Kohler l654 Руководство по эксплуатации - Страница 18

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MAGNETO
'
-
Two different
magnetosare
in use on these engines-
the standard
type is shown on page 5.1 and
the optional
radio
shielded
type is shown below.
Both are flange
mounted
on the front support
plate and
.
driven
off an idler
gear
which is,
in turn, driven
off the crankshaft
gear.
The breaker
points,
coil and
condenser
are located
inside
the unit.
A built-in
impulse
coupling
imparts
a strong
spark for starting
when rotational
speeds
are low.
Avoid
removing
magneto
from
the engine
since
it must be retimed
to
the engine
when reinstalled-
this should be done only by a qualified
mechanic.
Magneto Service:
After each 500 hours of operation,
remove
magneto
end cap and check condition
of
breaker
points--
if dirty,
clean
with lacquer
thinner and a coarse
(lint free)
cloth.
.
If slight amount of
pitting
and metal
transfer
is noted,
dress
contacts
with tungsten file
or a fine stone.
Replace
points
if
badly worn or pitted.
Reset
gap as follows
after
servicing
or replacing
points:
1.
Turn engine
over until points are wide open (at highest
point on cam).
Maximum
opening
should
be
.OlP.
Proceed
with Step 2 if adjustment
is necessary.
2.
Loosen
clamp
screws
slightly
so that contact
plate can be moved --insert
blade in adjusting
slot
then shift plate until
.
019
maximum
clearance
is measured
between
contacts.
Retighten
clamps
after
adjustment.
.
3.
Lubricate
cam wick with Rycon
grease
each time breaker
points are serviced.
Wiring:
When viewed
from
the terminal
end,
the standard
unit rotates
in a clockwise
direction
while
the shielded unit rotates
in the opposite
direction.
The number
1 terminal
is marked
on each end cap.
Firing
order
of the engine
is 1 - 3 - 4 - 2.
Refer
to Figure
5-l
for proper
connection
of the high ten-
sion leads from the standard
type magneto
to spark plugs --refer
to Figure
below
for connections
to
shielded
type magneto.
The leads
must be properly
connected
to make the engine fire
in the correct
order.
SHIELDED
MAGNETO
(TOP VIEW)
TO 85 TERMINAL
IN CONTROLLER
TO # 2
PLUG
TO # 1
PLUG
r-
SET GAP ON SHIELDED
PLUGS
AT .018"
I
TO #
4
PLUG
TO iy
3
PLUG
FIGURE 5-2 -- WIRING CONNECTIONS
-
SHIELDED
TYPE MAGNETO
.
52 a