VACUUBRAND ME 4R - Manual (Page 17)

Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999122 / 02/09/2009
page 17 of 21
If the pump does not achieve the ultimate pressure:
☞ In case the diaphragms and valves have been replaced, a run-in period of several
hours is required before the pump achieves its ultimate vacuum.
If all pump heads achieve a vacuum below 110 mbar but pump does not achieve the
ultimate total pressure:
Check hose connections at the pump heads for leaks. If necessary recheck pump
chamber.
➨ Screw on manometer, align it and tighten with open-end
wrenches w/f 14 and 17.
➨ Use open-end wrench (w/f 17) and assemble screw-in fit-
tings at all pump heads. Steady fitting with a second open-
end wrench (w/f 20).