Normal Prognostics Indication At Engine Start; Oil Life Monitor; Appendix C - Allison Transmission Other Features - PREVOST H3-45 VIP Owner's Manual

Oil Life Monitor

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Filter Life Monitor
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Transmission Health Monitor
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NOTE
The prognostics package requires the use of
TranSynd™ or an Allison approved TES295 or
TES389 licensed fluid in the transmission and
Allison High Capacity filters.
If any other fluids or filters are used, Prognostic
mode must be disabled.
Prognostic information will not be accurate with
any other fluids or filters and could result in
missed maintenance activities resulting in
transmission damage.
Refer to TES 295 or TES389 Approved Fluids
list, found under the Service/Fluids heading on
the home page of the Allison Transmission web
site.
www.allisontransmission.com
When a specified threshold is detected for any of
the serviceable conditions, the TRANSMISSION
SERVICE indicator
operator. Failure to attend to the service condition
and reset the TRANSMISSION
indicator within a defined operating period will
result in illumination of the CHECK light with
associated message in the DID, indicating the
increased probability that the service condition will
develop into a more serious condition.
To access the Prognostic Mode functions,
simultaneously press the
(Downshift) arrow buttons repeatedly. See the at
the end of this section.
NORMAL PROGNOSTICS INDICATION AT
ENGINE START
A system bulb check
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TRANSMISSION
approximately 0.5 seconds.
If Prognostics features are enabled, the
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TRANSMISSION
illuminates again for 3 seconds after the bulb
check. If Prognostics features are disabled,
the TRANSMISSION SERVICE indicator
does not illuminate again after the bulb check.
is illuminated to alert the
SERVICE
(Upshift) and
illuminates
SERVICE indicator
SERVICE indicator
PA-1619 Owner's Manual H3-45 VIP
Allison Transmission Other Features C-3

OIL LIFE MONITOR

The display message denotes the calculated
remaining life of the transmission fluid. This value
is based on the established life for the required
baseline fluid, and then is continuously adjusted
for cumulative
parameters as operating time, retarder operation,
output shaft revolutions and shift frequency.
Display
The display is a two- digit number, denoting
percentage of the fluid life which remains. New
fluid is displayed as 99%.
The TRANSMISSION SERVICE indicator
be illuminated, denoting a required change of
transmission fluid, when the remaining fluid life
reaches approximately 1 %. The indicator will be lit
steadily upon each initialization of the TCM, and
will remain on steady for approximately 2 minutes
after the first selection of "D" (drive) range each
time, until service is performed and the indicator is
reset.
Failure to perform maintenance and reset the
TRANSMISSION SERVICE indicator within a
defined period will result in the illumination of the
CHECK light with associated message in the DID
and diagnostic code P0897 Transmission Fluid
Deteriorated.
Reset
The TRANSMISSION SERVICE indicator can be
reset by a message over the SAE J1939
communication interface, with the Allison DOC™
for PC diagnostic program, or by depressing and
holding the MODE button for ten (10) seconds
while the Oil Life Monitor function is displayed. It
may also be reset by selecting N-D-N-D-N-R-N on
the shift selector, pausing briefly (less than 3
seconds) between each selector movement, with
the ignition ON and the engine not running. The
TRANSMISSION SERVICE indicator illuminates
briefly following a reset to acknowledge the reset
the
was successful.
Setting Fluid Type For Prognostics
The fluid type can be programmed if the specific
calibration allows it. The operator can do the
following:
With the engine off and the ignition on, perform the
following sequence on the selector, N-R-N-D-N-R-
N-D-N-R-N-D-N.
effects of such operating
will