february2022 - 21
and rattle a bit. But if a lot of particulate matter
is still stuck to the filter, the technician will see a
ring on the ground. "
Another essential test is to shine a bright light
on the DPF. " Our (Enviromotive) cleaning machine
has a built-in, high-lumen light to help detect
internal cracks or other damage, " Koukal said. A
technician could also use a high-lumen flashlight.
Tapping into
technology
It's important for technicians to
stay on top of software updates.
" You never know when an
update includes something
designed to improve ATS performance,
perhaps something
DPF-specific, " Otto said.
Case in point, the nationwide
computer chip shortage
has created some ATS issues.
As Noregon's Lackey explained,
component manufacturers
gained approval from the EPA
in the fall to reprogram their
systems to ignore DEF quality
sensors that would typically
derate a truck upon reaching
a defined threshold. That is
because the chip shortage is
making it impossible to replace
faulty DEF sensors.
" Fleets should ensure that
all truck components are
operating the latest software
versioning to help mitigate
side effects from the supply
shortages, " Lackey advised.
" Updating can be done over
the air in many cases, or
during the truck's next physical
diagnostic connection. "
Lackey said technology can
also help fleets alleviate supply
chain headaches through
analytics and forecasting.
" For example, we've learned
from analyzing fault data that
one manufacturer's engines
consistently register a fault
around 400,000 miles, advising
that the DPF be replaced, "
Lackey said. " Instead of being
caught off guard with limited
options due to supply chain
issues, projecting maintenance
issues like this gives the fleet
more time to order parts and
not rely on just-in-time delivery
when the fault occurs. "
Remote diagnostics, Lackey
added, are an excellent first
line of defense against issues
like this. " Using a tool like
TripVision Uptime, fleets can
set alerts for certain faults-
such as high soot level-and
FleetMaintenance.com/inquire
February 2022 | FleetMaintenance.com
21
take immediate action when one becomes
active, " he said.
" Components in low supply should be treated as
more important than in normal times. If a truck
needs to be downed for a DPF-related maintenance
issue, fleets should consider downing it
sooner to prevent longer-term damage to the
system, " Lackey continued.
To get to that point, fleets need to get on a good
DPF maintenance routine that is more proactive
than reactive. And when they get on a proactive
routine that is customized to a given vehicle's
actual needs, that's even better.
For related content go to
FleetMaintenance.com/equipment
http://www.FleetMaintenance.com/equipment
http://www.FREEDOM-BATTERIES.COM
http://www.FleetMaintenance.com/inquire
february2022
Table of Contents for the Digital Edition of february2022
Hitched Up: Planning for the shop of the future
Equipment: Innovation powers up modern CV batteries
In the Bay: Look upstream to reduce DPF downtime
Shop Operations: Best practices to clean and prevent shop spills
Under Vehicle: Pumping up TPMS and ATIS maintenance practices
Body & Cab: 'Maintenance-free' LED headlights still need TLC
Management: The pitfalls of promoting technicians to supervisors
Diagnostics: Climbing out of the diagnostic rabbit hole
Fleet Parts & Components
Tools & Equipment
Classifieds
Guest Editorial: Fractional air filter improvements make your fleet whole
february2022 - 1
february2022 - 2
february2022 - 3
february2022 - 4
february2022 - 5
february2022 - Hitched Up: Planning for the shop of the future
february2022 - 7
february2022 - Equipment: Innovation powers up modern CV batteries
february2022 - 9
february2022 - 10
february2022 - 11
february2022 - In the Bay: Look upstream to reduce DPF downtime
february2022 - 13
february2022 - 14
february2022 - 15
february2022 - 16
february2022 - 17
february2022 - 18
february2022 - 19
february2022 - 20
february2022 - 21
february2022 - Shop Operations: Best practices to clean and prevent shop spills
february2022 - 23
february2022 - 24
february2022 - 25
february2022 - 26
february2022 - 27
february2022 - 28
february2022 - 29
february2022 - Under Vehicle: Pumping up TPMS and ATIS maintenance practices
february2022 - 31
february2022 - 32
february2022 - 33
february2022 - 34
february2022 - 35
february2022 - Body & Cab: 'Maintenance-free' LED headlights still need TLC
february2022 - 37
february2022 - 38
february2022 - 39
february2022 - 40
february2022 - Management: The pitfalls of promoting technicians to supervisors
february2022 - Diagnostics: Climbing out of the diagnostic rabbit hole
february2022 - 43
february2022 - Fleet Parts & Components
february2022 - 45
february2022 - Tools & Equipment
february2022 - 47
february2022 - 48
february2022 - Classifieds
february2022 - Guest Editorial: Fractional air filter improvements make your fleet whole
february2022 - 51
february2022 - 52
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