Leak test fails on ACQUITY Solvent Manager - WKB20628

SYMPTOMS

• Dynamic leak test fails on Primary and/or Accumulator pump
• High leak rate (>1000 nl/min)

ENVIRONMENT

• ACQUITY UPLC BSM
• ACQUITY UPLC H-Class Quaternary Solvent Manager (QSM)
• ACQUITY UPLC I-Class BSM

CAUSE

Erosion of pump head and or seal wash housing and or support plant, seal wash housing will be etched with cross mark of the seal. 

FIX or WORKAROUND

Replace the required parts:

1. Rebuild seals, plunger and CV. Accumulator rebuild kit, Part Number: 700004746 (ACQUITY UPLC BSM), 700010584 (ACQUITY UPLC I-Class BSM) and 700004746 (ACQUITY UPLC H-Class QSM)
    Primary rebuild kit, Part Number: 700004747 (ACQUITY UPLC BSM), 700010583 (ACQUITY UPLC I-Class BSM), and 700004747 (ACQUITY UPLC H-Class QSM)
2. Pressurize new seals for at least 15 minutes close to leak test pressure limit
3. Perform dynamic leak test to confirm leak rate is within acceptable limit.

ADDITIONAL INFORMATION