Craftsman 536.270320 Operation Manual - Page 19

Carburetor, To Start, Engine

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OPERATION CARBURETOR The factory settings for the carburetor are for most conditions. If the engine is operated under the following conditions, the carburetor may require an adjustment. qualified service center. For service, contact a Sears or other 1. The engine has a loss of power or does not run smooth. 2. A change from summer to winter operation. 3. A 40 degree change in the operation temperature. The carburetor was adjusted at 80 degrees at the factory. 4. The engine is operated above 4,000 feet above sea level. HOW TO START THE ENGINE WARNING: The electrical system has two primary 4. Move the throttle control completely forward to the CHOKE I\1 components, an operator presence system and a or FAST position (see Figure 17). Select Reverse T_ system. The operator presence system determines if the operator is sitting on the seat. This system will stop the engine when the operator leaves the seat. The Select Reverse T`_ system gives the operator the ability to temporarily mow in reverse if he decides such operation is absolutely necessary and safe operating precautions are taken. For your protection, always make sure these systems operate correctly. NOTE: The engine will not start unless you depress the clutch/brake pedal or engage the parking brake and move the attachment clutch to the DISENGAGE position. 1. Make sure the spark plug wire is connected to the spark plug. 2. Move the speed contro! lever to the neutral (N) position (see Figure 16). 3. Make sure the attachment clutch is in the DISENGAGE tion. If the blade rotation control is not in the DISENGAGE tion, the engine wi!! not start. posiposi- Throttle Control Lever Figure 17 Speed Oontrol Lever Attachment Clutch Engage Position Figure 16 Turn the ignition key to the START {,_,_..Tp)osition. Release the key when the engine starts. The ignition key switch will automatically default to the recommended RUN-MOW position for normal mowing. See "How To Operate The Ignition Key Switch" in the Operation Section. NOTE: If the engine does not start after four or five tries, move the throttle control to the FAST position. Again try to start the engine. If the engine will not start, see the TROUBLESHOOTING CHART. 6. Slowly move the throttle control to the SLOW position. 7. Let a cold engine run for several minutes. Begin work when the engine is warm. To start a hot engine, move the throttle control to a position between FAST and SLOW. MS-3620MA 19

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OPERATION
CARBURETOR
The factory
settings
for the
carburetor
are for most
conditions.
If the
engine
is operated
under
the
following
conditions,
the
carburetor
may
require
an adjustment.
For service,
contact
a Sears
or other
qualified
service
center.
1.
The
engine
has
a loss
of power
or does
not
run smooth.
2.
A change
from
summer
to winter
operation.
3.
A 40 degree
change
in the
operation
temperature.
The
carbure-
tor was
adjusted
at 80 degrees
at the
factory.
4.
The
engine
is operated
above
4,000
feet
above
sea
level.
HOW
TO START
THE
ENGINE
WARNING:
The
electrical
system
has
two
primary
components,
an operator
presence
system
and
a
Select
Reverse
T_
system.
The
operator
presence
system
determines
if the operator
is sitting
on the
seat.
This
system
will
stop
the
engine
when
the
operator
leaves
the
seat.
The
Select
Reverse
T`_
system
gives the operator
the ability
to temporarily
mow
in
reverse
if
he
decides
such
operation
is
absolutely
necessary
and safe operating precautions
are
taken.
For your
protection,
always
make
sure
these systems
operate
correctly.
NOTE:
The
engine
will
not
start
unless
you
depress
the
clutch/brake
pedal or engage the parking
brake
and move the
attachment
clutch to the DISENGAGE
position.
1.
Make sure the spark plug wire is connected
to the spark plug.
2.
Move
the
speed
contro!
lever
to
the
neutral
(N)
position
(see
Figure
16).
3.
Make
sure
the
attachment
clutch
is in the
DISENGAGE
posi-
tion.
If the
blade
rotation
control
is not in the
DISENGAGE
posi-
tion,
the
engine
wi!!
not
start.
4.
Move
the
throttle
control
completely
forward
to the
CHOKE
I\1
or FAST
position
(see
Figure
17).
Throttle
Control
Lever
Figure
17
Speed Oontrol Lever
Attachment
Clutch
Engage
Position
Figure
16
Turn
the
ignition
key to the
START
{,_,_..T)
position.
Release
the
key
when
the
engine
starts.
The
ignition
key
switch
will
auto-
matically
default
to the
recommended
RUN-MOW
position
for
normal
mowing.
See
"How
To Operate
The
Ignition
Key Switch"
in the
Operation
Section.
NOTE:
If the engine
does not
start
after four or five tries,
move the throttle control to the FAST position. Again try to
start
the
engine.
If
the
engine
will
not
start,
see
the
TROUBLESHOOTING
CHART.
6.
Slowly
move
the
throttle
control
to the
SLOW
position.
7.
Let
a cold
engine
run for several
minutes.
Begin
work
when
the
engine
is warm.
To start
a hot
engine,
move
the throttle
control
to a position
between
FAST
and
SLOW.
MS-3620MA
19