FRITSCH PULVERISETTE 5/4 classic line - Manual (Page 28)

6 Using the device
DANGER!
Before starting the machine, make sure that the grinding
bowl has been tensioned correctly and that there are no
loose parts inside the device. There is a risk of loose
grinding bowls or parts being projected. Failure to observe
this will render void the guarantee, and releases us from
liability for any resulting damage to the device or personal
injury.
CAUTION!
The grinding element is subject to normal wear when used.
Before every grinding operation, check the wall thickness of
the grinding bowls. In the event of severe wear, replace the
grinding bowl. If this is not done, the prevailing high centri-
fugal forces during grinding may cause the grinding balls to
penetrate the bowl's wall and damage the mill. Failure to
observe this will void the guarantee and release us from lia-
bility for any resulting damage to the device or personal
injury.
NOTICE!
During grinding, the temperatures in the grinding bowl may
get very high.
In encased grinding bowls, the inserts are glued into the
casing with a two-component construction adhesive.
The adhesive is resistant to temperatures up to approx. 140
°C. Above 140 °C, the adhesive will liquefy and accumulate
below the insert in the casing. When the adhesive cools
down, it solidifies and pushes the casing up. That can cause
irreparable damage to the insert. The grinding bowl will
definitely be rendered unusable.
Above temperatures of 200 °C, the adhesive will be
destroyed. The same applies for encased grinding bowl lids.
V‐belt, seals, and motor require some time at the beginning
before they can reach the optimal output and/or rotation.
This means that initially a well‐filled and heavy grinding set
may be able to operate with less rotations than after an
introductory phase of approx. 1 ‐ 2 hours running time.
Using the device
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