In-House Maintenance - Biohit Proline Mode D'emploi

9.2. In-house maintenance

1. Hold down the tip ejector.
2. Place the tooth of the opening tool between the tip ejector and
the tip ejector collar to release the locking mechanism (Fig. 11).
3. Carefully release the tip ejector and remove the tip ejector
collar.
4. Place the wrench end of the opening tool over the tip cone,
turning it anticlockwise. Do not use any other tools (Fig. 12).
The 5 ml tip cone is removed by turning it anticlockwise without
any tools (Fig. 13).
5. Remove the tip cone, piston, and spring. Remove the filter if
fitted.
6. Place the tip cone, tip ejector, tip ejector collar, piston, O-ring,
and spring into a beaker containing Biohit Proline Biocontrol
and leave for at least 30 minutes to secure complete
decontamination.
7. Remove the components from the beaker and rinse them with
distilled water, then dry, preferably with warm air, for at least
one hour.
8. Before replacing the tip cone it is recommended to grease the
piston and O-ring slightly by using the silicone grease provided.
9. After reassembling press the operating button several times to
ensure that the grease has spread evenly.
10.Check the pipettor calibration.
Note: Instead of Biocontrol you can use ethanol: Wipe the piston, the
O-ring, and the tip cone with ethanol and a lint-free cloth.
Note: On models 720005, 720000, 722001 and 722004 (≤10 µl
pipettors) the O-ring cannot be accessed for maintenance.
Note: Excessive use of grease may jam the piston.
1.
3.
2.
Fig. 11
1.
2.
Fig. 12
13
1.
2.
Fig. 13