june2021 - 13

» The NanoLeak Finder allows for easy connection to a
vehicle's main air-holding tank for the brake system. An
automated, two-minute test is run to determine how
much leak-down is occurring. The final step is to " sniff
out " the leak with the NanoLeak sniffing device.
Photo courtesy of Redline Detection
" One of the big topics now is that some fleets have reported
taking delivery of new vehicles that already have air leaks, "
Hawkins said. " Sometimes it is a matter of things being assembled
incorrectly, or maybe some components were not high-quality
enough. Sometimes it is something simple like hoses not
being cut correctly to make the perfect seal. That is the nature
of the beast. Heavy duty trucks have always had leaks like this. "
According to Chuck Brodie, field service team leader for ZF
Commercial Vehicle North America, air brake system leaks
are generally not a problem - except for one potential issue.
" We don't typically see any leaks at our valves unless there is
a fitting issue, " Brodie pointed out. ZF is a technology company
that supplies systems for cars, commercial vehicles, and industrial
technology. ZF acquired WABCO Holdings in May 2020.
" Sometimes it is a matter of things
being assembled incorrectly, or maybe
some components were not high-quality
enough. Sometimes it is something
simple like hoses not being cut
correctly to make the perfect seal. "
Mark Hawkins, head of technical products, Redline Detection
To Brodie's point regarding fitting issues, technicians should
always ensure that fittings are installed correctly and that
air lines are carefully routed to avoid damage. Additionally,
it is important to use care when diagnosing a leaking valve.
" Air coming out of the exhaust port of a valve doesn't always
indicate an issue with the valve, " Brodie said. " The air brake
June 2021 | FleetMaintenance.com
13

http://www.FleetMaintenance.com

june2021

Table of Contents for the Digital Edition of june2021

Uptime: The path to predictive maintenance
Editor's Note: Using resources wisely
Equipment: Getting to the bottom of air brake system leaks
In the Bay: Commercial vehicle clutch care
Shop Operations: How digitizing driver communication can improve maintenance
Fluid & Filtration: Why fleets shouldn't skimp on oil filters
Technology Trends: Gaining an advantage
Management: KPI fundamentals
Economic Outlook: Economic recovery update
Fleet Parts & Components
Tools & Equipment
Classifieds
Guest editorial: Benefits of remote brake system monitoring
june2021 - 1
june2021 - 2
june2021 - 3
june2021 - 4
june2021 - 5
june2021 - 6
june2021 - 7
june2021 - Uptime: The path to predictive maintenance
june2021 - 9
june2021 - Editor's Note: Using resources wisely
june2021 - 11
june2021 - Equipment: Getting to the bottom of air brake system leaks
june2021 - 13
june2021 - 14
june2021 - 15
june2021 - 16
june2021 - 17
june2021 - In the Bay: Commercial vehicle clutch care
june2021 - 19
june2021 - 20
june2021 - 21
june2021 - 22
june2021 - 23
june2021 - Shop Operations: How digitizing driver communication can improve maintenance
june2021 - 25
june2021 - 26
june2021 - 27
june2021 - 28
june2021 - 29
june2021 - 30
june2021 - 31
june2021 - 32
june2021 - 33
june2021 - Fluid & Filtration: Why fleets shouldn't skimp on oil filters
june2021 - 35
june2021 - 36
june2021 - 37
june2021 - Technology Trends: Gaining an advantage
june2021 - 39
june2021 - Management: KPI fundamentals
june2021 - Economic Outlook: Economic recovery update
june2021 - Fleet Parts & Components
june2021 - 43
june2021 - Tools & Equipment
june2021 - 45
june2021 - 46
june2021 - 47
june2021 - 48
june2021 - Classifieds
june2021 - Guest editorial: Benefits of remote brake system monitoring
june2021 - 51
june2021 - 52
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