Siemens ADVIA 2400, Operator'S Manual, Page: 109 / 200

Maintenance 109
3. Remove the wash head:
a.
Cover nearby cuvettes with lint-free toweling to protect them from dust.
b. Loosen the retaining screw (1) with a 4-mm hex wrench.
c. Lift the wash head from the wash station assembly.
CAUTION
Ensure that the tubes remain connected to the ports. Use care not to crimp the tubing.
Dilution cuvette wash station (DWUD) Reaction cuvette wash station (WUD)
Figure 5-5. DWUD and WUD wash stations
4. Look for signs of wear or damage to the drying nozzle (
2
).
If wear or damage is present, call your local technical support provider or distributor.
5. With prep pads or lint-free towels soaked in 5% bleach solution, wipe each wash
head nozzle and inspect the pipet and tubing for clogs. If clogs are present, manually
dislodge them by feeding the wire stylet, found in the maintenance toolkit, through
the pipette or tube. Check that the three pipes in each nozzle move smoothly against
the spring tension.