Struers Discotom-60, Instruction Manual

Page: 49 / 258

Discotom-60 /-65
Instruction Manual
45
Error Explanation Action
Cutting Problems
Discoloration or burning of the
workpiece. The hardness of the cut-off wheel is
inappropriate for the hardness /
dimensions of the workpiece. Reduce rotational speed (D-65 only)
or change wheel. See
“Consumables” section, under
heading ‘Cut-off Wheels’.
Inadequate cooling. Check that there is sufficient water
in the Recirculation Cooling Unit.
Unwanted burrs. Cut-off wheel too hard. Reduce rotational speed (D-65 only)
or change wheel. See
“Consumables” section, ‘Cut-off
Wheels’.
Feed speed too high at the end of
the operation. Reduce the feed speed near the
end of the operation.
Lack of support for the workpiece. If possible, support the workpiece
on both sides.
Cutting quality differs. Cooling water hose clogged. Clean the cooling water hose and
the cooling tube. Check the water
flow by turning the cooling valve to
cleaning position.
Cut-off wheel breaks. Incorrect mounting of the cut-off
wheel. Check that the bore/centre hole has
the correct diameter.
Check cardboard washer on both
sides of the cut-off wheels and
replace if worn. The nut must be
tightened properly.
Incorrect clamping of the workpiece. Make sure that only the left quick-
clamping device is tight.
The spring clamp to the right should
only press lightly.
Use the vertical clamping system if
the workpiece is an irregular shape.
Cut-off wheel is too hard. Reduce rotational speed (D-65 only)
or change wheel. See
“Consumables” section, ‘Cut-off
Wheels’.
Feed speed is set too high. Reduce the feed speed.
Inadequate cooling. Check that there is enough water in
the cooling unit.