User Manual
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.: 999164 / 19/05/2009
page 69 of 75
If the pump does not achieve the ultimate vacuum:
☞ 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.
☞ In case of unusual noise switch off pump immediately and check clamping disc
positions.
If the specied ultimate vacuum is not achieved and if this does not change after the
run-in period:
Check hose connectors at pump head for leaks. If necessary recheck valve seats
and pump chambers.
Reassembling the pump at the pumping units PC 3010/3012 VARIO:
➨ Lay the pump on its side: the rating plate of the pump has to be on top (support pump suitably).
☞ Note that to install the console, the exhaust waste vapour condenser and the condensate ask must
be on top.
➨ Push the console over the threads at the pump feet.
➨ Install the serrated washers. Install the hex nuts and tighten using open-ended wrench (w/f 10).
Place pumping unit in normal operating position.
➨ Attach the connecting hose between the pump and the exhaust waste vapour condenser at the inlet of
the condenser. Connect exhaust waste vapour condenser to the coolant circuit. Plug in VACUU•BUS
cable at controller.
➨ Remove the red union nut at the condenser. Remove hose from the inlet of the condenser.
➨ Pull off old overpressure safety relief device and install new one.
➨ Connect hose to the inlet of the exhaust waste vapour condenser and tighten union nut.
Replacing the overpressure safety relief device at the exhaust waste vapour
condenser:
Overpressure safety relief device at exhaust waste vapour condenser .............................638821