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ID
19
OPERATION
No.
ID
5 3 3
- 3 : Work on the starter motor
Op.ID
533-3
323
8
To
replace
the
springs
of
the
'BANDA'
pinion
assembly
(see
Pl.
121
A):
a)
b)
c)
d)
Release
the
spring
to be
replaced,
from
the
sleeve
and
from
the
pinion,
by
cutting
it
on
a grinding
wheel
if
necessary.
e)
Prepare
the
tooling
indicated
in
figs.
6,
7 and
8.
Prepare
the
new
springs:
using
lever
MR-3526-12
as
shown
in
fig.
1 and
3,
deflect
the
end
coils
so
as
to
bring
the
tips
of
the
springs
to approximately
'a ' = 24 mm
from
one
another
(see
fig.
2).
Fit
the
springs
(see
fig.4
and
5):
1.
Fit
the
threaded
sleeve
(1)
on the
threaded
shaft,
gripped
in
a vice.
2.
Fit
the
springs.
If necessary,
lever
apart
the
tips
of
the
springs
by
means
of
two
screwdrivers,
so
as
to
insert
them
in
the
holes
in
the
sleeve
(1).
3.
Fit
the
pinion
and
its
sleeve
(2).
If
necessary,
separate
the
tips
of
the
springs
by
means
of two
screw-
drivers,
so
as
to
insert
them
in
the
holes
in
the
sleeve
(2)
of
the
pinion.
4.
Remove
the
pinion
assembly
from
the
threaded
shaft.
Place
the
tips
of the
springs
in
position
(see
fig.
4):
1.
Fit
the
spring
on
the
support
MR-3526-13
(see
fig.
5) and
close
up
the
spring
coils,
by
means
of a press.
Insert
a piece
of
sheet-metal
between
the
end
of
the
press
and
the
support.
2.
Repeat
the
operation
several
times,
so as
to
restore
the
springs
original
form.
Ensure
that
the
tips
of
the
springs
are
properly
located
inside
the
holes
in the
sleeve
(1)
and
the
sleeve
(2)
of the
pinion.
. . . . . . . . .
9
10
11
12
13
14
15
Clean
the
parts.
Assembly
(see
Pl.
118
and
119).
Check
the
armature
on
Vee
blocks
or
between
centres.
Check
the
insulation
of the
armature
with
a suitable
insulation
tester.
Grind
the
commutator.
Do
not
reduce
the
original
diameter
of 40
mm
by
more
than
2 mm.
Remove
the
commutator
insulation
after
grinding,
by
means
of
a saw
blade
thinned
down
to
the
width
of
the
insulation,
or
with
a file.
1
Check
the
field
coils
with
a test
lamp.
If the
bearing
plate
brush
holder
(8)
is
not
stripped,
check,
with
a 110
volt
or
preferably
a 220
volt
test
lamp,
the
insulation
of
the
positive
brush
holder
(12)
in
relation
to
earth.
To
connect
the
positive
brush
(9).
Solder
the
brush
wire
on
its
coil
connection,
using
a soldering
iron.
NOTE
- Never
use
killed
hydrochloric
acid,
but
special
soldering
paste
or
resin.
TOOLS
Support
MR-3526-11
Lever
MR-3526-12
Support
MR-3526-13
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- Starter Motor
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