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• The safety interlock system will automatical-
ly shut off the engine if the operator leaves
the seat before engaging the brake pedal
lock.
• The safety interlock system will automatical-
ly disengage the PTO if the reverse control
pedal is pressed down with the PTO in the
“RUN” position. To re-engage the PTO, re-
lease the reverse control pedal, move the
PTO switch into the “OFF” position and then
engage the PTO while seated.
• The safety interlock system will automatical-
ly shut off the tractor engine if the operator
leaves the seat with the PTO in the “RUN”
position.
1. Operator must be sitting in the tractor seat.
2. Pull choke control knob to full choke position.
Less choking may be necessary due to variations
in temperature, grade of fuel, etc. Little or no
choking will be needed when the engine is warm.
3. Place the throttle midway between the “SLOW”
and “FAST” position.
4. Place the PTO switch in the “OFF” position.
5. Fully depress the brake pedal.
6. Turn the ignition key clockwise to the “START”
position and release it as soon as the engine
starts; however, do not crank the engine
continuously for more than 10 seconds at a time.
If the engine does not start within this time, turn
the key “OFF” and wait a minute to allow the
engine’s starter motor to cool, then try again.
7. After the engine starts, slowly release the brake
pedal. As the engine warms up, gradually push
the choke control knob all the way in. Do not use
the choke to enrich the fuel mixture, except as
necessary to start the engine.
NOTE
This engine is designed to give maximum
performance and service life if operated with the
choke fully open and the throttle in the “FAST”
position. To open the choke fully requires an
engine warmup period of several seconds to
several minutes, depending on the outdoor
temperature.
After starting the engine, push in the choke
control until the engine begins to run smoothly.
As the engine warms and begins to run roughly,
continue to push in the choke control as
necessary to keep the engine running smoothly
until the choke is fully depressed. Operating
equipment during engine warmup is not
recommended.
STOPPING THE ENGINE
CAUTION
Remove the key from the ignition switch to
prevent accidental starting or battery discharge
if the equipment is left unattended.
Place the PTO switch in the “OFF” position. Move the
throttle control lever midway between the “SLOW” and
“FAST” positions. Wait a moment to allow the engine
speed to stabilize, then turn the ignition key to the
“OFF” position. Remove the key from the ignition
switch.
TRACTOR BREAK-IN PROCEDURE
CAUTION
Never operate a new engine immediately
under full load. Break it in carefully as shown
in the table below.