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ID
19
OPERATION
No.
ID
330-3
:Overhau&
the gearbox
32
33
34
35
Op.ID
330-3
TOOLS
159
b)
Engage
the
spindle
(26)
in
the
front
bearing,
position
the
hole
for
the
spindle
locking
screw
(25)
towards
the
front.
cl
Fit
on
the
spindle
one
thrust
bearing
(28)
(the
ground
face
against
the
pinion),
the
pinion
(111)
together
with
the
needles
(30),
the
distance
piece
(31),
the
thrust
bearing
(28)
and
the
sliding
pinion
(112).
d)
Measure
the
end
play
of
the
asskmbly
in
the
casing
using
a set
of
feeler
gauges.
Select,
from
those
sold
by
our
Spare
Parts
Department,
a shim
(29)
of
appropriate
thickness
in
order
to
obtain
a
clearance
of
0.05
to
0.20
mm.
Fit
the
shim
to
the
front
of
the
pinion
between
the
pinion
and
the
thrust
bearing.
e)
Tighten
the
pointed
screw
(25)
and
its
locknut
(24)
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . .
12
mm
box
spanner
To
assemble
the
mainshaft
(see
.Pl.
43):
I
4
Remove
from
the
mainshaft
as
prepared
in
paragraph
27
the
circlips(
14),
the
shim
(15),
the
bearing
(16),
the
pinion
(17).
Fit
on
the
mainshaft,
the
bronze
bush
(33),
the
4th
speed
loose
pinion
(42),
together
with
its
needle
bearing
cage.
With
the
cones
touching
make
sure
that
there
is
clearance
between
the
4th
speed
loose
pinion
and
the
bronze
bush.
b)
Place
the
assembly
in
the
box
by
inclining
the
shaft
towards
the
rear,
to
fit
it
first
in
the
bore
for
the
rear
bearing.
4
Put
the
bearing
(18)
in
position.
d)
Put
on
the
shaft
(20)
the
pinion
(17)
the
rear
bearing
(16)
( mandrel
MR-3045,
see
Pl.
54,
fig.
1)
. . . . . . . . . . . . .
To
assemble
the
bevel
pinion
shaft
(see
P1.43):
a)
Engage
the
bevel
pinion
shaft
(23)
in
the
intermediate
train.
Put
the
roller
bearing
(108)
in
position
in
the
bore
of
the
casing
(mandrel
MR-3676-30,
see
Pl.
54,
fig.
2).
Fit
an
adjusting
shim
(113),
for
example
3,7
mm
thick,
then
fit
the
bearing
(19)
on
the
front
of
the
bevel
pinion
shaft
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
b)
Fit
the
1st
speed
lever
spindle
(21)
(see
P1.48).
Insert
a copper
joint
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
cl
Put
2 gears
in
mesh
and
tighten
the
nut
(10)
to
144
ft.lbs
(20
m.
kg).
Tighten
the
starting
handle
dog
to
87
ft.
lbs
(12
m.
kg).
Insert
a lockwasher
(spanner
1734-T,
see
Pl.
54,
fig.
3)
. .
Fit
the
primary
shaft
bearing
cover
plate
(6),
together
with
a paper
joint
smeared
with
grease,
and
the
adjusting
shims
(8)
determined
in
paragraph
27
h.
Tighten
the
fixing
screws.
Put
the
rear
bearing
(16)
in
position
(mandrel
MR-3045,
see
Pl.
54,
fig.
1).
Fit
the
adjusting
shims
(15)
and
the
circlips
(14)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . .
To
adjust
the
bevel
pinion
shaft
(see
P1.43
and
50).
NOTE
- This
adjustment
is
of
the
greatest
importance.
Giving
the
teeth
the
correct
bearing
will
ensure
silence
and
long
service
from
the
crown
wheel
and
pinion.
The
setting
dimension
is
given
in
millimetres
and
hundredths
of
millimetres
and
is
etched
on
the
ground
end
of
the
bevel
pinion.
Circlip
pliers
Mandrel
MR-3045
Mandrel
MR-
3676-30
21
mm
box
spanner
Spanner
1734-T
14
mm
box
spanner
Mandrel
MR-
3045
Circlip
pliers
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