Fleet Maintenance - 18

VEHICLES

» Bendix offers
air dryers for
a variety of
mounting
applications.
Pictured is the
Bendix AD-IS
dryer mounted
on a frame rail.
Photo courtesy of Bendix

How to ensure optimum
air system performance
As today's commercial trucks rely more
on clean air to power various systems and
components, fleets must step up efforts
to prevent leaks, water, oil, and other
contaminants from damaging the system.
By Gregg Wartgow

[ AIR SYSTEMS ]

18 Fleet Maintenance | August 2019

T

he main driver of air system demand on a
commercial vehicle is the number and size of
the actuators on the brakes, as well as how often
they are actuated. However, vocational trucks,
bulk transport trucks, and severe duty trucks
also require air to operate the working systems
on these specialty vehicles. Furthermore, today's
more technologically advanced vehicles are placing increased demand on air systems.

"While the braking system itself hasn't changed
a whole lot in a generation, we are seeing more
auxiliary functions that run off of air," says
Richard Nagel, director of marketing and customer solutions - air charging for Bendix Commercial
Vehicle Systems. Bendix develops and supplies
active safety technologies, air brake charging,
and control systems for medium and heavy duty
vehicles and trailers.
Examples of common truck features and components in need of clean, dry air include:
Ü Air ride suspension
Ü Trailer level height
Ü Fan clutches
Ü Automatic tire inflation systems
Ü Emission controls
Ü Automated manual transmissions (AMTs) with
pneumatic shifters
"Going forward, commercial vehicles are seeing
more automated functions, such as electronic park,
that are also pneumatically controlled," Nagel adds.



Fleet Maintenance

Table of Contents for the Digital Edition of Fleet Maintenance

Uptime: Is assessing cost-per-mile enough?
Do you know your TCO?
Vehicles: How to ensure optimum air system performance
In the Bay: The ABCs of ADBs
Shop Operations: The importance of managing fluid dispensing in the shop
Training: Invest in the future
Diagnostics: All scan tools are not created equal
Management: Are you good at PM?
Fleet Parts & Components
Tools & Equipment
Guest Editorial: Cold weather solutions for fleets
Fleet Maintenance - 1
Fleet Maintenance - 2
Fleet Maintenance - 3
Fleet Maintenance - 4
Fleet Maintenance - 5
Fleet Maintenance - 6
Fleet Maintenance - 7
Fleet Maintenance - Uptime: Is assessing cost-per-mile enough?
Fleet Maintenance - 9
Fleet Maintenance - Do you know your TCO?
Fleet Maintenance - 11
Fleet Maintenance - 12
Fleet Maintenance - 13
Fleet Maintenance - 14
Fleet Maintenance - 15
Fleet Maintenance - 16
Fleet Maintenance - 17
Fleet Maintenance - Vehicles: How to ensure optimum air system performance
Fleet Maintenance - 19
Fleet Maintenance - 20
Fleet Maintenance - 21
Fleet Maintenance - In the Bay: The ABCs of ADBs
Fleet Maintenance - 23
Fleet Maintenance - 24
Fleet Maintenance - 25
Fleet Maintenance - 26
Fleet Maintenance - 27
Fleet Maintenance - Shop Operations: The importance of managing fluid dispensing in the shop
Fleet Maintenance - 29
Fleet Maintenance - 30
Fleet Maintenance - 31
Fleet Maintenance - 32
Fleet Maintenance - 33
Fleet Maintenance - Training: Invest in the future
Fleet Maintenance - 35
Fleet Maintenance - Diagnostics: All scan tools are not created equal
Fleet Maintenance - 37
Fleet Maintenance - Management: Are you good at PM?
Fleet Maintenance - Fleet Parts & Components
Fleet Maintenance - 40
Fleet Maintenance - 41
Fleet Maintenance - Tools & Equipment
Fleet Maintenance - 43
Fleet Maintenance - 44
Fleet Maintenance - 45
Fleet Maintenance - 46
Fleet Maintenance - 47
Fleet Maintenance - 48
Fleet Maintenance - 49
Fleet Maintenance - Guest Editorial: Cold weather solutions for fleets
Fleet Maintenance - 51
Fleet Maintenance - 52
Fleet Maintenance - S1
Fleet Maintenance - S2
Fleet Maintenance - S3
Fleet Maintenance - S4
Fleet Maintenance - S5
Fleet Maintenance - S6
Fleet Maintenance - S7
Fleet Maintenance - S8
Fleet Maintenance - S9
Fleet Maintenance - S10
Fleet Maintenance - S11
Fleet Maintenance - S12
Fleet Maintenance - S13
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Fleet Maintenance - S15
Fleet Maintenance - S16
Fleet Maintenance - S17
Fleet Maintenance - S18
Fleet Maintenance - S19
Fleet Maintenance - S20
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