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SERVICE AND ADJUSTMENTS
I
ENGINE
FIG. 30
TO REPLACE HEADLIGHT BULB
• Raise hood.
• Pull bulb holder out of the hole in the backside of the
grill.
• Replace bulb in holder and push bulb holder securely
back into the hole in the backside of the grill.
• Close hood.
INTERLOCKS AND RELAYS
Loose or damaged wiring may cause your tractor to run
poorly, stop running, or prevent it from starting.
• Check wiring. See electrical wiring diagram in the
Repair Parts section of this manual.
TO REPLACE FUSE
Replace with 30 amp automotive-type plug-in fuse. The
fuse holder is located behind the dash.
TO REMOVE HOOD AND GRILL ASSEMBLY
(See Fig. 31)
• Raise hood.
• Unsnap headlight wire connector.
• Stand infrent oftrector. Grasp hoodat sides, tilttoward
engine and lift off of tractor.
• To replace, reverse above procedures.
_O HOOD
HEADLIGHT
% ECTO.
.
TO ADJUST THRO'FrLE CONTROL CABLE
(See Fig. 32)
The throttle control has been preset at the factory and
adjustment shouldnotbe necessary. Check adjustment as
described below before loosening cable. If adjustment is
necessary, proceed as follows:
• With engine not running, move throttle control lever to
fast position.
• Check that swivel is against stop. If it is not, loosen
cable clamp screw and pull cable back until swivel is
against stop. Tighten cable clamp screw securely.
TO ADJUST CHOKE CONTROL (See Fig. 33)
The choke control has been preset at the factory and
adjustment should notbe necessary. Check adjustment as
described below before loosening cable. If adjustment is
necessary, proceed as follows:
• With engine not running, move choke control (located
on dash panel) to full choke position.
• Loosen knob and remove cover assembly from air
cleaner.
• Choke should be closed. If it is not, loosen casing
clamp screw and move choke cable until choke is
completely closed. Tighten casing clamp screw se-
curely.
• Replace air cleaner cover assembly and tighten knob.
TO ADJUST CARBURETOR (See Fig. 34)
The carburetor has been preset at the factory and adjust-
ment should not be necessary. However, minor adjust-
ment may be required tocompensate for differences infuel,
temperature, altitude or load. If the carburetor does need
adjustment, proceed as follows:
In general, turning the mixture screw in (clockwise) de-
creases the supply of fuel to the engine giving a leaner fuell
air mixture. Turning the mixture screw out (counterclock-
wise) increases the supply of fuel to the engine giving a
richer fuel/air mixture.
IMPORTANT: DAMAGE TO THE NEEDLES AND THE
SEATS IN CARBURETOR MAY RESULT IF SCREW IS
TURNED IN TOO TIGHT.
PRELIMINARY SETTING -
• Be sure you have a clean air filter, and the throttle
control cable and choke are adjusted properly (see
above).
• With engine off turn idle mixture screw in (clockwise)
closing itfinger tight and then turn out (counterclock-
wise) 1-1/4 to 1-1/2 turns.
FINAL SETTING -
• Start engine and allow to warm for five minutes. Make
final ad ustments with engine running and shift/motion
control lever in neutral (N) posit on.
• With throttlecontrol lever in slow position, hold throttle
lever against idle speed screw and adjust idle speed
screw to obtain 1300 to 1500 RPM.
FIG. 31 24