HTC 420 VS - The Machine Stops Immediately after Starting; The Fuses Trip Frequently; The Machine Cannot Cope

Troubleshooting
HTC 420 VS
24 2.0
• Check that there is movement between the chassis and
grinding head. If necessary, loosen one of the two pins
(310374 on page 29) in order to increase the movement
between the chassis and grinding head.
6.1.4. 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 on page 25.
6.1.5. The fuses trip frequently
• The load is too high on the distribution box to which the
machine is connected. Replace the 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.
6.1.6. 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 cleaned 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.
Tip!
Check the minimum recommended cable area before using an
extension cord. You will find the recommended cable area under
Technical data on page 38.