Follow the steps below to replace the two wash lines between the needle wash reservoirs and the inlet port of the degasser located in the pump.
When
Wash line from reservoir to degasser is clogged or damaged
Parts and additional items required
Fresh needle wash liquid
Replacement wash lines labeled W (green) and S (red)
Tools required
Tubing cutter (optional)
TIP
If you have to cut tubing to length, use a tubing cutter. Make sure that the cut is at right angle to the length of the line.
Preparations
Prepare fresh needle wash liquid.
Empty the needle wash system:
- Unscrew the caps of the needle wash reservoirs.
- Together with the cap, remove the wash lines (labeled W and S) from the reservoirs.
- Place the wash lines in a waste reservoir to empty them.
Follow these steps
Remove the retaining guide from the wash lines.
Pull the lines out of the reservoir caps.
Disconnect the wash lines from the degasser.
Connect the replacement wash lines to the degasser inlet ports.
No. | Description |
|---|---|
1 | Inlet for wash line labeled W (green) to reservoir |
2 | Inlet for wash line labeled S (red) to reservoir |
3 | Outlet for wash line labeled S (red) to autosampler |
4 | Outlet for wash line labeled W (green) to autosampler |
Route the wash lines from the autosampler to the solvent rack, through the tubing guides in the autosampler and all modules above the autosampler in the system stack.
Route the wash lines through the guide hole in the solvent rack and push them into one or more of the tubing guides.
No. | Description |
|---|---|
A | Guide hole (solvent rack) |
1-4 | Tubing guides |
Feed each wash line through a retaining guide.
Feed each wash line through an open hole in a cap for a reservoir. The retaining guide keeps the solvent line in place in the reservoir.
Close any open holes in the reservoir caps with the cap plugs.
Slide a filter holder with adapter onto each wash line.
Fill the needle wash reservoirs with fresh needle wash liquid and restart the needle wash system. See Filling the Needle Wash Reservoirs.