GEARBOX
ILLUSTRATIONS
Page
Page
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16
Fig. 17
Fig. 18
Fig. 19
Fig. 20
Fig. 21
Exploded view of Gearbox Casing,
Extension housing
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Exploded view of Gears
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Sectional view of Gearbox
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Gearbox ready for withdrawal
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Aligning Clutch Floating Plate
with mandrel
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,....,
Showing the removal of Gearbox
extension with Churchill Tool No.
20S63
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Countershaft and Reverse Locat-
ing Screw partially withdrawn
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Showing Needle Roller Retainer
tube Tool No. 20SM. 68 being
used to drive out Countershah
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Extracting Constant
Pinion
Shaft
assembly with Tool No. 20SM.
66A
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-..-
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Extractionof Constant Pinion Ball
Race with Churchill Press No.
4221 and adapter from set S4615
Driving Mainshaft to rear with
Tool No. 20SM. 1 to free centre
main
bearing
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Removal of Top and Third Syn-
chro Unit
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Showing the removal of the Main-
shaft Circlip
with
Churchill Tool
No. 20SM. 69
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Removing Mainshaft CentreBear-
ing with Churchill Press No. 4221
and adapter from set No. S4615
Fitting Needle Roller Retainer
Rings with Churchill Tool No.
20SM. 68
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Fitting Mainshaft Centre Bearing
with Churchill Press No. S4221
and adapter from set No. S4615
Checking Second Mainshaft Con-
stant Gear for endfloat
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Checking Third Gear ~ainshaft
Constant Gear for endoat
Checking Mainshaft Gear ~ush
overall float
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Fixture which
can
be""readi1y
manufactured to test axial loading
Fitting Mainshaft Circlip with
Churchill Tool No.
20SM.
46.
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Fig. 22
Fig. 23
Fig. 24
Fig. 25
Fig. 26
Fig. 27
Fig. 28
Fig. 29
Fig. 30
Fig. 31
Fig. 32
Fig. 33
Fig.
34
Fig. 35
Fig. 36
Fig. 37
Fig. 38
Fig. 39
Fig.
40
Fig. 41
Fig. 42
Fig. 43
Fitting Bearing on Constant
Pin-
ion shaft
with
Churchill Press No.
S4221 and adapter from set No.
S4615
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Measuring the gaD between Bauik
Ring andWCone
I.....
Inserting Churchill ~ool'No. 20s:
77 preparatory to driving out
needle roller retaining tube
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Fitting extension
all- ear in^
and
Thrust Washer
with
Churchill
Tool No. 20s. 87
L...
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Fitting Extension Housing
0;
Seal with Churchill Driver Tool
No. 20s. 87
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Tightening Driving Flange Secur-
ing Nut
with
torque spanner
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Fitting front Cover
Oil
Seal
with
Tool No. 20SM. 73
...
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Assembling Front Cover, utilising
Churchill Tool No. 20SM. 47 to
protect seal face
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Checking overall float
of
Main-
shaft Bushes
with
feeler gauge
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Showing the
Oil
Transfer Hole and
method of wiring bolts. The gear-
box casing has to be drilled on
early models whereas
all
present
production are already drilled
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Showing correct location of four
Springs
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~lttin~
m ear box
to'&erd'zve
UZ
This operation is shown being
carried out
s et hod
of setting valve operating
Levers
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Setting Solenoid Lever
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Showing the position of the Iso-
lator Switchonthe Gearbox Cover
Showing the position of the Over-
drive Control
Instructions for fitting the ~ei&
Switch
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Overdrive ~ontG'~ircic
Ghost view of Top Cover
As:
sembly
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Top Cover showing Isolation
Swtches
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Adjusting the Isolation switches
Wiring Diagram
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