72
17. MAINTENANCE
DANGER!
Before performing any adjustment or maintenance task
and before changing the blade you must switch off the
machine, disconnect it from the power supply and wait
for the saw blade to stop.
General regulations
In case you find out any damage to the protection devi-
ces or irregularities while processing or checking the
machine, you must get it repaired immediately by qua-
lified persons.
Before use check that the protection and safety devices
are perfectly efficient. After carrying out the work,
make a general cleaning of the machine by removing
dust and chips.
Do not use any thinner to clean plastic pieces. Most of
the kinds of plastic risk to get damaged by commer-
cially available thinners. Use a clean cloth to remove
impurities, dust, etc.
Extract periodically sawdust that can pile up inside
the machine by opening the two doors. Clean also the
ventilation inlets of the engine.
Be sure that the protective cap can slide freely.
Periodically check the tensioning and the conditions
of the belt.
Periodically check the conditions of the flywheels’
coatings.
Periodically check bench inlay’s conditions.
Replacement of the flywheels’ coatings (Fig.17)
Regularly check the flywheels’ coatings and if neces-
sary change both of them:
• Remove the saw blade (see previous paragraphs);
• Let a small screwdriver slide under the coatings and
remove them;
• Place the new plastic coatings and re-assemble the
saw blade.
Fig. 17
Replacement of the bench inlay
The bench inlay must be changed when the hole for the
passage of the blade is damaged.
• Remove the bench inlay (80) from the workbench
by pushing from below.
• Insert a new bench inlay.
18. MALFUNCTIONS
DANGER!
Before performing any tasks after a failure:
• Switch off the machine.
• Remove the plug from the socket.
• Wait for the saw blade to stop.
After any intervention, replace all safety devices and
check them.
The engine does not work
A possible tension reduction has made the minimum
voltage relay start.
• Re-start the machine.
There is not any supply voltage:
• Check the cable, the socket and the switch.
Saw blade moves away the cutting line or
decentralizes itself
The saw blade is not centred on the driving wheel:
• Modify the upper flywheel inclination (see par.
“Adjustment knob”).
The saw blade has broken
Saw blade tension is unsuitable:
• Adjust saw blade’s tension (see par. “Saw blade ten
-
sion”).
The forcing is too high:
• Reduce the pressure exerting against the saw blade.
The saw blade is inadequate:
• Change the saw blade (see par. “Replacement of the
blade”):
If you must cut a thin workpiece, you must use a thin
saw blade.
If you must cut a wide workpiece, you must use a
wide saw blade.
The saw blade is misshapen
The forcing is too high:
• Do not force sideways on the saw blade.
The saw blade stops
The forcing is too high:
• Reduce the pressure you are exerting on the work
-
piece.
• Check the sharpness and the kind of blade.