Heidolph VAC control automatic - Manual (Page 64)

64
E
Proper location and orientation of cover and valves are mandatory.
Install lid.
 Make sure lid is seated properly.
Pull 6 ea. hex. recessed bolts hand-tight diagonally,
 thereafter torque to 6 Nm.
Pump does not reach final pressure specified:
 After having replaced diaphragm or valves, pump will need several hours until reaching the
pressure specified.
If after having replaced diaphragm or valves, actual values are off nominal, nothing will change by
breed-in.
Inspect screwed fitting of hoses on pump heads.
pump head with covers and valves
input end
(kidney-shaped
orifice beside
valve)
output end
(cylindrical,
central
orifice below
valve)
motor valve