Section 07: TRANSMISSION
PA1562
18
FIGURE 13: COOLER WITH RETARDER 07073
6.2.2 Volvo D13 Engine
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. Remove the rear L.H. side tag axle wheel,
then remove the rear L.H. side fender panel.
3. Disconnect the transmission hoses from oil
cooler. Cover hose ends and fittings to
prevent fluid contamination.
FIGURE 14: ALLISON OIL COOLER
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.
7. CLEANING AND INSPECTION OF
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);
3. Loose, dirty, or improperly adjusted throttle
sensor linkage;
4. Damaged or loose oil lines;
5. Worn or frayed electrical harnesses, improper
routing;
6. Worn or out of phase drive line U-joint and slip
fittings.
CAUTION
DO NOT pressure wash the transmission
electrical connectors. Water and detergent will
cause the contacts to corrode or become faulty.
7.1 BREATHER
The breather is located on the engine, flywheel
side near the valve cover. It serves to prevent
pressure build-up within the transmission and
must be cleaned to keep the passage opened.
The prevalence of dust and dirt will determine the
frequency at which the breather requires
cleaning. Use care when cleaning the engine.
Spraying steam, water or cleaning solution
directly at the breather can force the water or
solution into the transmission. Always use care
when removing the hose connector from
transmission to prevent the entry of foreign
matter.
8. ALLISON TRANSMISSION INSTALLATION
NOTE
For more clearance between the tag axle and
transmission, the tag axle may be unloaded
and jacked up, or retracted (if applicable).
Detroit Diesel Series 60 Engine Only
With the access plug removed, align one of the
12 attaching screw holes in the flexible plate with
the access opening (starter side).
Volvo D13 Engine Only
With the starter motor removed, align one of the
12 attaching screw holes in the flexible plate with
the access opening.
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