noTE: Use only the piston grease specially recommended by your 3M food safety representative. other types of grease can permanently
damage the piston.
Reassemble the unit and perform a calibration check:
8. Attach the piston (4) by screwing it clock-wise.
9. Attach the black tip ejector assembly (3). Replace the tip cone filter.
10. Attach the tip ejector collar (2) by screwing it clockwise.
11. Replace the battery pack (1). Reset the pipettor and press the start button several times to test the movement. Test the tip ejector operation.
noTE: This same procedure is used to grease the piston. Monthly greasing of the piston is recommended.
7.4. Recommended Care and Maintenance
The 3M Electronic Pipettor II - 5 mL requires regular cleaning to ensure trouble-free operation. Use a soft cloth lightly moistened with a mild non-
abrasive detergent to clean the outer surface of the pipettor. DO NOT AUTOCLAVE.
Recommended Care & Maintenance schedule
Procedure
Clean Tip Cone
Replace Filter
Clean & Grease Piston
4-Sample Calibration Check
10-Sample Calibration Check
Replace Battery
**Heavy use is six or more hours of continuous use daily.
Recommended schedule
Weekly; more frequently with heavy use.
Note: Clean immediately if liquid enters the shaft
Weekly; more frequently with heavy use.
*Note: replace if pipettor is not performing due to a clogged filter, or if sample fluid has contaminated
the filter.
Monthly; more frequently with heavy use.
*Note: if liquid enters the shaft, clean and grease the piston as part of the decontamination procedure.
Monthly; more frequently with heavy use.
Quarterly; more frequently with heavy use.
**Replace after one year, more frequently with heavy use
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