VACUUBRAND PC 3012 VARIO plastic housing - Manual (Page 114)

page 114 of 129
Outlet side
MV 10C VARIO-B
PC 3010 VARIO
MD 12C VARIO-B
PC 3012 VARIO
Inlet side
Pumps VARIO-B /
Pumping units PC 301x VARIO
Fittings and tubing of the different pump models:
➨
Disassemble the housing covers (A) to
check the diaphragms and valves.
➨
Unscrew four Allen screws (R) with a 5mm
wide Allen key. Remove the housing cover
with housing cover insert (A) together with
the head cover (D), the valves (B) and the
O-rings (C) (head cover with valves and O-
rings will remain within the housing cover).
+
Never remove parts by using a pointed 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 the head cover (D) carefully from the housing cover. Note the
position and orientation of the valves (B) and remove them.
➨
Replace valves and/or O-rings if necessary.
+
Use petroleum ether or industrial solvent to remove deposits. Do not
inhale vapors.
R