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SECTION5: MAKINGADJUSTMENTS
,_ WARNING: Never attempt to make any
adjustments while the engine is running,
except where specified in operator's
manual.
HandleAdjustment
The handle may be adjusted to the height desired and
on Model 420 series, the handle may also be adjusted
to be in line with the tiller or swung to the left or right.
Refer to the handle adjustment in the Know Your Tiller
section for details.
BeltTensionAdjustment
Periodic adjustment of the belt tension may be required
due to normal stretch and wear on the belt. Adjustment
is needed if the tines or wheels seem to hesitate while
turning, but the engine maintains the same speed.
To adjust the tension on the belt, refer to Final Clutch
Adjustment in Assembly Instructions.
EngineAdjustment
Refer to the separate engine manual for engine
adjustment instructions.
SECTION6: MAINTAININGYOURTILLER
,_ WARNING: Disconnect the spark plug wire
and ground it against the engine before
performing any repairs or maintenance.
Engine
Refer to the separate engine manual for engine
maintenance instructions.
Maintain engine oil as instructed in the separate
engine manual packed with your unit. Read and follow
instructions carefully.
Service air cleaner every ten hours under normal
conditions. Clean every hour under extremely dusty
conditions. Poor engine performance and flooding
usually indicates that the air cleaner should be
serviced. To service the air cleaner, refer to the
separate engine manual packed with your unit.
IMPORTANT:Never run your engine without air cleaner
completely assembled.
The spark plug should be cleaned and the gap reset
every 25 hours of engine operation. Spark plug
replacement is recommended at the start of each tiller
season; check engine manual for correct plug type and
gap specification.
Clean the engine regularly with a cloth or brush. Keep
the cooling system (blower housing area) clean to
permit proper air circulation which is essential to engine
performance and life. Be certain to remove all dirt and
combustible debris from muffler area.
Lubrication
Transmission
The transmission is pre-lubricated and sealed at the
factory. It requires no checking unless the transmission
is disassembled. To fill with grease, lay the right half of
the transmission on its side, add 22 ounces of
Benalene 920 grease, and assemble the left half to it.
This grease can be obtained at your nearest authorized
dealer by ordering part number 737-0300.
Clutch Handle
Lubricate the pivot point on the clutch handle and the
cable at least once a season with light oil. The control
must operate freely in both directions.
PivotPoints
Lubricate all pivot points and linkages at least once a
season with light oil.
Tine Shafts
Remove tine assemblies and lubricate the tine shafts at
least once a season.
WheelShafts
Remove wheel assemblies and lubricate the axle shafts
at least once a season.
CleaningTineArea
Clean the underside of the tine shield after each use.
The dirt washes off the tines easier if rinsed off
immediately instead of after it dries. Always towel dry
the tiller afterwards and apply a light coat of oil or
silicone to prevent rusting or water damage.
IMPORTANT:Never use a "pressure washer" to clean
your tiller. Water can penetrate tight areas of the tiller
and its chaincase and cause serious damage to the
unit.
11
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