THREE CYLINDER IGNITION (Con't.)
5.
Precautions in Operation
5.1
At
engine starting
Before starting engine, check connections
of
each
coupler
and loosening
of
each
screw and also
lead
wires
if
not
short circuit
to
the generator body.
5.2
When
couplers
are
off
or
lead
wires short circuit in
operation, the
following
troubles
are
likely
to
occur:
(
1)
Off
of
the couplers between the generator and the
CDI
unit
- - -
If
all
of
the couplers
are
off
instanta-
neously, there would
be
no trouble. However, the coupler
of
pulser
lead
be
off
first and then exciter
lead
gets
off,
the main
thyristor
would
be
damaged due
to
overvoltage.
(2)
Off
of
coupler between the CDI
unit
and ignition
coils - - - damage
of
the main
thyristor
due
to
over-
voltage.
(3)
Short
circuit
of
ignition
leads
and
lead
wire (orange)
---damage
of
main
thyristor
due
to
overvoltage.
(4)
Short circuit
of
lead
wire (white) - - - deteriora-
tion
of
main
thyristor
due
to
overvoltage.
(5)
Short
circuit
of
lead
wire (red) - - - no damage,
however, no spark.
(6)
Off
of
plug
caps
from
plugs in operation - - - no
damage, however, no spark.
5.3
To
stop
an
engine operation
To
stop
an
engine operation, stop
it
by
the stop
lead.
To
pull
out
couplers and/or plug
caps
in operation
of
engine
will
cause
such
troubles above mentioned.
59
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