WI-181 Replace diluter syringe parts

*Only applicable for Diluter syringe QWLV030009, Diluter syringe QWLV030021 have to be replaced after 2 years

Repair set QWLV030901 contains:

• QWLV050001 O-ring
• QWLV030006 Teflon tip

Disassembly of the diluter syringe:

1. Unscrew the syringe from the diluter assembly.
2. Pull the plunger out of the syringe.
3. Cut the Teflon tip of the plunger with a sharp knife.
   Be careful not to damage the metal plunger.
4. Replace the O-ring
5. Replace the old tip for the new tip.
6. Moisten the tip with water to ease the tip back into the glass syringe barrel.
7. Install the syringe back on to the attachment.

Check diluent system:

1. Prime diluent [Maintenance] [prime diluent]
2. Repeat this step until there are no more air bubbles in the total diluent system.

Check your dilution settings:

1. Select display dilution on [Settings] -> [General settings] -> [Display dilution] -> ON.
2. Run 10 samples through the instrument and make a note of the dilution rate.
3. Calculate the mean value of the 10 samples.
4. Make adjustment if necessary in [Settings] -> [Diluter settings] -> [Dilution adjustment].