Struers Unitom-2, Instruction Manual

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Unitom-2
Instruction Manual
19
Error Explanation Action
The cut-off wheel wears down too
quickly.
The force on the cut-off-wheel is too
high.
Apply a lower force on the cut-off
wheel.
The cut-off wheel is too soft for the
task.
See Section Consumables, Cut-off
Wheels.
Unitom-2 vibrates (worn bearings). Call Struers service technician.
The cut-off wheel does not cut
through the workpiece.
Incorrect choice of cut-off wheel. See Section Consumables, Cut-off
Wheels.
Cut-off wheel worn. Replace the cut-off wheel.
Diameter of cut-off wheel too small. Change to a cut-off wheel with
another diameter, e.g. ø350 mm.
The cut-off wheel gets caught in the
workpiece.
Support the workpiece and clamp it
on both sides of the cut-off wheel in
such a way to allow the cut to stay
open.
The stop position is set too low. See Section Basic Operation,
Stopping the cutting.
The workpiece breaks when
clamped.
The workpiece is brittle. Place the workpiece between two
polystyrene plates.
NB! Always cut brittle workpieces
very carefully.
The sample is corroded. The sample is not resistant to water. Use a neutral liquid as cooling fluid
or cut without using cooling fluid at
all.
DO NOT USE AN
INFLAMMABLE LIQUID
(You may lift the pump carefully out
of the recirculation cooling unit).
The sample has been left in the
cutting chamber for too long.
Leave the protection guard open,
when you leave the machine.
Insufficient additive for cooling fluid. Add Struers Additive for cooling fluid
to the cooling water in the correct
concentration. Check with a
refractometer. See Section
Maintenance.