Waters 2545 Binary Gradient Module - Replacing an Outlet Check Valve Cartridge

3-22 Maintenance
Replacing an outlet check valve cartridge
The binary gradient module path contains two outlet check valves per pump
manifold. The check valves are made of synthetic ruby and sapphire in
easy-to-replace cartridges.
Required materials
• Plastic tweezers (part number 605000106)
• Replacement check valve cartridge (part number 700001493)
• Squeeze bottle with methanol (or an appropriate miscible solvent)
• 30-mL syringe (part number WAT271053, included in Startup Kit)
• 1/2-inch open-end wrench
To replace an outlet check valve:
1. Remove the fitting at the outlet check valve holder.
2. Use the 1/2-inch wrench to remove the check valve holder from the
manifold.
Disconnecting the outlet check valve holder