december2022 - 34

» Allison introduced the eGen Power
family of fully electric axles in
2020. Currently consisting of four
models, these e-Axles are modular
and designed for easy integration
into an existing vehicle chassis.
Allison Transmission
on vocation and duty cycle, the
fluid and filter may last for the
vehicle's lifetime. "
One instance where a fluid or
filter change may be required is
if there is another primary failure
in the e-Axle or a suspectDOUBLING
DRAIN INTERVALS.
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oils doubled their drain intervals*
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and helped them to be a more
ed failure of the cooler system.
" Allison does not anticipate
these types of failures from our
e-Axles, " Harbin said. " But in
the event that one did occur, a
technician may be instructed to
change the fluid and filter. One
reason this may be recommended
is to eliminate the chance that
any debris made it into the fluid. "
Other than that, technicians
should simply continue inspecting
brakes, wheel end suspension
and mounting points,
cooling connections, and cable
connections. " These are unique
interfaces that do not always
exist with our conventional
transmissions, " Harbin pointed
out. " That's why we would
recommend that
technicians
establish new inspection locations
for these interfaces. "
The reduction in maintenance
doesn't mean there won't be
plenty of adaptations a technician
will have to make, as they
will have to act differently when
working around the high-voltage
cables, with the EVs likely
cordoned off in a special bay
rigged for the work.
Those components also make
the act of picking out various
fluids more complicated.
" The increasing use of EVs
also changes the types of fluids
required, because these fluids
often have to be compatible
with batteries, electric components,
and wiring, " Bowles
noted. " Off-the-shelf fluids are
being used today for electrified
applications, but you can expect
tailored e-fluids with the next
generation of more compact,
integrated designs. "
There will be plenty more to
DURON
HEAVY-DUTY ENGINE OILS
THE TOUGHER. THE BETTER.™
34 Fleet Maintenance | December 2022
Trademarks are owned or used under license.
*Extending drain intervals should always be undertaken
in conjunction with an oil analysis program.
learn about EV e-powertrains
as they come into the market,
and fleets can expect a lot of
changes as the next generation
of EV designs are introduced
and EV market share continues
to grow. But in the meantime,
conventional transmissions will
continue to drive the industry,
with incremental improvements
for many years to come. Shops
and fleets will have to keep their
eyes on both to make the transition
more smooth.
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december2022

Table of Contents for the Digital Edition of december2022
