page 47 of 68
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.: 999290 / 12/12/2016
➨
Position pump on pump feet.
➨
Connect hose to elbow fitting.
➨
Tighten union nuts first by hand and then tighten one full
turn using open ended wrench.
➨
Position the pump on the motor.
Attach hose to the inert gas connection and screw the
locking plate.
➨
Use open-ended wrench to screw the inert gas fitting at
the housing cover.
Assembling fittings
Attention: Perform a leak test always after opening the pump by
using an appropriate leak detector (e. g. helium leak detector)!
Ensure that the diaphragm clamping disc never hits the head
cover while pump is running! Noise check!
If the pump does not achieve the ultimate pressure:
☞
In case the diaphragms and valves have been replaced, a run-in period of several
hours is required before the pump achieves its ultimate vacuum.
If all pump heads achieve a vacuum below 120 mbar but pump does not achieve the
ultimate total pressure:
Check hose connectors between pump heads and manifolds for leaks. If necessary
recheck pump chamber.
