Metrohm 807 Dosing Unit - Manual (Page 33)

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3 Installation
807 Dosing Unit
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Two wire loops will appear at the tip of the piston tongs.
2 Arrange the piston tongs in such a way that the wire loops surround
the piston stopper.
3 Carefully let go of the grip.
The wire loops will snap shut.
4 Carefully pull out the dosing piston with the white grip, applying a
certain amount of force while doing so.
5 Release the piston tongs by pressing on the white grip.
Figure 18 Dosing cylinder with dosing piston
Now the dosing cylinder and the piston can be cleaned separately (see
Chapter 4.1, page 31).
CAUTION
Never disconnect the dosing cylinder from the cylinder base. There is a
danger of the sensitive material in the cylinder base (particularly the
edges) becoming damaged when the cylinder is attached by hand.