Retsch DM 400 - Manual (Page 39)

Cleaning
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6 Cleaning
DANGER!
Mains voltage!
- Before starting cleaning work, unplug the device and
protect it from restarting accidentally!
- Do not let liquid run into the device.
- Indicate cleaning work using a warning sign.
- Put safety equipment back into operation after
cleaning work.
NOTICE!
The grinding disc support and the housing are made
from ductile cast iron. This cast steel is not rustproof. If
you grind slightly damp sample material, after grinding
you must dry the back of the grinding disc, the inside of
the grinding disc support and all parts of the housing
which come into contact with the sample. If you do not
do so, corrosion can be expected to occur.
6.1 Extracting dust after grinding
After completion of the grinding process, you can vacuum the dust
created during grinding.
NOTICE!
Do not switch on the dust extraction during grinding as
sample material may otherwise also be extracted.
6.2 Grinding chamber
To clean the grinding chamber, open the chamber. Clean the cham-
ber using a brush and vacuum cleaner. Where necessary you can
also use liquid detergents (alcohol, benzene). However pay attention
to any rust if you use aqueous liquids.
It is important to allow the disc mill to dry completely.