11
13.1) POSSIBLE FAULTS AND REPAIRS
FUNCTIONING
ANOMALIES
POSSIBLE CAUSES
REPAIRS
When turning switch into position
1 the warning lamp does not light
1) The plug or the wires are not
correctly connected.
2) The warning lamp is burnt
3)
1) Check right connection.
2) Replace the light.
When pressing start button the
machine does not start.
1) The protection grid is open
2) The bowl is not in the correct
position .
3) The safety microswitches are
damaged.
1) Turn it completely close again
and block it.
2) Check the position.
3) Replace the microswitches.
The machine stops and does not
start again
1) The termic probe has intervened
2) The inverter protection has
intervened
1) Wait some minutes for the
cooling of the machine
Continuous noise.
1) Check roller bearings.
1) Replace the bearings.
The tool does not do its normal
revolution on the tool shaft.
1) Belt released.
2) Belt worn out.
3) Etrainment pin broken
1) Tighten the belt
2) Replace the belt.
3) Replace the pin.
13.2) Extraordinary maintenance:
In case of operations not mentioned in this instruction manual
please call SIGMA SrL. To replace motor, electronic panel,
important mechanical parts such as planetary or gears or if the
machine falls down, please get in touch with our assistance
service.
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