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112
9
10
To
check
the
insulation
of the
primary
circuit.
1
OPERATION
No.
ID
211-O
: Adjustmens
on the distributor
To
check
the
adjustment
of
the
automatic
advance
curve.
The
typical
curve
is
as
follows:
O0
at
100
r.p.m.
(distributor)
1.25
to
3O
at
500
r.p.m.
5.5
to
7O
at
1,000
r.p.m.
9.5
to
11.25O
at
1,500
r.p.m.
13.5
to
15.500
at
2,000
r.p.m.
It
may
be
necessary
to
vary
the
tension
of
the
springs
of
the
advance
weights;
adjust
this
tension
by
bending
the
spring
attachment
clip.
Bring
the
distributor
from
which
the
condenser
has
been
removed
to
a temperature
of
60'
C.
After
the
platinum-
plated
screws
have
been
undone,
apply
an
A.C.
current
of
110
v,
50
cycles,
between
the
positive
terminal
and
the
earth,
inserting
a lamp
in
series
in
the
circuit.
Apply
this
voltage
for
1 minute,
if
the
lamp
lights
insulation
is
faulty.
To
check
the
operation
of
the
vacuum
diaphragm:
The
latter
must
lift
with
a vacuum
of
110
mm
mercury
and
must
have
its
maximum
amplitude
at
12'
distributor.
under
a vacuum
of
400
mm
mercury.
The
typical
curve
is
as
follows:
Advance:
O"
for
a vacuum
of
100
mm
3 to
5.75O
for
a vacuum
of
200
mm
8.25
to
10.5'
for
a vacuum
of
300
mm
10 to
12'
for
a vacuum
of 400
mm
10 to
12'
for
a vacuum
of
500
mm
.i
IMPORTANT
NOTE
-
The
operation
of
the
diaphragm
has
a great
effect
on
petrol
consumption
and
on
engine
performance.
It must therefore not be eliminated
under any circumstances.
ID
19
TOOLS
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