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ENGINE COOLING
This
tractor
has an air cooled
engine.
Air
must be able to circulate
freely
around
the
engine,
through
the screen
and shroud,
and
over the fins of the cylinder
head and cylinderblock.
Keep these areas
free
of accumulated
dirt
and trash
or the engine
will
overheat
and
result
in damaged
moving
parts.
DRY-TYPE AIR CLEANER
Incoming
air for combustion is filtered
by
a dry-type
air cleaner having a filter
element
inside of the cover.
Remove
and clean or replace
the element
with a new one when loss
of power
is
noticeable.
Illust. 17
Removing the air cleaner filter
element.
Replacing the Element
Replace
the element
with a new one if dirt
does not drop off easily,
or if it is bent,
crushed
or damaged.
When replacing
the ele-
ment be sure the back plate
is securely
tight-
ened to the carburetor.
Replace
the backplate
Cleaning the Element
if bent or cracked,
then be sure the element
fits
snugly around
the inside
edge of the air
To clean
the element,
remove
the wing nut
cleaner
base.
The gasket
sur~ace s of the ele-
and air
cleaner
cover (1IIust. 17) then remove
the
ment must be flat against
the back plate
and
element
and tap it lightly
on a flat surface
to
cover
to seal effectively.
The copper
washer
cause the loose
dirt
to falloff.
Handle
the
must be in place between
the cover
and the
paper
element
with care
to avoid perforations.
wing nut to seal and prevent
unfiltered
air from
Do not use compressed
air to remove
the dirt
entering
through
the hole in the cover.
Then
as this
can rupture
the element.
Do not wash
replace
the cover
and tighten
the wing nut
or use a solvent.
finger
tight.
ELECTRICAL SYSTEM
The twelve-volt
electrical
system
on a
the tractor,
the key must be turned
to the
tractor
with electric
starting
consists
princi-
"OFF"
position
to prevent
battery
discharge.
pally
of a motor-generator,
voltage
regulator,
and a twelve-volt
battery.
SAFETY STARTING SWITCH
Use the illustrations
on page 20 and wiring
The safety
starting
switch
activated
by the
diagrams
on page 21, as a guide
for identifying
clutch
or brake
pedal
serve~
to prevent
start-
the va~ious
electrical
units
a?d for tracing
the
ing the engine
accide~tally.
electrIcal
cables
and connectIons.
Be sure
all
connections
are clean and securely
fastened.
IGNITION SWITCH
CHARGE INDICA TOR
This
instrument
(1!lust. 5) indicates
whether
the motor-generator
is charging
or
the
battery
is discharging.
If it shows
discharge
contin-
uously,
investigate
the cause
to avoid
com-
pletely
discharging
the
battery
and possible
damage
to the
motor
-generator.
Refer to poge 22
for
additional
information
on electrical
equip-
ment.
Turn
the key clockwise
to turn on the
ignition.
With electric
starting,
a further
turn~actuates
the motor-generator.
The key cannot,be
removed
when in the lION" position.
Note:
When the t:ngine
is not operating
or
the engine
has stalled
and the operator
leaves
17
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