Metrohm 700 Dosino - Manual (Page 22)

2. Setup
700 Dosino, Instructions for Use
16
2.3.3 Centering tube and ETFE cylinder
In a dosing unit with an ETFE cylinder the centering tube consists
of two plastic parts. The dosing cylinder is integrated in the lower
plastic part.
• Open the housing as described in section 2.3.1.
• Lift off the centering tube in one piece (i.e. both plastic parts)
from the distributor.
• The upper plastic part can simply be pulled off
upwards.
You can now see the plastic cylinder with the
dosing piston.
• The dosing piston can be re-
moved with the piston pliers in
the same way as for a glass
cylinder, see section 2.3.2.
Leave the black stopcock washer
in the cylinder base.