Thermo Scientific Finnpipette Guide D'utilisation Et D'entretien page 9

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LONG-TERM MAINTENANCE
If the pipette is used daily it should be checked every three months. The servicing
procedure starts with the disassembly of the pipette.
DISASSEMBLING ASSEMBLING MULTICHANNEL PIPETTES
1. Press down the tip ejector.
2. Insert the maintenance pliers under the tip ejector bar to release the tip ejector.
3. Remove the tip cone module by pressing it with the maintenance pliers
4. Press the spring and remove the locking pieces from the groove. Remove the
spring, spring support and o–ring.
5. Place the maintenance key in the adapter groove and pull off the adapter.
6. Pull out the tip ejector adapter. Lift the upper end of the tip ejector bar slightly and
push it back. Lift out the module spring.
7. Use a screwdriver to remove the four/six screws in the module cover and lift off
the cover.
8. Remove the piston bar and clean the pistons with a dry nap–free cloth.
9. Clean the tip cones.
10. If needed, replace the seal by carefully releasing the cover ring from its snap joint
with the screwdriver. Remove all the parts from the tip cone. Clean all the parts.
Reassemble the tip cone.
5–50 µl and 50–300 µl: Take one piston. Slide cover ring 32 (larger hole), spring 33,
support ring 35, (o–ring 37 bigger 5-50µl) and o–ring 36 (smaller) onto the piston.
Grease the o–ring with the lubricant provided in the pipette package. Slide all the parts
into the tip cone and close the snap joint of the cover ring.
0.5–10 µl: Take one piston. Slide cover ring 32 (larger hole), support 35, o–ring 36
(bigger), o–ring 37 (smaller) and o–ring support 38 onto the piston. Then slide
spring 39, spring support 40 (sharp edges first) and o–ring 41 onto the o–ring sup
port 38. Grease the o–rings with the lubricant provided in the pipette package. Slide
all the parts into the tip cone and close the snap joint of the cover ring.
11. Grease cleaned pistons with the lubricant provided in the pipette package.
12. Install the piston bar with pistons and tip cones in the cover and close the cover
with the four/six screws.
13. Place the tip ejector and module spring on the neck of the module. Press the spring
below the tip ejector. Close the tip ejector with the tip ejector adapter.
14. Use the maintenance key to slide the adapter to wider groove in the module neck.
15. Slide the o–ring, spring support and spring onto the piston bar and lock with the
locking pieces.
16. Attach the tip cone module to the handle and the tip ejector adapter to the tip ejector bar.
SERVICE INSTRUCTIONS FOR MULTICHANNEL PIPETTE TIP CONES
To ensure even performance between all channels in a multichannel pipette, all tip cones
have to be changed at the same time, if any of them needs to be changed. Don't mix tip
cones of different packages, because one bag contains a matched set of tip cones.
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