PREVOST X3-45 COMMUTER User Manual

SECTION 07: TRANSMISSION
10
DOB 1300-1556 | X3-45 Commuter PA-1648 Maintenance Manual First release Oct 2020
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 fluid 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 fluid to
drain into a suitable container. Check the
condition of the fluid 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.
TORQUE: 38-45 lb-ft (52-61 Nm)
7. Inspect the drain plug and O-ring. Replace if
necessary. Reinstall the drain plug.
TORQUE : 18-24 lb-ft (24-33 Nm)
FIGURE 6: DRAIN PLUG AND FILTERS
Fluid loss with filter change only
When changing main and lube filters at
recommended intervals, approximate fluid loss
for each filter as follows:
Main filter = 2 quarts (1.9 liters)
Lube filter =8 quarts (7.6 liters)
3.5.2 Refill transmission
The amount of refill fluid is less than the amount
used for the initial fill. Fluid remains in the
external circuits and transmission cavities after
draining the transmission.
NOTE
Quantities listed below are approximations and
do not include external fluid cooler lines.

PREVOST X3-45 COMMUTER Specifications

General

Engine	Volvo D13
Transmission	Allison B500
Fuel Type	Diesel
Length	45 ft (13.7 m)
Width	102 in (2.6 m)
Horsepower	500 hp
GVWR	54, 000 lbs
Height	141 in