Retsch RM 200 - Manual (Page 19)

11/6/2012 19  Retsch GmbH 0002
Adjusting the Scraper to the Mortar
When the machine is delivered or when a scraper is
re-ordered, it may be necessary to regrind scraper A.
This depends on the shape of the mortar M or the
wear on it.
Fig.7.1
Regrinding is necessary in the following cases:
• when the machine is supplied without a mortar or
grinding set
• when a scraper or mortar is reordered
The scraper was chamfered slightly in the factory in
order to make regrinding easier. The grinding angle
should be 45° and depend on the shape of the
mortar.
Fig.7.1 und Fig.7.2
You can use a belt sander, a grindstone or sandpaper
to do the grinding.
The scraper can become sharp-edged as a result of
sanding and wear during grinding operations. During
cleaning in particular there is a risk of injury.
Installing / replacing the scraper
Fig.8
• Open the cover M.
• Flip the cover to the back.
• Loosen the screw Y with the supplied screwdriver.
• Remove the retaining screw Y.
• Swing out the mounting bracket.
• Remove the scraper.
• Insert the new scraper.
• Hook the mounting bracket Z again.
• Turn the screw Y loose.
• The scraper can be adjusted by its slot slightly
forward or backward.
• Slide the scraper backwards.
• Tighten the screw. Fig.9
• Close the cover.
• Check visually or by sample material if the scraper
is applied accurate on the mortar.
M A
delivery condition ground
A
Fig.7.1
Fig.7.2
Y
Z
X