Dynamic Leak > 30 μL/min or Dynamic Leak Rate Test fails

Subpages

Probable cause	Suggested actions
1	ProbableCause Air in the primary pump chamber	Check for air in the solvent inlet lines and the Tuning signal: Purge the lines, condition and if necessary prime the pump head
2	ProbableCause Abort due to over pressure	Check solvent and solvent settings Purge and condition the pump head with water
3	ProbableCause Leak in inlet valve	Check for moving air bubbles in tubing directly to the inlet valve: Purge the lines with water to remove dirt Knock at the valve, clean it or replace it
4	ProbableCause Outlet valve not properly assembled	Retighten the outlet valve Check the position of the gold seal
5	ProbableCause Leaky piston seals and/or position-dependent leaks on the piston	Remove the SW tubes from the support ring and check for leaks Replace the piston seals and clean the pistons: Ensure that seals are lubricated when pushed in Use abrasive mesh > 5000 grit

Probable cause

Suggested actions

ProbableCause

Air in the primary pump chamber

Check for air in the solvent inlet lines and the Tuning signal:

Purge the lines, condition and if necessary prime the pump head

ProbableCause

Abort due to over pressure

Check solvent and solvent settings

Purge and condition the pump head with water

ProbableCause

Leak in inlet valve

Check for moving air bubbles in tubing directly to the inlet valve:

Purge the lines with water to remove dirt

Knock at the valve, clean it or replace it

ProbableCause

Outlet valve not properly assembled

Retighten the outlet valve

Check the position of the gold seal

ProbableCause

Leaky piston seals and/or position-dependent leaks on the piston

Remove the SW tubes from the support ring and check for leaks

Replace the piston seals and clean the pistons:

Ensure that seals are lubricated when pushed in

Use abrasive mesh > 5000 grit