The data, information and descriptions, and the technology described herein are the exclusive intellectual property of Ecotechnics S.p.A. and constitute industrial
secrets. Said information is communicated in strict confidentiality; said information may be used only for the purpose for which it is communicated; said information
may not be divulged, communicated, or revealed to third parties and/or reproduced by any means for any reason whatsoever; said information is protected under
applicable Italian competition and industrial property law.
pag.14 - 18/10/2005
Service manual VA500-VA750 ed.1 ver.5.05 [MANU360.SA0].doc
3) Unscrew the drain cap (5).
4) Allow all the oil to run out into a disposal
container (with height < 10 cm)
5) Close the drain cap (5).
6) Pour in new oil through the filling hole (3
- opened previously) until the level rises
to the midpoint on the indicator (4).
7) Replace and tighten the filling cap (3).
M.3) Decontamination (only Model “A”)
Dark or turbid oil or an increase in the oil level
are signs that the oil has been contaminated
by foreign substances. In these cases proceed
as outlined below.
1) Disconnect the machine from the mains
supply.
2) Unscrew the ballast valve (2) by 2 (two)
turns.
3) Reconnect the machine to mains
supply.
4) Run the vacuum phase for one hour on
the hoses, with the taps open, and with
the quick coupler connected.
5) Disconnect the machine from mains supply.
Should decontamination not return the oil to its original state (light color and no traces of
emulsion), change the oil.
NOTE: vacuum pump maintenance procedure described into the users manual ed.0 is non
correct, decontamination is available only for vacuum pumps model “A”.
2
1
3
4
MAX
min
5
5
4
MAX
min
3
1
Model “A”
Model “B”
