VACUUBRAND RC 5 - 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.: 99 78 31 / 20/12/2006
page 14 of 28
Before starting maintenance, isolate the pump from the vacuum system and the elec-
trical supply so that the pump cannot be operated accidentally.
Has the pump been exposed to dangerous or corrosive gases?
Take appropriate safety measures (e. g. safety-clothing and protective goggles) to
avoid inhalation and skin contact.
The pump and the oil may be contaminated with pumped chemicals which have been
pumped, adopt suitable decontamination measures if necessary.
Aging of the oil necessitates oil change in case of darker colour (see new oil), strange
odour of the oil or foreign particles.
Depending on individual cases (especially if corrosive gases or vapours have been
pumped) it may be efficient to check the oil at appropriate intervals.
The oil contains small quantities of water/solvent:
☞ The oil can be cleaned to a certain extent by operating pump for 1 - 2 hours with
the inlet line sealed and gas ballast valve open.
☞ After every oil change (with the exception of the first oil change after 100 operating
hours), inspect and clean pump chambers of diaphragm pump.
☞ After every oil change, check condition of filter element in oil mist filter; replace
element if necessary.
Under normal operating conditions:
➨ Check oil level every time before starting the pump.
☞ Carry out the first oil change after 100 hours operation time.
☞ Change oil on a yearly basis at the latest.
☞ Dispose of the used oil, which may be contaminated by chemicals, according to all
applicable regulations.
Oil change
oil outlet
sight glass for oil level
oil inlet
rating plate with marks
Min./Max.
for oil level