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7 Maintenance
If the separations module's solvent lines are empty, dry prime the solvent
management system before you wet prime it or start delivering solvents (see
"Dry prime the system" on page
Replace an inlet check valve cartridge
For information about isolating check valve problems, see
Tip:
Required materials
•
Wrench, 1/2-inch, open-end
•
Wrench, 5/16-inch, open-end
•
Replacement check valve cartridge
•
Squirt bottle with 100% alcohol (methanol or isopropanol)
•
Syringe (in Startup Kit)
To replace an inlet check valve on either piston chamber:
1.
In the Other Diagnostics screen, select Motors and Valves.
Requirement:
make sure that the GPV valve is set to the Off position (see
motors and valves diagnostic test" on page
2.
Loosen the screws that secure the solvent delivery and conditioning
trays, and pull the trays out a few inches to access the check valves (see
the
figure "Solvent management system components:" on page
3.
Use the 1/2-inch wrench to hold the inlet check valve housing while you
disconnect the inlet check valve compression screw with the 5/16-inch
wrench (see the
4.
Use the 1/2-inch wrench to disconnect the check valve housing from the
manifold.
194
July 29, 2013, 715003794 Rev. B
126).
To prevent fluid leakage during check valve replacement,
figure "Inlet check valve:" on page
Chapter
"Perform the
230).
195).
8.
184).
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Table of Contents
Troubleshooting
