Eppendorf Research Family - fix, variable, multi - Manual (Page 27)

87
– Please see page 115 of this manual.
– Pull the housing off the cover plate.
– Hold the lower part firmly, as shown in Fig. 7.
– Press side B of the tool under the metal clip and slide it upwards. Lever the
clip off the safety hook.
– Turn the lower part until the second clip is facing forwards. When doing so,
grip the tip holder with your thumb (the tip holder is subject to spring tension).
Lever off the second clip from the safety hook.
– Pull off the tip holder (Fig. 8).
– To clean the piston , pull off the springs (the pistons were deliberately loaded
unevenly), wipe all pistons (with 60 % isopropanol as required) and lubricate
lightly.
– Re-attach the springs and turn them slightly.
– Arrangement of the pistons:
Removing the seals
– The tip holder contains the following for each channel: press piece, spring and
spring plate, with the piston seal underneath (Fig. 9).
– To remove the seals, put your index finger onto the opening of the channel in
the tip holder which contains the defective seal.
The press piece is under spring tension and may pop out during
removal!
0.5 – 10 µL and 10 – 100 µL
– Press the wire punch (side B) on the tool into the openings on the tip holder
and slide the press piece upwards slightly. This loosens the press piece and it
can be removed (Fig. 10).
8-channel
8-channel
12-channel
12-channel
0.5 –
10 –
0.5 –
10 –
10 µL
100 µL
10 µL
100 µL
/ 30 – 300 µL
/ 30 – 300 µL
Pistons 4 and 5
Pistons 3, 4 and 5
Pistons 6 and 7
Pistons 4, 5, 6 and 7
Research – Part B – Maintenance
7_ResearchTeil2_E.fm Seite 87 Donnerstag, 17. April 2008 12:34 12