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