User Manual

10 Repairs
DANGER!
Mains voltage!
– Before beginning with repair work, unplug the mains
plug and protect the device against being unintention-
ally switched back on.
–
Indicate repair work with warning signs.
– Repair work may only be performed by specialised per-
sonnel.
– Put safety equipment back into operation after mainte-
nance work.
Fault description Cause Remedy
The ready status indicator
doesn't light up
No mains connection Plug in mains plug
Main switch (8) Switch on main switch
START button is pressed but mill
does not start up
Check if POWER SUPPLY is lit see above
Pause time active Wait for end of pause or press "STOP"
Safety lock was opened manually
see
Ä Chapter 2.6.1 ‘Opening the hood
without mains connection’ on page 14
Mill reduces speed automati-
cally
if display is blinking: Overload Reduce load or accept automatically set rota-
tional speed
Mill stops running Switched off due to thermal
overload of the drive
Allow device to cool down and select a lower
speed
Imbalance of machine too high
Improve mass balance, see
Ä Chapter 6.6
‘Mass balance’ on page 34
Drive was blocked Rectify malfunction in grinding chamber
Toothed belt of motor loose or
broken
Check toothed belt, replace if necessary
The hood cannot be opened No mains connection Plug in mains plug
Main switch (8) Switch on main switch
Grinding stock escapes Clamping device loose clamp again
Seal ring is soiled or defective Clean or replace seal ring
Runs unevenly with strong
vibrations
Bowls are imbalanced Arrange the bowls symmetrically (equal
masses in the opposite positions)
Error code 5 blinks in the display Emergency off switch (5) pressed Unlatch the emergency off switch
Error code 6 Invalid program data Rotational speed or grinding duration must not
be set to zero.
Repairs
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