25
Possible faults
Before each fault clearance
−
Switch off device
−
Wait for stop of saw
−
Pull out power 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
•
Doors not locked
•
Check safety fuse
•
Check cable, no longer use defect cable
•
Have motor or switch checked by an
approved electrician or replaced by original
spare parts
•
Close and lock the doors
Motor hums, but does not initiate
•
Condenser defect
•
Condenser should be replaced by customer
service
Machine stops while cutting
•
Saw band edgeless
•
Feed too large
•
Replace saw band
•
Allow the motor to cool off and then continue
work using less pressure
Work piece jams when pushing
forward or pulling backward
•
Saw band edgeless
•
The parallel stopper is not parallel to the saw
band
•
Hold the work piece firmly and switch off the
motor immediately. Then renew the saw
band.
•
Readjust the parallel stopper.
Burn marks at the cut edges
•
Saw band is not suitable for the work step or
edgeless
•
Replace saw band
Saw band breaks
•
Wrong saw stressing
•
To high load
•
Wrong saw band
•
Adjust saw band stress
•
Reduce pressure against the saw band.
•
Wrong saw band
°
thin work piece = small saw band
°
thick work piece = broad saw band
Saw band contorted
•
To high lateral load
•
Avoid lateral pressure on the saw band.
Saw band runs out of cutting line
or passes of
•
Saw band does not run centrally on the upper
band saw roll
•
Adjust incline of the upper band saw roll
Saw vibrates
•
Insufficient fixation
•
Saw table loose
•
Fixation screws of motor lose
•
Fix saw on suitable ground
•
Adjust and fix saw table
•
Fasten fixation screws
Sawdust exit blocked
•
No extraction system connected
•
Extraction power to weak
•
Switch off saw, remove sawdust and connect
extraction system
•
Switch off saw, remove sawdust and
increase extraction power (air speeds
≥
20
m/sec on suction socket of sawdust.
Saw band does not move
although motor is running
•
Drive belt lose
•
Drive belt defect
•
Clamp drive belt
•
Replace drive belt
