G1311A Leak Test Failure

[ksharp]

Hi all,

One of our 1311A's failed the leak test; specifically, during plateau 2 the pressure change was -2 bar/min instead of >0.

I have swapped out the seals (and worn them in), as well as installed a new piston and a new outlet check valve. Everything seems snug but the result is the same (~ -2 to -3 bar/min). I don't know where my pump is leaking and I am out of ideas. Can anyone help?

Thanks
KS

[Consumer Products Guy]

swap out other piston

check the purge valve, some leak after a time, and tough to notice because of it's waste tubing