Struers Discotom-50, Instruction Manual

Page: 31 / 156

Discotom-50
Instruction Manual
27
Error Explanation Action
Cutting Problems
The hardness of the cut-off wheel is
inappropriate for the hardness /
dimensions of the workpiece. Reduce rotational speed or change
wheel. See Consumables section,
under heading ‘Cut-off Wheels’. Discoloration or burning of the
workpiece.
Inadequate cooling. Check that there is sufficient water
in the Recirculation Cooling Unit.
Cut-off wheel too hard. Reduce rotational speed 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.
Unwanted burrs.
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.
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 or change
wheel. See Consumables section,
‘Cut-off Wheels’.
Feed speed is set too high. Reduce the feed speed.
Cut-off wheel breaks.
Inadequate cooling. Check that there is enough water in
the cooling unit.