Bendix Bw2625 Users Manual

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Compressor Application Guideline

Engineered and built for better performance today and tomorrow.

This useful Compressor Application Guide is a simple point system

using vehicle conguration and vocation options to help calculate the

Bendix compressor right for your vehicle. Review items 1 – 12, ll in the

applicable points on each line, then refer to the application grid on page 2

for the proper Bendix compressor selections that can meet your vehicle’s

intended use. When completing the worksheet, if a particular entry is not valid

for your application, enter zero on that line. Page 3 of this guide provides

several examples of how to use this helpful calculator.

Vehicle Conguration Points

1. Vehicle is equipped with bulk ofoading or central tire ination (See Note 1)

2. For every axle (tractor & trailer – including lifts): Add 1.0 point/axle 4

3. For each non-steerable lift axle (additional points): Add 1.0 point/axle 4

4. For each steerable lift axle (additional points): Add 0.5 points/axle 4

5. Tractor and/or trailer is equipped with air suspension Add 0.5 points 4

Vocation Options (Select the description that best ts)

6. Vehicle is used as a city transit bus (See Note 1)

7. Vehicle is used for pickup & delivery a) Non-fuel hauler:

add 0.5 points 4

b) Fuel hauler:

add 1.0 point 4

8. Vehicle is used for residential refuse

• Vehicle with a work brake Add 4.5 points 4

• Vehicle without a work brake Add 7.5 points 4

9. Vehicle is used for rural or commercial refuse Add 3.5 points 4

10. Vehicle is used as a yard or terminal jockey Add 7.5 points 4

11. Vehicle is a dump truck, a concrete mixer, or is used in

logging or construction Add 2.0 points 4

12. Vehicle is a re truck -- “Fast Fill” system (See Note 2) Add 6.0 points 4

13. Vehicle is used for line haul Add 0.0 points 40

Total Score

(Add lines 1 – 13 and use that sum on page two of this guide)

Note 1: Vehicles equipped with either bulk off-loading, central tire ination, or used in city transit bus

applications should use a Bendix® BA-922® compressor… no further calculations required.

Note 2: To reduce the complexity of the “Fast Fill” system, Bendix recommends that a Bendix BA-922

compressor should be used on all re truck and aircraft rescue applications.

™

For generations, the Bendix name has meant

quality, reliability and durability when it

comes to your vehicle’s air charging system.

Let us show you what we can do for you.

Compressor

Selections Point Totals

Bendix® Tu-Flo® 550

Bendix® Tu-Flo® 750

Bendix® BA-921®

Bendix® BA-922®

Points 2.5 3 4566.5 7 8 9 9.5 10 11 12 13 14 15 16 or above

Certication to all applicable vehicle regulations is the sole responsibility of the vehicle manufacturer.

The application chart is for reference only. If your truck/tractor does not fall into these guidelines, please contact the

Bendix Compressor Engineering or Technical Services team at 1-800-AIR-BRAKE (1-800-247-2725).

Compressor Application Point

Total

Bendix® Compressors

Tu-Flo® 550 Tu-Flo® 750 BA-921®BA-922®

School Bus / RV / Air over Hydraulic any a a

City Transit Bus / Highway Travel

Coach / Express Route Coach any a

School Bus Rural Route (No Auto

Brake) any a a

School Bus City Route (No Auto

Brake) any a a

Pick-up & Delivery

2.5 - 6 a a

6.5 - 9 a a

9.5 - 13 a

Line Haul

3 - 6 a a

6.5 - 9 a a

9.5 - 13 a

Rural or Commercial Refuse 6.5 - 9 a a

Rural or Commercial Refuse / Yard or

Terminal Jockey 9.5 - 13 a

Residential Refuse (with Work Brake) 6.5 - 9 a a

Residential Refuse (no Work Brake) 9.5 - 13 a

Concrete Mixer / Dump Truck /

Off-Highway / Construction / Logger

4 - 6 a a

6.5 - 9 a a

9.5 - 13 a

Fire Trucks

6.5 - 9 a a

9.5 - 13 a

Bulk Off-loader any a

Central Tire Ination any a

This compressor application matrix offers directional information when sizing a Bendix compressor for the applicable vehicle vocation.

Testing should still be performed on the specic application to verify that the compressor remains within the 25% maximum allowable

duty cycle. This application matrix assumes that all compressor installations use an air induction system that is naturally aspirated.

The “Compressor Installation & Application Review” form explains the methods used to measure the vehicle’s duty cycle.

Dump

Furniture

Increasing Performance

Example #1: Typical Line Haul Application

A typical single axle, line haul vehicle:

• Air suspension

• Three (3) axles total

Vehicle Conguration

1. Not Applicable

2. Total number of all axles = 3 points

3. Total number of non-steerable lift axles = 0 points

4. Total number of steerable lift axles = 0 points

5. Tractor is equipped with air suspension = .5 point

Vocation Options

6, 7, 8, 9, 10, 11, 12 (Not Applicable) = 0 points

Total [ 3 + 0.5 = 3.5 points ]

Selection choices include: Bendix® Tu-Flo® 550 or Bendix® BA-921® air compressors

Example #2: Line Haul Pulling Single Axle Double

A 4x2 line haul vehicle pulling:

• (2) single axle trailers

• (1) single axle dolly

• Tractor air suspension

• Five (5) axles total

Vehicle Conguration

1. Not Applicable

2. Total number of all axles = 5 points

3. Total number of non-steerable lift axles = 0 points

4. Total number of steerable lift axles = 0 points

5. Tractor is equipped with air suspension = .5 point

Vocation Options

6, 7, 8, 9, 10, 11, 12 (Not Applicable) = 0 points

Total [ 5 + 0.5 = 5.5 points ]

Selection choices include: BendixTu-Flo 550 or Bendix BA-921 air compressors

Example #3: Bulk Gravel Hauler

A bulk gravel hauling vehicle:

• Two (2) non-steerable lift axles

• Truck equipped with air suspension

• Seven (7) axles total

Vehicle Conguration

1. Not Applicable

2. Total number of all axles = 7 points

3. Total number of non-steerable lift axles = 2 points

4. Total number of steerable lift axles = 0 points

5. Tractor is equipped with air suspension = .5 point

Vocation Options

6, 7, 8, 9, 10, 12, 13 (Not Applicable) = 0 points

11 (Vehicle is used as a dump truck/construction) = 2 points

Total [ 7 + 2 + 0.5 + 2 = 11.5 points ]

Selection choices include: Bendix® BA-922® air compressor

Example #4: Fuel Hauler (Not Equipped with Bulk Ofoading)

A fuel delivery vehicle:

• Air suspension

• One (1) non-steerable lift axle

• Seven (7) axles total

Vehicle Conguration

1. Not Applicable

2. Total number of all axles = 7 points

3. Total number of non-steerable lift axles = 1 point

4. Total number of steerable lift axles = 0 points

5. Tractor is equipped with air suspension = .5 points

Vocation Options

6 (Vehicle is used as a fuel hauler) = 1 point

7, 8, 9, 10, 11, 12, 13 (Not Applicable) = 0 points

Total [ 7 + 1 + 0.5 + 1 = 9.5 points ]

Selection choices include: Bendix BA-922 air compressor

Bendix Commercial Vehicle Systems LLC • 901 Cleveland Street • Elyria, Ohio 44035 • 1-800-AIR-BRAKE • www.bendix.com

BW2625 ©2014 Bendix Commercial Vehicle Systems LLC, a member of the Knorr-Bremse Group • 04/14 • All Rights Reserved

Experience Counts. Count On Bendix.

Experience counts. Since 1924, the year our rst compressor was installed on a commercial vehicle, Bendix

has been leading the way in air charging system experience and expertise. Today, Bendix Commercial Vehicle

Systems continues as the top supplier of compressors, air treatment components and complete air braking

control systems throughout North America. More eets specify our hard-working products and systems than

any other.

Best Overall Value On The Market… Period.

From initial design, state-of-the-art Six-Sigma manufacturing, rigorous testing, and ISO/TS16949 certied

quality, to award winning customer service, technical eld sales support, and a powerful guaranteed warranty,

Bendix is second to none in providing world-class products and world-class value.

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.

To nd out more, talk to your Bendix account manager, call us

at 1-800-AIR-BRAKE (1-800-247-2725) or visit us on the web

at www.bendix.com.

Focused Expertise For The Future.

At Bendix, we never stop. Commercial vehicles are becoming more sophisticated and compressed air

requirements are increasing daily. That’s why we’re hard at work testing the next generation of air charging

system components. With highly sophisticated R&D activities and industry leading expertise around the globe,

we continue to ensure each new design meets and exceeds your needs.

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