MAXA 5300 W Bedienungs- & Installationsanleitung Seite 34

4. Operate the vacuum pump to evacuate. After starting evacuation, slightly loose
the flare nut of the Lo valve on the gas pipe side and check that the air is entering
(Operation noise of the vacuum pump changes and a compound meter indicates 0
instead of minus)
5. After the evacuation is complete, fully close the handle Lo of the manifold valve
and stop the operation of the vacuum pump. Make evacuation for 15 minutes or
more and check that the compound meter indicates -76cmHg (1x105Pa).
6. Turn the stem of the packed valve B about 45° counterclockwise for 6-7
seconds after the gas coming out, and then tighten the flare nut again. Make sure
the pressure display in the pressure indicator is a little higher than the atmosphere
pressure.
7. Remove the charge hose from the Low pressure charge hose.
8. Fully open the packed valve stems B and A.
9. Securely tighten the cap of the packed valve.
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