Supp lement to Manual 818-1 CORR
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OPERATION
N° MA.
210-0 :
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Op.
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210-0 3
1.
Checking the
condition of the
contacts
Check
the voltage drop across
the
contacts
(
contacts
closed
)
under
a voltage
of
12
voits.
using
a testbench.
The
voltage
drop should
be
0.2
volts
max.
2. Checking the centrifugal
advance curve
o)
Note
the odvance
in stages for
steadily
increosing
engine speeds
from 0 to 3000
rpm.
and
for steadily
decreasing engine speeds
from 3000 rpm to
0,
,i,aki,,,'
surc tho iucroaso
or docroaso is
cofr,tl;/lIolIs.
These
points
must
fall
within
the
shaded area
of
the curve.
b)
Too
certain extent.
it is
possible to correct
the
advance curve,
by altering
the
tension
of the
springs
for
the centrifugal
weights
To obtoin this
condition, slightly bend
(
in tho
(1pProriCto diroction ) the securing
brackets
for the springs,
or
replace
them.
0
0
co
co
0
c
0
0
z
5
E
5
0.
0.
0,
NOTE
: If luminous
spots
are
produced
outside
the
four normal positions at speeds under
3000
rpm. make
sure the
contact points
are
dean, and
if
necessory
make sure the test-bench
batteryis
1
ully
charged.
before
repiacing
the
contoct-breaker
unit, the
spring of
which
may have
weakened.
3.
Checking the spark
regulurity
Whatever
the speed
of
rotation,
the angulor
difference
of
the
f our
opening
positions
of
the
points
must
not
exceed
1°
( %l
lximam
rprn
of rlistribator: .3250
r/m.
oAcot !)t'
(.If± 1!R 525 068
ii
.
2750
r/nn
4. Checking
and ad ju
sting the dwell
angle
Run
the
distributor at
a
steady
speed,
and check
that
the
dwell
angle is equol
o
550
±
2°30.
If this
is not the
case, adjust the
contact
breaker
to
obtain
this
condition.
5.
Checking
the ignition condenser
With
the
contact
points open. measure
the capacity
of the
condenser.
This value must
be
0.30
t
0.03
1iF,
If this is not the case. replace
the
condenser.
6. Check
the vacuum advance
curve
This check
is
carried
out at o
constant
rpm of 200,
with
no centrifugal
advonce.
Check the
points
of
the
increasing curve. and
the decreasing
curve.
If
the
vacuum
capsule
has
11
brcoitbor.
it will be
necessary
to blank
it off
during
this
check.
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