Reading operating fluid type on rating plate
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Please refer to rating plate of the vacuum pump for type and quantity of intended operating fluid.
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Only the operating fluid used during initial installation is permissible.
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D2 is permitted as a replacement for D1.
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Contact Pfeiffer Vacuum if you want to use another type of operating fluid.
Filling the operating fluid
1. Unscrew the filler screw.
2. Fill the operating fluid according to the sight glass:
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Fill level of the initial filling when the vacuum pump is cold: A maximum of 3/4 of the min./max.
range.
3. Screw in the filler screw again.
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Be careful with the O-ring.
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Tightening torque: max. 0.3 Nm
Installation
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