIX® BA-922® AIR COMPRESSOR
High air output compressor for demanding
transit vehicle applications.

E x p erie n ce Count s
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.

H i g h A ir D e liver y
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 efficiently 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 highoutput, 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.

H i g h Th ru -D ri v e
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.

E ff i cie n t Un lo ader Valv ing
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.

E ff ective Cooling Sy st em s
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.

Co m pact, Light w eight Design
Highly efficient, 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
R eq u ire m e n ts

The Bendix ® BA-922 ® Air Compressor

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 cooling system. Because of these shared systems, regular vehicle
maintenance, such as oil changes and coolant flushing, is critical.
This vehicle maintenance – along with regular air brake system
and air accessory maintenance – keeps the compressor running
efficiently.

E x p erie n ce Count s
Since 1924, the year our first compressor was installed on a commercial 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 KnorrBremse group, we’re part of the worldwide leader in air brake
technology and practical application.

• Improved Performance
• 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.

B endix Com pressor s
• Reliable
• Long-Lasting
• High-Performing
• Energy-Saving
• Genuine Bendix Quality

Benefits

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
configuration

Improves durability and reliability
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 Specifications1
Typical Weight2
Number of cylinders
Swept air displacement @ 1,250 rpm
Maximum recommended rpm
Loaded HP required @ 1,250 rpm
Unloaded HP required @ 1,250 rpm
Thru-drive capacity2
Size (H x W x L) in inches3
Compressor inlet maximum turbocharge boost (psig)

We’re proud of our reputation as experts in air brake systems and
leading-edge safety technologies in North America. No one understands the intricacies of the system like we do. By focusing
on the entire system – not just one part – Bendix offers efficient,
integrated, trouble-free operation along with a system that offers
you:
• Reduced Maintenance
• Simple, Integrated Design

Features

64 lbs (29 kg.)
2
31.6 cfm
3,000
6 hp
2 hp
25 hp
13.2 x 8.0 x 12.6
0 psig (Naturally Aspirated)

Reference BW-121-A for the complete list of Bendix® BA-922® Compressor
application requirements to ensure optimum operation.
2
Indicates an application specific 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 flange faces.
Note: All references to RPM are for the compressor operation.
1

ECM Position
Bendix® BA-922®
Air Compressor
Complete Retrofit Kit**
Kit includes the following:
Compressor Fitting Kit
Plumbing Kit
CNG Only Kit
Diesel Only Kit
Rear Support Bracket Kit
ECM Relocation Kit

Series 50 CNG
Not Applicable
5013695X

Engine
Series 50
Diesel Series
60 non-EGR
Rear
5013695X

Series 50
Diesel Series
60 non-EGR
Side
5013695X

5015871

5016263

5016728

5016660
5016661
5016662
not required
5016663
not required

5016660
5016661
not required
5016664
5016663
not required

5016660
5016661
not required
5016664
5016663
5016250

**Complete retrofit kit contains all the detailed kits noted. It is not necessary to
order individual kits unless applicable to your situation.

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 efficiency, and reduce your overall operating costs.
To find 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.



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