Virax 162120, Instruction Manual, Page: 46 / 60

44
Diagnostics and fault fixes
Important: If you encounter problems not on this list, contact Virax or their representative for the
problem to be dealt with by After-Sales service.
Machine operating problems
Problem Possible causes Corrective actions
The motor does not
operate when the start
button is pressed.
The power socket is not
connected to the electrical
power supply.
Connect the socket to the
electrical power supply.
The power supply voltage is too
low.
Check the voltage delivered by
the electrical power supply.
(The voltage must not be less
than 150 V).
The motor brushes are worn.
Replace the brushes by new
ones (see page 35).
The start button is not working.
Replace the button. (Warning:
do not short circuit the start
button; see page 8, “Attention”,
concerning the machine being
restarted after an unexpected
stop).
The motor is burnt out.
Contact Virax or their
representative to change the
motor.
The machine shaft is not
driven by the motor.
The transmission is broken.
Contact Virax or their
representative to change the
transmission.
The shaft rotation is slow
or irregular.
The power supply voltage is too
low.
Check the supply voltage. (It
must not be less than 150 V).
The transmission is defective.
Contact Virax or their
representative to change the
transmission.
There is forward and
backward play in the
motor spindle.
The rear chuck retaining collar
is not sufficiently tight.
Tighten up the main shaft blind
collar. (See page 36).
EN