Elmo Rietschle V-VGC 4/6 - Manual (Page 15)

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Installation
5.3 Connecting pipes
NOTICE
Material damage resulting from the forces and
torques of the pipes on the unit being too high
Only screw pipes in by hand..
The pumping capacity of the vacuum pump
is reduced if the suction pipe is too narrow
and/or too long.
The air vent (Fig. 1/B) must not be closed or
restricted.
Counter pressures on the outlet side are only
permissible up to + 0.1 bars.
Prevent liquids accumulating in the exhaust
line
a) The vacuum connection at (Fig. 1/A).
b) The air handled can be exhausted into the at-
mosphere through the silencer (Fig. 1/B).
5.4 Filling with lubricating oil
a) Fill the lubricating oil (for suitable types see the
„Maintenance“ section) via the oil fi lling point
(Fig. 1/H) up to the upper edge of the sight glass
(Fig. 1/I).
b) Close the oil fi lling point.