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7
Anomalies
7.1
Anomalies in the circular metal saw
ANORMALTY
Saw motor overloaded
Engine is not running
Short life of saw belt
(Teeth blunt)
Breaking of teeth
Twisted cut (saw belt devi-
ating)
Saw excessively jerks or
breaks
Cut not rectangular, but
parallel
Cooling does not work
CAUSE/
POSSIBLE EFFECTS
•
Suction of motor cooling air hin-
dered
•
Motor not correctly fixed
•
Power unit for saw belt not cor-
rectly fixed
•
Engine connected incorrectly
•
Relay or engine defective
•
Step switch is switched to position
0/ OFF
•
Thermal protection of the engine is
defective
•
Quality of saw belt not suitable for
this material
•
An incorrect toothing causes
breakage of teeth (the broken
tooth in the workpiece blunts the
other teeth)
•
Missing cooling
•
Cutting speed too high
•
Chip space in the saw belt full,
toothing incorrect
•
Saw belt blunt
•
Cutting pressure too high
•
Saw belt defective (irregular set)
•
Cutting speeds too high
•
Teeth too blunt or too small gaps
between the teeth
•
Saw jerks as chips remain in the
gaps of the saw blade
•
The saw is installed reverse to the
turning direction
•
Material not resting on both vice
rails
•
Vice jaws not adjusted to 90°
•
The valve on the sawing hood is
closed
•
The pump is not connected
•
Pump defective
•
Coolant tank empty
•
Suction tube of the coolant pump
is blocked
•
Wrong turning direction of the
pump
SOLUTION
•
Check and clean
•
Requires technical service! Have
the machine repaired in the work-
shop
•
Request help of electrical special-
ists
•
Saw belt with higher quality
•
Select correct toothing
•
Use coolant system
•
Reduce cutting speed
•
Use saw belt with different tooth-
ing or reduce feed
•
Replace
•
Reduce
•
Replace
•
Have saw grinded and the gaps
between the teeth polished
•
Turn round the saw and check the
teeth
•
Support material properly
•
Correctly adjust the circular metal
saw
Anomalies
Page 43
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