FRITSCH PULVERISETTE 6 classic line - Manual (Page 53)

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.
10.1 Checklist for troubleshooting
Fault description Cause Remedy
Mill does not start up No mains connection Plug in mains plug.
Main switch (10) at 0 (OFF) Switch on main switch.
Device fuse Check device fuse; fuse insert on the back side
of device 2 x 10 A T (12).
"START" button is pressed but
mill does not start up
Check if POWER SUPPLY is lit See Ä Chapter 4 ‘Installation’ on page 20.
Pause time active Wait for end of pause or press "STOP".
Safety lock (7) was opened man-
ually
See Ä Chapter 2.6.1 ‘Opening the hood without
mains connection’ on page 14.
Mill reduces speed automati-
cally
If REDUCED SPEED is lit: Over-
load
Reduce load or accept automatically set 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 36).
Drive was blocked Rectify malfunction in grinding chamber.
Motor's V-belt loose or ripped Check V-belt, replace if necessary.
Speed sensor is defective Contact customer service.
The hood cannot be opened The button (1) on the front of
the hood was not actuated when
opening.
Actuate button when opening.
Repairs
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