Lagler HUMMEL, Operation Maintenance Safety

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TROUBLESHOOTING
MACHINE FAILS TO START UP
The machine fails to start up
• Check the power supply, connect if applicable. Check the
fuses.
• Have the electrical equipment tested by a qualified electrician
(capacitors, contactor, cable and switches)
• The thermal switch has tripped. Allow the machine to cool
down.
The machine attempts to start up but is inhibited
• At low temperatures: Allow the machine to warm up to room
temperature in a warm room.
• Insufficient voltage: Check the conductor quality and length.
Insufficiently dimensioned cable cross-sections (strand dia.
smaller than 2.5 sq.mm) and excessively long supply lines
should be avoided, if necessary use a transformer (e.g. Art.
no. 708.00.00 for 230 Volts).
• Check the tension of the V-belts and correct if necessary.
POOR MACHINE RUNNING CHARACTERISTICS
The machine is running but with no or insufficient sanding
output
• At low temperatures: Allow the machine to warm up to room
temperature in a warm room.
• Insufficient voltage: Check the conductor quality and length.
Insufficiently dimensioned cable cross-sections (strand dia.
smaller than 2.5 sq.mm) and excessively long supply lines
should be avoided, if necessary use a transformer (e.g. Art.
no. 708.00.00 for 230 Volts).
• Check the tension of the V-belts and correct if necessary.
• Check that the drive elements are not blocking or sticking.
• Incorrect or blunt abrasive.
The machining is creating excessive noise and vibrations
• Check the sanding drum and tensioning roller for dirt depos-
its.
• Check the belt tracking and adjust if necessary.
• Check the sanding belt for damage.
• Check the belt drive.
• Check the machine for blockages and deposits.
Troubleshooting
7
This section indicates how possible errors
can be remedied. Should the actions outlined
here fail to bring about a solution to the
problem, please do not hesitate to contact
Customer Services Department, which will
be pleased to advise you. Our fully trained
and qualified service technicians are highly
familiar with the HUMMEL and will be able to
provide any assistance you may need.
The circuit diagram applicable for your ma-
chine is located in the motor switch box.