Primary pump fails to compress during dynamic leak test - WKB52648
Article number: 52648
SYMPTOMS
- Accumulator can pass or fail the leak test
- Primary pump fails to compress at 12000 psi; cannot complete the dynamic leak test
- Flow pulses when priming
ENVIRONMENT
- ACQUITY UPLC BSM
- ACQUITY Arc QSM
CAUSE
A blocked in-line filter starves the primary check valve (passive).
FIX or WORKAROUND
- Replace the in-line filter part number 700002912 (ASSY, FILTER, IN-LINE, SS FRIT).
- Prime the pump for two minutes.
- Rerun the dynamic leak test.
ADDITIONAL INFORMATION
In-line filter assembly part number
id52648, checkvalve, DLT, UPBINARY, UPBSM+, UPBSMIVD, UPIBSM, UPIBSM+, UPIBSMIVD, UPLCCOLHTR, UPNBINARY, UPPBSM, UPSMIVD, UPSMPMGR