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SERVICING PAPER CARTRIDGE
This engine is equipped with a dry-type air cleaner
element, which should be checked every 100 oper¬
ating hours and replaced if dirty. It should be checked
and if necessary replaced more often under extremely
dirty, dusty conditions. Do not wash element in any
liquid or attempt to blow dirt off with air hose as this
will puncture filter element. Carefully handle new ele¬
ment — do not use if gasket surfaces are bent or
twisted. Check the following when installing a new
element: (See Figure 32.)
1.
Backplate must be flat on gasket of carburetor
elbow. Replace backplate if bent or cracked.
2.
Gasket surfaces of element must be flat against
backplate and cover to seal effectively.
3. Seal on cover must be in place to reduce noise
and vibration of the cover. Vibration can cause
stud hole In cover to enlarge, thus permitting dirt
to enter carburetor.
4.
Wing nuts must be fingertight - do not over¬
tighten.
Properly cleaned and installed air cleaner elements
are the best guarantee to continued long and satis¬
factory engine life.
CLEANING ENGINE
This tractor has an air-cooled engine. Air must be able
to circulate freely around the engine, through the
screen, shroud, and over the fins of the cylinder head
and cylinder block. Keep these areas free of accu -
mulated dirt and trash or engine will overheat and
result In damaged moving parts. Periodically clean the
inside of the side panels and grille for adequate
cooling.
■I^NOTE
This machine is designed to cool properly with
the engine side panels In place. Operating
the machine without panels in place may re¬
sult in inadequate cooling.
SPARK PLUGS
^^WARNING
To avoid possible injury, be sure engine is off
and cool before making any adjustment or
repairs.
■^NOTE
Remove all dirt from around the spark plugs
before removing.
To remove spark plugs, always use a spark plug
wrench.
Check gap after every 100 hours of
operation.
Replace a defective plug with a new plug. Set gap at
,025 inch. (See Figure 33.) Tighten plug to 10-15 ft-
Ibs.
See your authorized dealer for the correct
replacement plug.
Figure 33
1. Spark Plug
CLEANING OF CYLINDER HEADS
Cleaning of the cylinder heads should only be done
by your authorized Cub Cadet Dealer. This process is
to be done to keep your engine properly cooled and
at its peak efficiency. The frequency of cleaning is
dependent upon the type of fuel used. When leaded
fuel is used, the cleaning interval is 250 hours, and
with unleaded fuel the cleaning interval is 500 hours.
LIGHTS
The headlights are sealed-beam units.
Refer to
"SPECIFICATIONS" when replacement is necessary.
To replace the taillight lamp, remove socket and bulb
from the back of the taillight by rotating socket 1/4
turn. Refer to "SPECIFICATIONS".
FUSE
Always use the same capacity fuse for replacement.
Refer to "SPECIFICATIONS." If electrical system mal¬
functions, check the fuse.
To install a new fuse, press in on the fuse housing cap
and turn counterclockwise to remove it from the fuse
housing. Remove the old fuse and replace with a new
one. Then reassemble the cap to the housing.
24
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