Blue Bird Sigma Y3FE 2015, Driver'S Handbook Manual

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DRIVER HANDBOOK
Y3FE
Transmission Service Prognostics
Service prognostics is standard equipment on all Allison Gen 4 transmissions and
requires the use of Allison approved TES 295 or TES 389 fluids and Control Main filter.
Prognostics is used to predict the need for transmission maintenance. Transmission
operating parameters monitored by the prognostics feature are:
1. Oil Life Monitor
2. Filter Life Monitor
3. Transmission Health Monitor
3000 Series Transmission
Electronic shift selectors used with 3000 series transmissions have an integrated
service icon in the shape of an open-end wrench located between the SELECT and
MONITOR displays, which illuminates or flashes when a specified service threshold is
reached for one of the three prognostic parameters.
When service is due for Allison 3000/4000 Series transmissions, a wrench
icon on the shift selector’s digital display alerts the operator. You can check
the status of all three prognostics (oil, filter, clutch) simply by advancing
through the shift selector’s display using the diagnostic button or the up/
down arrow buttons.
When the fluid is due for a change:
The wrench icon stays illuminated for two minutes
after the Drive range is selected.
When the filter(s) is due for a change:
The wrench icon flashes on and off for two minutes
after the Drive range is selected.
When clutch maintenance is due:
The wrench icon appears and stays on in all ranges .
Service Icon
Mode ID
Mode Indicator (LED)
Mode Button
Press
simultaneously
to enter
diagnostic mode
and
fluid level check.
Digital Display