VACUUBRAND RC 5 - Manual (Page 18)

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.: 99 78 31 / 20/12/2006
page 18 of 28
Cleaning and inspecting the pump heads:
➨ If the position of the pump is to be changed as to work more comfortably, the pump
may be placed so that rests on the side with the mains switch. Prevent any conden-
sate from leaking from the catch pot of the oil mist filter.
➨ Drain condensate before beginning maintenance!
Attention! Do not tilt pump to an angle that would allow oil to make its way into the
oil mist filter. Drain oil if necessary (see ” Oil change”). Refill pump with oil before
starting the pump!
➨ If the pump is to be positioned in a way different than described above drain oil
beforehand and support or underlay pump appropriately. Attention: Prevent any
damage of the oil mist filter, do not prop up pump with oil mist filter.
Replacing the diaphragm:
➨ Use open-ended wrench, remove screw-in fittings from all
pump heads and remove manifold.
➨ Use a metallic face wrench to remove diaphragm support
disc.
➨ Check for washers under clamping disc. Do not mix the
washers from the different heads. Make sure that the origi-
nal number is reassembled at the individual pump head.
☞ Smaller number of washers: The pump will not attain ulti-
mate vacuum. More washers: Clamping disc will hit head
cover; noise or even blockade of the pump.
➨ To check the valves use hex key to remove four socket-
head screws from pump head and remove housing cover
with head 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).
➨ Remove head cover carefully from housing cover. Note po-
sition of valves and remove them.
☞ Replace valves if necessary.
☞ Use petroleum ether or industrial solvent to remove depos-
its. Do not inhale.
☞ 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 if necessary. Do not inhale.