Service manual

PN 4237242C

5.1-1

MAINTENANCE PROCEDURES

5.1 SYSTEM VERIFICATION PROCEDURE (SVP)

1. Inspect the blue and green filters and change if required. Peristaltic pump tubing wear

requires that the blue filters connected to the diluent and rinse pumps should be

changed every 9,000 cycles.

2. Inspect the peristaltic pump tubing. If it shows excessive wear, or it has been in service

for 18,000 cycles, the tubing should be replaced. If the diluent or rinse pump tubing is

changed, the blue filter associated with that pump should also be changed.

3. Check the aspirate and diluent syringes. If there is evidence of excessive leaking or if

they have been in service for 35,000 cycles, they should be replaced.

4. Check the Hgb-blank voltage and adjust if necessary.

5. Ensure that the Verification section has been completed for any replacement procedures

that have been performed.

6. Perform the

REPRODUCIBILITY AND CARRYOVER

function on the CALIBRATION MENU

(Operator’s Guide, under the Calibration heading in the Replace/Adjust section). Both

these tests must PASS.

7. Run all levels of control and verify that they are within expected limits.