III MAINTAINENACE - TROUBLESHOOTING
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BLADE WOBBLES
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Blade is on a damaged or
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Check for bad bearings, bent shaft,
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Worn collar.
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Check collars/flanges to make sure
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Blade runs at an incorrect speed.
they are clean , flat and of correct
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Collar/flange diameters are not
diameter.
identical.
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Set engine at proper RPM.
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Blade is bent as a result of
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Use proper size blade
dropping or twisting.
collars/flanges.
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DO NOT use bent blade.
Contact blade manufacturer.
BLADE WILL NOT CUT
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Blade is too hard for material
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Select proper blade for material
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Blade has become dull.
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Sharpen by cutting on softer
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Blade does not cut material
abrasive material to expose
it was specified for.
diamonds. If continually
sharpening, the blade is too hard
for the material being cut.
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Break-in on the material to be cut.
If it does not dress itself, sharpen
as you would a dull blade.
UNDERCUTTING THE CORE
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Abrasive wearing of the core
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Use water to flush out fines
faster than the segments.
generated during cutting
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Use wear-restardant cores.
ARBOR HOLE OUT-OF-
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Collars/flanges are not properly
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Make certain the blade is mounted
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rotate or vibrate on the shaft.
the shaft nut with a wrench to make
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Collars/flanges are worn or dirty.
certain that the blade is secure.
Blade is not properly mounted.
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Clean collars/flanges, make sure
they are not worn.
Tighten arbor nut.
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Make sure the pin hole slides over
drive pin.
BLADE WORN OUT OF
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Shaft bearings are worn.
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Install new blade shaft bearings or
ROUND
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Surges occur because engine
blade shaft, as required.
is not properly tuned.
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Tune engine according to
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Blade arbor hole is damaged
manufacturer's manual.
from incorrectly mounting
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If core is worn or arbor hole damaged,
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Bond/matrix is too hard for
manufacturer.
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material.
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Replace worn shaft or mounting
Blade si slipping, wearing one
arbor bushing.
half of blade more than other.
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Make certain that drive pin is
functioning.
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Tighten spindle nut.
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