9
Securing extension arm to the overhead stirrer
Diagram
(see Fig. 4)
Ensure that the extension arm is fitted securely.
Vibration may cause the screw to become loose. It is there-
fore necessary for safe use to occasionally check that the
extension arm is attached securely. Tighten the hexagon
socket screw as required.
Securing the stirrer to the stand
Diagram
(see Fig. 5)
Attach the cross sleeve (H) to the upright of the stand (I).
Attach the extension arm (J) to the side of the cross sleeve
not in use, with the opening facing upwards.
Tighten both clamping bolts (G) firmly once the desired po-
sition for the stirring procedure has been adjusted correctly.
Check that the stirrer is held in position firmly prior to each
use and also at regular intervals. The position of the stirrer
must only be adjusted when the equipment is stationary
and the power supply is disconnected.
Securing a stirring element using the chuck
Diagram
(see Fig. 6)
Slide the stirring tool (M) into the chuck (L). Tighten the
chuck firmly using the chuck key (K).
The stirring tool must only be changed when the equipment
is stationary and the power supply is disconnected.
Securing
Securing the stirring shaft protector
Diagram
(see Fig. 7)
Use a stirring shaft protector (Q), e.g.
R 301
, to provide
protection against injury when working with the equip-
ment. Use the bolts (U) to attach the plastic half-shell pieces
to the stirrer (T), as shown in
Fig. 7
. The screw (S) can be
used to adjust the length of the stirring shaft protector.
Check that the stirring shaft protector is held in position
securely prior to each use and also at regular intervals. The
position of the stirring shaft protector must only be adjust-
ed when the equipment is stationary and the power supply
is disconnected.
Securing the mixing vessel to the stand
Diagram
(see Fig. 8)
First fix the cross sleeve (H) to the stand (I).
Then attach the bracket (Z) of the strap clamp in the open
side of the cross sleeve which is facing upwards according
to the position of stirrer and the mixing vessel (V), firmly
tighten the two clamping bolts (G).
Clamp the mixing vessel (V) with the flexible clamping
band (W) and secure the flexible band (W) by means of the
clamping lever (X).
Check whether the voltage given on the type plate corre-
sponds to the available mains voltage.
The socket used must be earthed (fit-
ted with earth contact).
If these conditions have been met, the machine is ready to
operate when the mains plug is plugged in.
If these conditions are not met, safe operation is not guar-
anteed and the machine could be damaged.
During commissioning of the machine the output shaft
starts to run at the last speed set. Therefore check the set-
ting of the control knob (B). Also ensure that the speed set
is suitable for the test medium selected.
Switching on the device
If in doubt, set the speed knob to the lowest speed. In case
of doubt use the rotary knob (B, see
Fig. 1
) to set the lowest
speed and set the drive at the lowest speed position (back
side, refer to the attachment on side of overhead stirrer).
The unit starts to run when the rocker switch (A, see
Fig. 1
)
is switched to
I
position.
If the unit has not been used for some time, a knocking
noise will be heard when switching on, which is due to the
preload on the friction lining of the friction wheel drive. This
has no detrimental effect on the function of the unit, and
the knocking noise will disappear after a short running-in
period.
