PK0101
PG 8
II. OPERATION - TROUBLESHOOTING/MAINTENANCE
SEGMENT CRACKS
UNEVEN SEGMENT WEAR
t
t
t
(In wet cutting) Insufficient water
(usually on one side of blade).
Equipment defects also can cause
the segments to
wea
r unevenly.
Saw head is misaligned
REMEDY
t
Flush water system.
t
Check flow to both sides of blade.
t
Replace bad bearings, worn arbor
shaft or misalignment to spindle.
t
Check alignment for squareness both
vertically and horizontally, of the saw
blade.
CAUSE
PROBLEM
t
Blade is too hard for material being cut.
t
Use a blade with a softer bond/matrix.
SEGMENT LOSS
t
Blade overheats because of lack of
coolant (water or air).
t
Core is worn from undercutting.
t
Defective collars/flanges set blade out
of alignment.
t
Blade is too hard for material being cut.
t
Blade is cutting out of round causing a
pounding motion.
t
Improper blade tension.
t
(Wet Cutting) Check water lines.
t
Make sure flow is adequate on both
sides of blade and there are
blockages.
t
Use sufficient water to flush out the
cut.
t
Clean collars/flanges or replace if they
are under recommended diameter.
t
Use proper blade specification for
material being cut.
t
Replace worn bearings; realign blade
shaft or replace worn blade mounting
arbor. When ordering blades match
shaft speed of saw.
t
Check spindle speed to ensure blade
is running at correct RPM
t
Avoid twisting or turning blade in the
cut.
CRACKS IN CORE
t
Blade flutters in cut as a result of losing
blade tension.
t
Blade specification is too hard for the
material being cut.
t
Tighten the blade shaft nut.
t
Make sure blade is running at proper
speed and that drive pin is functioning
properly.
t
Use a softer bond/matrix to eliminate
stress
