Palmgren CS 250, Operating Manual

Page: 44 / 49

Anomalies
Page 43
7 Anomalies
7.1 Anomalies in the circular metal saw
ANORMALTY
CAUSE/
POSSIBLE EFFECTS
SOLUTION
Saw motor overloaded • Suction of motor cooling air hin-
dered
• 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-
shop
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
breakage 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
between the teeth
• Saw jerks as chips remain in the
gaps 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
teeth
Cut not rectangular, but
parallel • Material not resting on both vice
rails
• 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
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