ACQUITY UPC2 fails dynamic leak test - WKB57328

SYMPTOMS

• Unstable system pressure
• ACQUITY UPC2 fails dynamic leak test
• Altered retention times

ENVIRONMENT

• SFC
• ACQUITY UPC2

CAUSE

Failed plunger seals

FIX or WORKAROUND

Replace the plungers and seals.

Plunger part number: 700009000

Seal part numbers: 700009136, 700009137, and WAT076152

If damage observed to pump head replace head before replacing seals PN:700009001

ADDITIONAL INFORMATION

If seal wash is dry due to CO₂ leakage, you may need check valves for the CO₂ pump.

Part numbers 700002968 and 700002596