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Error
Machine Problems
Chamber light does not work.
Water leaking.
Samples or cutting chamber rusty.
Protection guard window blurred.
The protection guard will not open.
Quick-clamping device unable to
hold the workpiece.
Cutting Problems
Discoloration or burning of the
sample.
Unwanted burrs.
32
Unitom-50
Instruction Manual
Explanation
Fuse F2 or the bulb may have
blown.
Leak in a hose of Recirculation
Cooling Unit.
Water overflow in the cooling water
tank.
Insufficient additive for cooling fluid.
The machine is left with closed
protection guard.
Insufficient cleaning.
The safety lock has stuck.
The quick-clamping device is not in
balance.
Clamping heart worn.
The hardness of the cut-off wheel is
inappropriate for the hardness /
dimensions of the sample.
Inadequate cooling.
Feed speed too high.
Wheel too hard.
Lack of support.
Action
Replace fuse F2 or the bulb
(NB 230V). The F2 fuse is placed
behind the back plate.
Check the hose and tighten the
hose clamp.
Remove the excess water in the
tank.
Add Struers Additive for cooling fluid
to the cooling water, using the
correct concentration. Check with a
refractometer. Follow the
instructions in the Maintenance
Section.
Leave the protection guard open to
let the cutting chamber dry.
Clean with mild soapy water (do not
use the cleaning hose).
Open the lock with a thin flat screw
driver. Clean and lubricate the lock.
Follow the Weekly service
instructions in the Maintenance
Section to avoid the situation.
Adjust the screw underneath the
clamping column. Use a 3 mm Allen
key.
Call Struers service technician.
See Consumables Section, Cut-off
Wheels.
-Check that there is enough water in
the recirculation cooling unit.
-Check the cooling water hoses.
Reduce the Feed Speed.
See Consumables Section, Cut-off
Wheels.
Further support of the workpiece.
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