Metrohm 807 Dosing Unit - Manual (Page 32)

3.7 Disassembling the dosing unit
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24 ￭￭￭￭￭￭￭￭
807 Dosing Unit
CAUTION
Do not dismantle the piston, cylinder and cylinder base any further
unnecessarily. You should do that only if parts require cleaning, care or
replacement. Damage to individual parts will impair the leak-tightness
and accuracy of the dosing unit.
The dosing piston and the cylinder should always be replaced together.
Complete cylinder units can be ordered under 6.1574.XXX or
6.1566.XXX(see Chapter 7.2, page 47)
Pulling out the dosing piston
6.1546.030
NOTE
Use caution when handling the 2 mL cylinder! In contrast to the larger
dosing cylinders, here the dosing cylinder can be pulled out completely.
Pull the dosing piston out of the cylinder as follows:
1 Press down on the white grip of the piston tongs 6.1546.030.