When
To install replacement pump head seals after seal removal
To reinstall a pump head seal that came off during maintenance of pump head parts
Parts and tools required
Pump head seals
Screwdriver, Torx T30
Syringe filled with isopropanol
Lint-free tissue
Parts affected on the pump head
No. | Description |
|---|---|
1 | Pump head |
2 | Pump head seals, for seal wash plate screws (O-ring seals 6.5x1) |
3 | Pump head seal, for seal wash plate (O-ring seal 11x1.5) |
4 | Seal wash plate |
5 | Seal wash plate screws |
6 | Piston |
Follow these steps
Only when reinstalling a pump head seal: Clean the pump head seal, using isopropanol and a lint-free tissue.
Place the pump head seal onto the receiving groove.
No. | Description |
|---|---|
1 | Receiving grooves for pump head seals in pump head; seals for seal wash plate screws (O-ring seals 6.5x1) |
2 | Receiving groove for pump head seal in seal wash plate (side facing the pump head); seal for seal wash plate (O-ring seal 11x1.5) |
With your fingers, press the pump head seal into the groove as far as it goes in.
Place the seal wash plate onto the pump head and insert the screws.
With the screwdriver, tighten the screws crosswise.
Tighten the screws crosswise once again.
Install the piston. See Installing the Pistons.
Install the pump head. See Installing the Pump Head.