Page 202 - oxcatalog-2019

Diamond Blade Troubleshooting Guide

SEGMENT LOSS CAUSES REMEDIES

1. On masonry saws, the material is not 1. Hold the material firmly against the
held firmly, which causes the blade backstop.
to twist or jam in the cut and loosen
the segment.
2. Provide adequate water flow to
both sides of the blade. Look for
2. Overheating is due to inadequate
supply of water or complete loss of line blockages. On concrete saws,
water. This is usually accompanied temporary complete loss of water can
by discolorations which appear on the result from equipment running over
steel center near the area of segment the water feed hoses.
loss.
3. Use sufficient water to flush fines
3. Steel center is worn thin as a result out of the cut. If generated fines are
of undercutting by abrasive fines highly abrasive, blades with undercut
generated during cutting. The steel protection.
center (blank) wears to a knife edge,
weakens and causes a segment to 4. Clean foreign material from the
be separated. blade clamping disc surfaces, ore
replace clamping discs if they are
4. Defective blade collars cause the under manufacturer’s recommended
blade to flutter in the cut or fail to diameter.
adequately support the blade in
perfect alignment. 5. Use the proper blade specifications
for the material being cut.
5. Blade is too hard for material being
cut, causing excessive dullness and 6. Replace worn bearing, realign blade
segment separation due to impact shaft, or replace worn spindle.
or fatigue. This can also cause
frictional heat that can melt the braze
when insufficient water is supplied to 7. Make sure the running speed of
the blade. equipment is specified when ordering
blades. On concrete saws, the
6. Blade is cutting out of round resulting spindle speed should be checked
in a pounding impact. with a tachometer to ensure that
each diameter blade is running at
7. Improper blade tension causes the recommended cutting speed and
high pressure on the segments and blade-tensioned speed.
DISTORTED subsequent failure of the brazed joint.
CENTER STEEL

1. Inadequate tightening of the blade 1. Tighten clamping nut securely.
on concrete saw mounting shaft.
This causes drive pin to force its
way through blade blank.
2. Avoid dropping the blade.
2. Dropping saw head with mounted Protect blade from abuse
blade particularly on concrete and handle with care.
saws. Also dropping objects on
unmounted blade distorts blade
blanks.

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