Retsch SR 300 - Cleaning the Feed Hopper; Wear

Cleaning, Wear and Maintenance
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10.1.2 Cleaning the Feed Hopper
Fig. 31: Cleaning the feed hopper
 Unscrew the two M4 oval-head screws (G1).
 Remove the splashback protection (G).
 Loosen the three M6 hexagon socket head screws (F1).
 Pull the feed hopper (F) slightly upwards, then remove it to the front.
 Clean the component parts with alcohol, petrol or normal household detergent. The feed
hopper (F) is also dishwasher suitable.
 Check the sealing gasket (TD) on the door for its intactness and cleanliness before
reinstalling the feed hopper (F) and the splashback protection (G) after cleaning.
WARNING
W6.0011
Serious personal injury
Intervention in rotating rotor
 Unintentional intervention in the grinding chamber and the rotating rotor
can cause serious hand injuries.
 Never operate the device without mounted splashback protection,
or, if removable, without mounted feed hopper.
10.2 Wear
The grinding tools may become worn, depending on the frequency of the grinding operation and
the sample material. The rotor and the grinding sets should be regularly checked for wear and
replaced if necessary.
F1
TD
G
F
G1