Fleet Maintenance - 17

"The Eaton Endurant AMT has an oil change
interval of 750,000 miles due to the technology
and architecture of the transmission," Eaton's
Pfister says.
Filter maintenance may present some new items
to consider. For example, the Volvo I-Shift AMT
uses an oil filter that can be replaced with oil drain
intervals. It also has an oil cooler to maintain optimal temperature.

The bottom line
is uptime
According to Eaton's Pfister, an
AMT is no more challenging to
maintain than a manual transmission. It's just a matter of
learning how they are different, and how their preventive
maintenance practices are
different. Training and proper
tooling are key.
Some manufacturers offer
web-based training to provide
a fundamental understanding
of AMTs on how they work,
the primary components, and
basic diagnostics.
"Instructor-led training
helps prepare the technician
for more complex procedures
such as transmission overhauls," Pfister adds.
In addition to training,
technicians need the right
tools to properly service an
AMT. An AMT is a more technologically complex transmission. Up-to-date diagnostic
software is essential.
"Eaton's PC-based diagnostic software is called
ServiceRanger 4," Pfister
relates. "Every AMT has a
fault code hierarchy that
helps technicians quickly
identify the faults that are
most important."
Remote diagnostic capability is also important with an
AMT.
A computer is essentially
deciding when to shift gears
and perform clutch actuations.
If the transmission system
fails to perform as expected,
the ability to connect, diagnose, and repair from a remote
location can help get the vehicle back up and running faster.
"Eaton's remote diagnostics tool, IntelliConnect, helps
monitor system performance,
recognize fault codes, and
initiate fault code action plans
so fleets can better avoid catastrophic failures and costly
downtime," Pfister says.

According to Volvo's Murickan, master technicians generally need to work on AMTs since they
require the use of premium technology tools
for software calibrations and special parameter
settings. Cleanliness inside the transmission is
also important, and special tools and procedures
are required for that.
What the technician needs most is the under-

standing that AMTs are here to stay. For the fleet to
fully realize the benefits, technicians must continue practicing religious preventive maintenance
with an extra emphasis on things like air quality
and electrical system integrity.
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Fleet Maintenance

Table of Contents for the Digital Edition of Fleet Maintenance