Thermo Scientific Dionex UltiMate 3000 Series Operating Instructions Manual page 207

7.6.3.4 Replacing the Piston Seals in the Plate of the Seal Wash System
Description
Piston seal in plate of seal wash system
(→ Fig. 65, page 184, no. 3) for
NC pump and loading pump
1. To remove the pump head and pistons, follow the steps in section 7.6.2.1
(→ page 188).
2. Remove the plate of the rear seal wash system.
3. Set the seal insertion tool to the side of the seal (on the low-pressure side of the plate)
as shown in the picture and push the seal out of the plate.
Fig. 76: Removing the seal from the plate of the seal wash system
4. Insert and push the replacement seal into the plate (high-pressure side) with your hand.
To prevent contamination, put on a pair of gloves.
The open side faces
away from the plate
Fig. 77: Inserting the piston seal into the plate of the rear seal wash system
5. Place the plate of the rear seal wash system onto the pump head.
6. Install the pistons and pump head (→ page 190).
Operating Instructions
UltiMate 3000 Series:
NCS-3500RS and NCP-3200RS
Part No.
6040.0033
Page 199