3 installing the grinding elements, Using the device – FRITSCH PULVERISETTE 14 User Manual

Page 27

6.3 Installing the grinding elements

The grinding elements are to be installed in the PULVERISETTE 14 as

described in the following:
1.

Set the labyrinth disk (5) on the motor mounting flange (3) and

press it firmly downwards until it lies flush on the motor mounting

flange (3). It is clamped and centred by an O-ring.

Set the collecting vessel (8) onto the labyrinth disk (5). Make sure

that the O-rings (6) and (7) are seated correctly in the corre-

sponding grooves of the labyrinth disk (5).

Place the rotor (10) on the motor shaft (4) (). The cut grooves on

the bottom end of the rotor shaft have to point in the direction of

the flattened sides of the motor shaft. The rotor is guided by a cyl-

inder pin.

CAUTION!
Do not force on the rotor (10) when placing it on the

motor shaft (4).
It should easily glide onto the motor shaft (4) and

after being placed on the shaft, it should easily be

turned by the cylinder pin to the left and right up to

the stops (apply some oil, if necessary).

Slide the sieve ring (11) over the rotor (10) () and place it on the O-

ring (7) of the labyrinth disk. If a sieve ring is not used, use the

spacer ring with order no. 44.1110.10 as a sieve ring substitute.

Seal closed the collecting vessel (8) using the lid (15) and lid seal

(14). The centring shoulder in the centre of the lid has to be cen-

tred on the sieve ring (11).

Close the housing cover (9) and lock it in place with the latch (1).

Locking it into place will require a certain amount of force. By

closing the PULVERISETTE 14, the grinding elements are locked

into place.

The resistance when closing the latch (1) determines

the pressure that holds the sieve ring (11). If the latch

(1) cannot be closed, the centring disk in the lid of the

collecting vessel (15) is not seated centrically on the

sieve ring (11). This can be corrected by shifting the

lid (15).

If the source material is smaller than 8 mm, the supplied inner

funnel (13) with an inner diameter of 13 mm can be inserted. This

will significantly reduce the air noise.
Other inner funnels with 10 mm (order no. 14.2470.10) and 20

mm (order no. 14.2490.10) diameters are also available as acces-

sories. The smaller the inner diameter, the lower the noise emis-

sion when milling.

Using the device

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