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HTC 270 EG
6.3
The machine vibrates or wears the tool unevenly
•
Check the grinding head is correctly adjusted, see Adjustment of grinding head,
page 24.
•
Check the grinding holder. Recondition or replace the grinding holder as
required.
•
Check the tool holder. Recondition or replace the tool holder as required.
6.4
The machine is grinding at an angle
•
Check the grinding head is correctly adjusted, see Adjustment of grinding head,
page 24.
•
Recondition the grinding holder. See under The machine vibrates or wears the
tool unevenly, page 34.
6.5
The machine stops immediately after starting
•
The overload indicator lights up because the speed of the grinding discs is too
high. Reduce the speed and try again.
•
Check the error code in the display on the frequency converter, see Electronic
error codes, page 36.
6.6
The fuses trip frequently
•
The load is too high on the distribution box to which the machine is connected.
Use a different socket or reduce the speed of the machine.
•
Check the tools. Ensure that the correct tools are used, that they are in working
order and that they are correctly fitted.
6.7
The machine cannot cope
•
Heavy load. Press the handle down slightly so that the grinding head eases
slightly away from the surface being ground.
•
Sticky coating on the surface being ground. Run half of the machine on the
surface to be processed and half on the clean surface. This removes any residue
from the tools.
•
Check the tools. Ensure that the correct tools are used, that they are in working
order and that they are correctly fitted.
•
Voltage drop. Check that the cable area meets HTC's recommendations. You will
find the recommended cable area under Technical data, page 40.
Tip!
Check the minimum recommended cable area before using an extension cord.
You will find the recommended cable area under Technical data, page 40.
2.0
Faultfinding
35
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