Release a Stuck Inlet Valve
Tools required
Qty. | p/n | Description | |
|---|---|---|---|
1 |  | 9301-0411 | Syringe, Plastic |
1 | | 9301-1337 | Syringe adapter |
1 | | 0100-1710 | Mounting Tool for Tubing Connections |
1 |
|
| Beaker |
CAUTION
Pressure damages the multi-channel gradient valve (MCGV) and/or degasser
- Never apply pressure to the MCGV or degasser.
- Directly connect the syringe to the inlet weaver.
-
Remove tubing connections channels A, B, C and D to the MCGV such that you can access the inlet weaver.
Open the fitting at the center of the multi-channel gradient valve (MCGV). Remove the inlet weaver from the MCGV.
-
Slightly open the black plastic screw at the bottom of the inlet valve, and rotate the inlet weaver to the front. Then retighten the screw.
-
Disconnect the capillary from the pressure sensor inlet and route the capillary to a small beaker.
-
Fill the syringe with a suitable wash solvent.
NOTE
For salt deposits, warm water is a good choice. For organic deposits, use ethanol or acetone.
-
Connect the syringe and adapter to the inlet weaver.
-
Push the syringe for flushing the inlet valve and pump head.
-
Restore original connections. Flush the system for several minutes.
base-id: 4133595531
id: 4133595531