OK, thanks, it seems to work fine.

I was the one who closed off the tubes btw.
Only i got no idea of the specs on this compressor.. It weighs about 16kg.
Some numbers written on it:
87-04-08
RK5515GNE1
AHA201A070A
DPH 30 DPL 13 R-22
2P 1PH 220/240V 50Hz
Does someone know anything about it?
Thanks..