Bendix Commercial Vehicle Systems AIR DRYER User Manual
AIR DRYER APPLICATION GUIDELINE
The following Application Guideline is a point system that is calculated based on Vehicle Configuration
and Vocation Options. Fill in points accordingly — on each line — and refer to Page 2 for dryer selections.
If a particular entry is not valid for an application, then enter ZERO (0) on that line. Refer to Page 3 for
example applications.
Vehicle configuration Points
1. Vehicle is equipped with bulk offloading or central tire inflation. See Note 1
2. For every axle (tractor and trailer – including lifts): Add 1.0 point
3. For each non-steerable lift axle (additional points): Add 1.0 point
4. For each steerable lift axle (additional points): Add 0.5 point
5. Tractor and/or trailer is equipped with air suspension. Add 0.5 point
Vocation oPtions (choose the one that best fits)
6. Vehicle is used as a city transit bus. See Note 2
7. Vehicle is used for pickup & delivery.
a) Non-fuel hauler: Add 0.5 point
{
b) Fuel hauler: Add 1.0 point
8. Vehicle is used for residential refuse. Add 4.5 points
9. Vehicle is used for rural or commercial refuse. Add 1.0 point
10. Vehicle is used as a dump truck or concrete mixer. Add 1.0 point
11. Vehicle is used for logging or construction. Add 1.0 point
12. Vehicle is used for line haul.
a) Single trailer No Points:
b) Pulling three (3) to five (5) axles
on any trailer/dolly combination:
Subtract 1.5 points:
c) Pulling six (6) or more axles on
any tailer/dolly combination:
Subtract 2.5 points:
Add lines 1-12
and use this value
on Page 2
1
Vehicles equipped with either bulk offloading or central tire inflation are required to use two air dryers with a Bendix® EverFlow® controller
assembly. No points need to be calculated. Refer to Page 2 for proper dryer selection.
2
Requires an Extended Purge version of the dryer (AD-9® EP, AD-9si™ EP, AD-IP® EP, AD-IS® EP). No points need to be
calculated. Refer to Page 2 for proper dryer selection.
CONTROLLED ELECTRONIC MEDIA DOCUMENT: Verification of revision level or adequacy is required prior to use.
1
AIR DRYER APPLICATION GUIDELINE
Application
Highway Travel Coach / RV N/R
City Transit Bus N/R
Air/Hydraulic N/R
School Bus City / Rural Route N/R
Fire Truck
Pick-up & Delivery
Fuel Hauler (Non-Bulk
Ofoading)
Line Haul
Rural and Commercial Refuse /
Yard and Terminal Jockey
Residential Refuse (with and
without Work Brake)
Dump Truck / Concrete Mixer
Off-Highway / Construction /
Loggers
Increasing Performance
AD-IP®,
AD-9®,
AD-9si
Point
Total AD-SP
3
ü
3
ü
2-6
6.5-9
2-6
3
ü
6.5-9
9.5-13
2-6
3
ü
6.5-9
2-4
6.5-9
2-6
6.5-9
2-6
6.5-9
9.5-13
®
®
AD-IS
AD-RP
ü
ü
ü
ü
ü
ü
ü ü
ü
ü
AD-9® E P,
AD-9si™ E P,
™
AD-IP® E P,
AD-IS® EP
™
AD-RP™ EP
ü
ü
ü
ü
ü
ü
ü
Bendix® Air Dryers
Tandem
Installed
7
4
Dryers
ü ü
ü ü
Bulk Ofoading N/R
Central Tire Ination N/R
Reservoir Drainage Frequency Check Monthly Monthly / 4000 Miles
®
Bendix
EverFlow®
Assembly
ü
ü
5
Bendix® AD-9®/ AD-9si™/
AD-IP® / AD-IS® / AD-RP
Air Dryers
6
™
Point Totals
Standard Purge
Extended Purge
Tandem Installed Dryers
Bendix® EverFlow® Assembly
Points 2 3 4 5 6 6.5 7 8 9 9.5 10 11 12 13 14 15 16 or above
The application chart is for reference only. If your vehicle does not fall into these guidelines, contact Bendix Engineering or TechTeam at
1-800-AIR-BRAKE.
N/R – No Points Required – Application is not dependent on point totals.
3
When selecting a Bendix® AD-SP® air dryer, note this dryer is intended for servicing low-demand air systems. For example, Line Haul applications
are limited to single tandem axle trailers.
4
Tandem dryers must be matched models (i.e. two Bendix® AD-IS® or two Bendix® AD-9® air dryers, etc.). Both dryers must be extended purge
versions.
5
There is no required compressor charge time or purge time. The operation is controlled through the Bendix® EverFlow® air dryer module.
6
The Bendix® AD-9si™ air dryer is not available in tandem or EverFlow configurations.
7
Consult Bendix Tech Team at 1-800-AIR-BRAKE (1-800-247-2725).
2
Loading...