English to Spanish Tech/Engineering Mechanics / Mech Engineering

Hello to all.
I've come across this expression while translating an Instruction manual for a Multi Link Biodiesel processor. It's part of a title under the Troubleshooting section that in its entirety reads: "Separator Leakage, Solid Face Outlet".
The content below is not explanatory at all, but here it goes, just in case:

"Check that the operating water to the separator is according what´s written in the ALFA manual.
- Check that the mixing pump speed (Hz) is not too high.
- If the above is okay the bowl most probably is overfilled with deposit. Remove the deposit manual, use the Alfa manual for dismantling and assembly. Inspect and clean the O-rings and narrow holes for the operating water. Always lubricate the O- rings at assembly."

I hope someone can help me out, I'm at a complete loss here!
Thanks in advance, of course.
P.