VACUUBRAND ME 4R - Manual (Page 14)

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 14 of 21
To check the valves, remove head cover carefully from hous-
ing cover.
➨ Use hex key to remove four socket-head screws from pump
head and remove upper housing (head cover with housing
cover and valves).
☞ Never remove parts by using a spiky or sharp-edged tool
(e. g. screw driver), we recommend to use a rubber mallet
or compressed air (to be blown carefully into port).
➨ Note position of valves and remove them.
☞ Replace valves if necessary.
Cleaning and inspecting the pump heads:
➨ Use open-end wrench (w/f 17) to remove screw-in fittings
from all pump heads and remove manifold. Steady fitting
with a second open-end wrench (w/f 20).
➨ Detach manometer from adjustment device using open-end
wrenches w/f 14 and 17.
➨ Unscrew hollow bolt at adjustment device with open-end
wrench w/f 17 whilst steadying fitting with a second open-
end wrench (w/f 20).
☞ Check diaphragm for damage and replace if necessary.
➨ To do so use Phillips screw driver to remove four counter-
sunk head screws and lift off housing plate.
☞ Use petroleum ether or industrial solvent to remove depos-
its. Do not inhale.