GEARBOX
(v)
Assemble clutch throw-out bearing
and sleeve and install with clutch
operating shaft wil spring and clutch
operating fork, positioning both with
special securing setscrews, wire locking
the latter. Install grease nipple
with
fibre washer into R.H. end of clutch
operating shaft.
(W)
Fit top cover assembly with selector
mechanism, paper joint, securing with
eight setscrews.
10.
TO
DISMANTLE
TOP COVER
ASSEMBLY
(a)
Remove oil level dipstick.
(b)
Ensure that the selector mechanism is
in the neutral position.
(c)
Remove change speed lever positioning
bolt, nyloc nut and setscrew. This
enables the change speed lever com-
plete with knob, cap, spring retainer,
spring and ball end to be removed as
an assembly. Further dismantling re-
quires the removal of the knob
and/or
the removal of the screwed change
speed lever ball end.
(d) Remove 1st and 2nd speed selector
shaft wire locked stop screw and
#"
dia. positioning
ball,
spring and re-
taining screw, then 1st and 2nd speed
bronze selector fork wire locked posi-
tioning setscrew, and slide selector
shaft rearwards clear of the casting to
enable the selector fork to be removed.
(e)
Remove reverse selector fork and shaft,
carrying out procedure as in (d)
except that the shaft is positioned by a
plunger spring, distance piece and
retaining
screw instead of the ball,
spring and retaining screw.
(f)
Remove 3rd and top speed selector
shaft and fork, carrying out the pro-
cedure as in (d).
N.B.
It is important that no attempt
is made to move more than one
selector shaft at a time otherwise
damage
will
be caused to the selector
shaft bores by the interlock mechanism
consisting of two
g"
dia. ball bearings
located in the top cover casting either
side of the 3rd and top speed selector
shaft, and the
.185" dia. interlock
roller made of key steel which makes
contact with these balls being in-
stalled, in a hole drilled transversely
through the 3rd and top speed selector
shaft. (See Fig. 1.)
The interlock roller and steel balls can
easily be shaken or pushed out of
position
if
it is desired to examine
them.
(g)
Further dismantling of the selector
shafts only requires the removal of the
selector shaft end pieces on the 1st and
2nd and reverse rods, they are located
by a wired setscrew
;
on the 3rd and
top they are silver soldered together.
(h)
Remove the two setscrews and spring
washers from the oil sealing ring cover
plate, enabling the plate and three rub-
ber sealing rings at the end of the
selector shaft bores to be removed.
(i)
The three 16G pressing selector shafts
welch plugs located at the front of top
cover and the two 14G pressing welch
plugs either side of top cover
can
easily be removed with a suitable
drift.
(j)
The threaded plug located on the top
covcr
can
also be removed.
TO
ASSEMBLE,
carry out the reverse
procedure to that of dismantling, but
for ease of assembly install the
$"
dia.
interlock mechanism balls after the 3rd
and top speed selector shaft has
been
fitted but before the reverse and 1st
and 2nd selector shafts.
Important.
Whilst fitting the selector shafts
make
sure that the selector shaft or shafts
already fitted are
in
the neutral posi-
tion.
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