Inspecting and Cleaning the Tip Eject Chutes

Parts and Materials Required

• Proper PPE
• Hex screwdriver, 4 mm long
• Hex screwdriver, 2.5 mm
• Endozime
• Tip Eject Chute Station

Time Required

• 15 minutes

Procedure

Warning—Use Personal Protection and bleach the module as necessary.

Note—The Tip Eject Chute is a passive element. It has no connection to the CAN, BUS, or power.

1. Put on proper PPE.
2. Using Service Software, clear MTUs.

   

3. Carefully open the Service Drawer.
4. Inspect the Sample and Reagent Tip Eject Chutes for any build-up.

   

5. If any build-up is present, remove the Tip Eject Chute Station.
6. Remove the front and rear screws that secure the metal chute to the black plastic eject section.

   

   Note—The newer all plastic chute design is a two-part plastic assembly that can be separated without tools. Pull each of the plastic clasp flexures back and lift the plastic plate past the head of the clasp flexure. Once the plastic plate is clear of all the plastic flexures slide the plastic plate free.

   

7. Deactivate the Reagent and Sample Eject Chute using the appropriate concentration of bleach solution.
8. Soak the chute in Endozime or suitable solvent to remove the TCRTarget capture reagent—An assay-specific reagent added as part of specimen pipetting. and Sample build-up inside the chute. Some scrubbing may be required.

   Warning—The Tip Eject Chute is a contaminated module. Personal protection and cross-contamination should be considered high priorities.

   If no suitable tray is available, use a zip-lock bag. Be sure the bag will not leak.

   

9. Clean all parts of the Tip Eject Chute Station.
10. Reverse the procedure in step 7 to replace the metal chute.
11. Replace the Tip Eject Chute Station.

Alignment/Calibration

Sample Tip Chute

• Teach the Sample Pipettor to the Sample Dispense Slot.
• Teach the Sample Pipettor to the Sample Tip Eject Chute.
• Teach the Distributor to the Sample Dispense Slot.

Reagent Tip Chute

• Teach the Reagent Pipettor to the Reagent Tip Eject Chute.

• Teach the Distributor to the Sample Dispense Slot.

Verification

• Using Service Software, verify pick and strip sample tips.