Operating instructions

27
Possible faults
Before each fault clearance
− switch off device
− wait for stop of chain saw
− pull out main plug
 After each fault clearance, put into operation and recheck all security installations.
Fault Possible cause Removal
Machine fails to start after
switching on or switches off
during idle running
• Power failure
• Extension cable defect
• Motor or switch defect
• Saw blade sticks
• Replace fuse
• Check cable, no longer use defect cable
• Have motor or switch checked by an
approved electrician or replaced by original
spare parts
• Remove the cause of the jam.
Machine stops while cutting
• Saw blade blunt
• Feed is too great
• Motor protecting switch has tripped
• Replace saw blade
• Allow motor to cool and proceed working
with less pressure
• Switch motor back on after cooling ("Motor
protection", page 23)
Workpiece sticks when feeding
• Saw blade is dull
• The longitudinal or parallel stop is not
parallel to the saw blade
• Hold the workpiece firmly and switch the
motor off immediately. The have the saw
blade sharpened or renew
• Readjust the scale, see p. 24
Burned spots at the cut areas
• Saw blade is not suitable for the work step or
is dull
• Replace saw blade or have it sharpened
Chip outlet is clogged
• No exhaust system connected
• Exhaust power too weak
• Switch off saw, remove chips and connect
exhaust system
• Switch off saw, remove chips and increase
exhaust power (air velocity 20 m/sec at chip
exhaust neck).
Motor running, saw blade will not
turn.
• V-belt too loose or defect • Contact an authorised customer service
workshop
Saw vibrates
• Saw blade is warped
• Saw blade not properly mounted
• Replace saw blade
• Mount saw blade properly