USA Scientific Adjustable Volume Pipet Single-Channel 500–5000µl

Remove the sealing ring from the tip cone using the auxiliary tool

Reassemble the pipet in the reverse order

Fully depress the tip ejector button and pull the tip ejector down

Carefully unscrew the tip cone by turning the auxiliary tool counter clockwise

Degrease the piston using an alcoholic disinfectant and re-lubricate with original USA Scientific piston grease

Was the piston replaced due to damage?

Reassemble the pipet in the reverse order

Disassembling The Lower Housing Of The Pipet

Fully unscrew the lower housing by turning counter clockwise (Fig. 9)

Squeeze with finger and thumb on either side of the tip ejector to release it

Pull both clips down and rotate the lower housing through 180° (Fig. 10)

Check the pipet for external contamination

Ensure the tip cone is clean and undamaged

Place the pipet under UV light if necessary

Piston Unit Removal and Cleaning

Release the piston unit from the piston frame by turning it

Remove the entire piston unit from the front

Clean the piston unit externally using an alcoholic disinfectant

Re-lubricate the piston with original USA Scientific piston grease

Replace the piston unit if damaged