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continued
1.
Remove the gearbox and overdrive from the car.
37.20.01.
2.
Remove the overdrive from the gearbox. 40.20.07.
3.
Before starting to dismantle the overdrive assembly,
the exterior of the casings must be thoroughly
cleaned.
4.
Mount the unit vertically in a vice with the use of
'soft' jaws.
5.
Remove four nuts securing the bridge pieces.
6.
Remove the bridge pieces.
7.
Progressively release the six nuts around the main
casing to release the clutch return spring pressure.
8.
Note the position of the two copper washers which
fit on the two studs at the top of the casing.
9.
Remove all the washers from the casing.
10.
Separate the main casing complete with the brake
ring from the rear case.
II.
Uft out the" sliding member assembly complete with
the sun wheel.
12.
Uft out the planet carrier assembly, taking care not
to damage the oil catcher which is attached to the
underside of the carrier.
13. 'fap the brake ring from its spigot in the main casing
with a suitable drift.
14.
Using a pair of pliers, withdraw the operating pistons.
IS.
Remove the sump and suction mter. 40.10.01.
16.
Remove the relief valve assembly. 40.16.04.
17.
Remove the pump non-return valve assembly.
40.16.10.
18.
Remove the oil pump assembly. 40.18.0 I.
19.
Remove the pressure mter. 40.10.08.
20.
Remove the solenoid control valve. 40.22.09.
21.
Inspect the main casing for cracks.
22.
Examine the operating cylinder bores for scores or
wear.
23.
Check the operating pistons for wear.
24.
Replace the sealing rings if there is any sign of
damage.
25.
Remove the circlip from the sun wheel extension.
26.
Take out the sun wheel.
27.. Remove the circlip from its groove on the cone clutch
hub.
28.
Tap out the clutch from the thrust ring bearing, using
a hide mallet.
29.
Extract the large circlip.
30.
Press the bearing from its housing.
31.
Examine the clutch linings on the sliding member for
any signs of excessive wear or charring.
32.
If there is any sign of this condition, the sliding
member complete must be replaced.
NOTE: It is not possible to fit new linings as these are
precision machined after they are bonded.
OVERDRIVE ASSEMBLY
- Overhaul or dismantle
40.20.10
OVERDRIVE-J TYPE
NTO~56
11
Triumph TR6 Manual. Part No. 545277 Issue I
~"'I,.AfICI
40.20.10J Sheet 1
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