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7 Anomalies
7.1 Anomalies in the circular metal saw
ANORMALTY
CAUSE
/
POSSIBLE EFFECTS
SOLUTIO
N
Saw motor overloaded
• Suction of motor cooling air hin-
dere
d
• Motor not correctly fixed
• Power unit for saw belt not cor-
rectly fixed
• Check and clean
• Requires technical service! Have
the machine repaired in the work-
sho
p
Engine is not running
• Engine connected incorrectly
• Relay or engine defective
• Step switch is switched to position
0/ OFF
• Thermal protection of the engine is
defective
• Request help of electrical special-
ists
Short life of saw belt
(Teeth blunt)
• Quality of saw belt not suitable for
this material
• An incorrect toothing causes
brea
kage of teeth (the broken
tooth in the workpiece blunts the
other teeth)
• Missing cooling
• Cutting speed too high
• Saw belt with higher quality
• Select correct toothing
• Use coolant system
• Reduce cutting speed
Breaking of teeth
• Chip space in the saw belt full,
toothing incorrect
• Use saw belt with different tooth-
ing or reduce feed
Twisted cut (saw belt devi-
ating
)
• Saw belt blunt
• Cutting pressure too high
• Saw belt defective (irregular set)
• Replace
• Reduce
• Replace
Saw excessively jerks or
breaks
• Cutting speeds too high
• Teeth too blunt or too small gaps
be
tween the teeth
• Saw jerks as chips remain in the
ga
ps of the saw blade
• The saw is installed reverse to the
turning direction
• Have saw grinded and the gaps
between the teeth polished
• Turn round the saw and check the
tee
th
Cut not rectangular, but
parallel
• Material not resting on both vice
rail
s
• Vice jaws not adjusted to 90°
• Support material properly
• Correctly adjust the circular metal
saw
Cooling does not work
• The valve on the sawing hood is
close
d
• The pump is not connected
• Pump defective
• Coolant tank empty
• Suction tube of the coolant pump
is blocked
• Wrong turning direction of the
pum
p
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