Perform other diagnostic tests and functions
July 29, 2013, 715003794 Rev. B 235
To perform the static leak test:
1. In the Other Diagnostic screen, select Static Leak Test in the Other
Diagnostics screen, and then press the OK screen key.
2. Follow the instructions in the Static Leak Test screen.
3. Disconnect the tubing at the outlet of the in-line filter, and loosely insert
the pin plug into the in-line filter outlet.
4. Collect the solvent runoff in an appropriate waste container.
5. Press Continue after you have inserted the pin plug.
6. Follow the instructions in the subsequent Static Leak Test screens to
complete the test.
When the test ends, the Static Leak Test Results screen appears.
Failing result
If the static leak test indicates a failing result, confirm these things:
• No obvious leaks exist.
• The prime/vent valve is closed.
• The degasser is set to On.
• Compression fittings and head nuts are tight.
• The appropriate solvent (methanol or water is recommended) was used.
If necessary, ensure a good seal around the plunger and head surface by
flowing at high pressure before rerunning the test. For example, install a
restrictor sufficient to achieve 27579 to 31026 kPa (4000 to 4500 psi)
backpressure at a flow rate of 0.5mL/min.
Finally, repeat the static leak test.
Continued failing result
Take these actions if the static leak test continues to fail:
• Ensure that the degasser is set to On.
• Perform a wet prime for 10 minutes, at 1.0 mL/min, using methanol and
an in-line restrictor to achieve 27579 to 31026 kPa (4000 to 4500 psi)
backpressure. Performing a wet prime increases the stroke to its
maximum length.
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