Cleaning A Sample Pump Cylinder And Piston - Thermo Scientific Dionex AutoTrace 280 Operator's Manual

Install the New Plunger Assembly
Follow these steps to install the new plunger assembly for each cartridge holder to
be converted.
1. Screw the new plunger assembly into position on the cartridge holder.
2. Engage the plunger clamp.
3. Make the tubing connection onto the stainless steel tubing on the plunger
lever as shown in
•
To ensure a leak-free connection, use a new double-cone ferrule.
•
The split-cone fitting and coupler removed from the old plunger assembly
can be reused.
4. Use a 1/4-in open-end wrench to secure the split-cone fitting. Install the
coupler by tightening it against the split-cone fitting with a 3/8-in open-end
wrench.
5. Use a 3/8-in open-end wrench to secure the coupler. Install the PEEK nut on
the tubing assembly onto the coupler.
6. Disengage the plunger clamp. Do not leave the plunger clamped; this will
deform the O-ring seal.
Complete the Procedure
Run the Benchmark Test diagnostic method (#30) (see
the cartridge holder works properly.
5.9

Cleaning a Sample Pump Cylinder and Piston

Clean the sample pump cylinder and piston if a pump leak is detected.
Parts and Tools Needed
•
#2 Phillips screwdriver
•
Deionized water
Clean the Pump
1. Stop all sample pumps and any methods that are running.
2. Remove the compression fittings and the inlet and outlet tubing connected to
the pump to be cleaned.
Doc. 065330-05 03/2020
Figure 5-11.
5 • Service
Section 5.17) to verify that
101