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equalamountofgrindingtopreventan
unbalancedblade.
Anunbalancedbladewillcauseexcessive
vibrationwhenrotatingathighspeedsandmay
causedamagetotheunit.Thebladecanbetested
forbalancebybalancingitonaroundshaft
screwdriverornail.Removemetalfromtheheavy
sideuntilitisbalancedevenly.Seefigure20.
Whenreassemblingtheblade,tightencenter
bolttobetween550and650inch-poundsand
thetwoouterboltstobetween250and350inch-
pounds,orlackingtorquewrench,tighten
securely.
5. TIRES
Recommended operating tire pressure is 24 p.s.i.
(sidewall of tire may give tire manufacturers
recommended pressure). Equal tire pressure should
be maintained on both tires.
_ ARNING: Excessive pressure when seating
beads may cause tire/rim assembly to burst with
force sufficientto cause serious injury.
Prepare your chipper-shredder for storage at the end
of the season or if the unit will not be used for 30 days
or more.
1. Insert screw driver through hole
d./
2. Blade should be parallel to ground
Screv_
Driver_ Bla_d_e
/
Ground
Figure 20
3. ADJUSTING CARBURETOR
WARNING: If any adjustments are made to
the engine while the engine is running (e.g.
carburetor), keep clear of all moving parts.
Be carefulofheated surfaces and muffler.
The carburetor has been pre-set at the factory and
should not require adjustment. However, if your
engine does not operate properly due to suspected
carburetor problems, take your chipper-shredder to
your nearest SEARS service center.
4. ENGINE SPEED
The engine speed on your chipper-shredder has
been set at the factory. Do not attempt to increase
engine speed or it may result in personal injury. If you
believe the engine is running too fast or too slow, take
your chipper-shredder to the nearest SEARS service
center for repair and adjustment.
16
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