User manual

142 1260 Nanoflow Pump User Manual

9 Maintenance

Exchanging the Outlet Valve Sieve

1 Using a 1/4 inch wrench disconnect the valve capillary from the outlet

valve.

2 Using the 14 mm wrench loosen the valve and remove it from the pump

body.

3 Remove the plastic cap with the gold seal from the outlet valve.

4 Using a pair of tweezers remove the sieve.

5 Place a new sieve into the recess of the outlet valve and replace the cap with

the gold seal.

When Sieve — whenever the pump seals will be exchanged

Valve — if internally leaking

Tools required Wrench 1/4 inch

Wrench 14 mm

Parts required # p/n Description

1 G1312-60067 Outlet valve, complete

1 5063-6505 Sieve (pack of 10)

NOTE

Before exchanging the outlet valve you can try to clean it in a sonic bath. Remove the gold

seal and the sieve. Place the valve in upright position (onto the plastic cap) in a small

beaker with alcohol. Place in a sonic bath for 5 – 10 min. Insert a new sieve and replace the

gold seal.

NOTE

Check the gold seal. It should be exchanged when strongly deformed. Place the valve in an

upright position, insert the sieve into the recess and replace the gold seal with the cap.

Make sure that the sieve cannot move and is away from the seal area of the gold seal.