ACQUITY Arc QSM-R exhibits no flow and no pressure - WKB65495

SYMPTOMS

• ACQUITY Arc QSM-R immediately encounters system overpressure
• Multiple cycles of solvent-line priming produce no solvent at the waste outlet.

ENVIRONMENT

• ACQUITY Arc Quaternary Solvent Manager (QSM-R)
• ACQUITY Quaternary Solvent Manager

CAUSE

Check valves at either the primary or the accumulator pump are clogged or ceased.

Loose, deformed or missing check valve PEEK washer.

FIX or WORKAROUND

Replace the check valve or valves as necessary. Replace check valve PEEK washer (700005221).

ADDITIONAL INFORMATION

700010664 - ACQUITY Arc QSM-R Primary Check Valve (1/pk)

700005164 - ACQUITY, ASSY, Check Valve, Double Ball and Seat (1/pk) (Arc QSM & H-Class QSM)

700005165 - ACQUITY i2 Valve cartridge, H-Class

700005221 - ACQUITY, Washer, Check Valve, PEEK