PREVOST LE MIRAGE XLII BUS SHELLS User Manual

Section 07: TRANSMISSION
PA1225
12
6. TRANSMISSION OIL COOLER REMOVAL
6.1 TRANSMISSION WITHOUT RETARDER
Stop engine and allow engine to cool. Close
both heater line shutoff valves (refer to Section
05 ‘’Cooling’’).
To drain the cooling system, proceed as per
Section 05 ‘’Cooling’’, paragraph 5: Draining. If
the cooling system is contaminated, flush
system as per Section 05 ‘’Cooling’’, paragraph
7: Flushing.
1. Disconnect and remove the engine air intake
duct mounted between the air cleaner
housing and the turbocharger inlet.
CAUTION
To avoid damage to turbocharger, cover the
turbocharger inlet opening to prevent foreign
material from entering.
2. Disconnect the two transmission hoses from
oil cooler. Cover hose ends and fittings to
prevent fluid contamination.
WARNING
A significant amount of oil may drain from oil
lines when they are disconnected.
3. Unfasten the constant-torque hose clamps
and remove the two hoses.
FIGURE 10: MODINE OIL COOLER 07072
4. Unscrew the four holding nuts and remove
the U-bolts, remove the oil cooler from
engine compartment.
5. Reinstall transmission oil cooler by using
reverse procedure.
6.2 TRANSMISSION WITH RETARDER
Stop engine and allow engine to cool. Close
both heater line shutoff valves (refer to Section
05 ‘’Cooling’’).
1. To drain the cooling system, proceed as per
Section 05 ‘’Cooling’’, paragraph 5: Draining.
If the cooling system is contaminated, flush
system as per Section 05 ‘’Cooling’’,
paragraph 7: Flushing.
2. Disconnect and remove the engine air
intake duct mounted between the air cleaner
housing and the turbocharger inlet.
CAUTION
To avoid damage to turbocharger, cover the
turbocharger inlet opening to prevent foreign
material from entering.
3. Disconnect the transmission hoses from oil
cooler. Cover hose ends and fittings to
prevent fluid contamination.
WARNING
A significant amount of oil may drain from oil
lines when they are disconnected.
4. Unfasten the constant-torque hose clamps
and remove the two hoses.
5. Unscrew the holding bolts and nuts and
remove the oil cooler from engine
compartment.
FIGURE 11: COOLER WITH RETARDER 07073
6. Reinstall transmission oil cooler by using
reverse procedure.
7. CLEANING AND INSPECTION OF THE
ALLISON AUTOMATIC TRANSMISSION
The exterior of the transmission should be
cleaned and inspected at regular intervals. The
length of service and severity of operating
conditions will determine the frequency of such
inspections. Inspect the transmission for:
1. Loose bolts (transmission and mounting
components);
2. Oil leaks (correct immediately);

PREVOST LE MIRAGE XLII BUS SHELLS Specifications

General

Brand	PREVOST
Model	LE MIRAGE XLII BUS SHELLS
Category	Buses
Language	English