Metrohm 700 Dosino - Manual (Page 24)

2. Setup
700 Dosino, Instructions for Use
18
• You can now attach the centering tube.
The narrow and the wider web on the lower
surface of the centering tube must fit into the
corresponding recesses of the black cylinder
base.
The head of the piston push rod must fit into the
opening on the top of the centering tube.
• Press the centering tube firmly onto the cylinder
base.
• The centering tube with cylinder and cylinder
base is now attached to the distributor.
The centering tube must be correctly positioned
in order to assemble the housing.
• Rotate the centering tube on the distributor so
that the marking rib on the centering tube coin-
cides with the marking rib on the distributor rim
(see photo alongside), i.e.
rib on rib.
• Before attaching the green housing check
whether the internal gray spring clip is posi-
tioned properly in its guide groove and can be
easily moved by applying pressure to its pro-
jecting knob.
• Now place the dosing unit housing over the
centering tube. The alignment is again
rib on
rib, see photo alongside.
Make sure that the centering tube fits into the
opening on the top of the housing.
rib
rib