Elmo Rietschle R-VWP 500/1000/1500/2500 - Manual (Page 18)

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Installation
5.3 Connecting pipes
a) Remove transportion cover of the pre-vacuum
and
high-vacuum connection.
b) High-vacuum connection at (Fig. 2/A... 3/A).
NOTICE
The pumping capacity of the vacuum pump
is reduced if the suction pipe is too narrow
and/or too long.
If the suction pipe is longer than 5 m, then a
larger diameter than that of the pump fl ange
should be used.
c) Pre-vacuum connection at (Fig. 2/B... 3/B).
NOTICE
The pre-vacuum connection must not be ob-
structed or partly obscured.
5.4 Sealing gas connection
In order to prevent aggressive media from pen-
etrating into the gear chamber, sealing gas can be
superimposed over the labyrinth sealing system (see
sealing gas connection (Fig. 2, 3/S)).
For further information please contact our company.
5.5 Gauge connection
Gauge connection at (Fig. 2, 3/U) for connecting of
measuring installations.
5.6 Filling with lubricating oil
a) The lubricating oil (recommended brands see
under “Maintenance”) for the toothed wheels
and bearings can be put into the booth oil fi ller
ports (Fig. 2, 3/H
1
, H
2
), until the oil level shows at
the middle of the oil sight glasses (Fig. 2, 3/I
1
, I
2
).
After fi lling make sure the oil fi ller port is closed.
b) The shaft sealing oil must be fi lled in the sealing
oil pot (Fig. 2, 3/G). The oil level must be visible.