SECTION 07: TRANSMISSION
DOB 2490-2789 | X3-45 Commuter PA1605 Maintenance Manual (Final Version – Rev.2 April 2016)
9
3.4.1
Oil and Filter Change Interval
Allison transmissions are factory fill with
Castrol
TranSynd
fluid. Oil change must be performed
with the vehicle on a flat and level surface and
with parking brake applied. Oil and filter change
frequency is determined by the severity of service
and operating conditions of the transmission and
by the filter equipment installed. See
"TABLE 1 or
TABLE 2"
for oil and filter change intervals. More
frequent changes may be required when
operations are subject to high levels of
contamination or overheating. Filters must be
changed at or before recommended intervals.
IMPORTANT NOTE
Your transmission is equipped with High
Capacity filters. High Capacity filters allow for
increased fluid and filter change intervals in
transmissions utilizing TES295 approved fluid
or TranSynd. High Capacity filters eliminate the
requirement of the initial 5000 miles (8000km)
main filter change.
IMPORTANT NOTE
Allison Transmission recommends that
customers use fluid analysis as the primary
method for determining fluid change intervals.
Many customers have a systematical annual
transmission fluid change while, in many cases,
fluid analysis could demonstrate that the
transmission fluid is still in good condition and a
fluid change is not required. In the absence of a
fluid analysis program, the fluid change interval
listed in TABLE 1 & TABLE 2 should be used.
IMPORTANT NOTE
A mixture of TES295 and TES389 fluid must
continue to use the TES389 fluid change
intervals, until two fluid changes with only
TES295 fluid have occurred, at which time the
TES295 schedule may be used.
3.5
FLUID AND FILTER CHANGE
PROCEDURE
3.5.1 Drain
1. The transmission should be at an operating
temperature of 160ºF (71ºC) to 200ºF (93ºC)
when the oil is drained. This will ensure
quicker and more complete fluid drainage.
2. Remove the drain plug from under the
transmission (Figure 6) and allow the oil to
drain into a suitable container. Check the
condition of the oil as described previously.
3. Remove twelve bolts (item 1), two filter covers
(item 2), two gaskets (item 3), two O-rings
(item 4), two O-rings (item 5) and the two
filters (item 6) from the bottom of the control
module (Figure 6).
4. When reinstalling parts, lubricate and install
new O-rings (4) and (5) on each cover (2).
Lubricate O-ring inside filter (6) and push filter
onto cover (2). Install new gaskets (3) on
cover (2) and align holes in gaskets with
holes in cover.
CAUTION
Do not use bolts to draw the cover to sump.
This can damage the cover, seal, or sump.
5. Install filter and cover assemblies into the
filter compartment. Align each filter/cover
assembly with the holes in the channel
plate/sump. Push the cover assemblies in by
hand to seat the seals.
6. Install twelve bolts and both covers, and then
tighten to 38-45 Ft-lbs (51-61 Nm).
7. Inspect the drain plug and O-ring. Replace if
necessary. Reinstall the drain plug and tighten
to 18-24 Ft-lbs (25-32 Nm).
