max.
min.
max.
min.
1
2
3
Fig. 5:
Filling with lubricant
1 Filler screws
3
Sight glass, gear chamber
2 Sight glass, bearing chamber
Procedure
1. Unscrew the filler screws.
2. Fill the lubricant on both sides according to the sight glass.
– Fill levels for the first fill: approx. 5 mm above the sight glass middle.
3. Screw in the filler screws.
– Tightening torque:
32 Nm
4. Check the fill level during operation in the final vacuum.
You must only refill the lubricant when the roots pump is switched off and vented.
5.4 Connecting the vacuum side
WARNING
Risk of crushing from rotating parts
Fingers and hands may be caught by rotating pistons within the connection flange. This results in se-
vere injuries.
► Keep limbs out of the reach of the roots pump.
NOTICE
Property damage from intake of solid particles
During commissioning, there is a risk of damage to the suction chamber from dirt from the system or
the pipes.
► Use a suitable protective strainer ("start-up strainer") in the intake flange.
► Ensure that this strainer is only removed when the risk of solid particles entering the vacuum
pump can be excluded.
– Observe any pumping speed decrease.
Connecting the vacuum side
1. Degrease the connection flange.
2. Clear welded lines of any tinder, loose parts or similar before installation.
3. Route the piping between the vacuum pump and vacuum chamber so that it remains as short as
possible; at a minimum, the nominal diameter of the pump flange.
– Use a greater nominal diameter on line lengths > 5 m.
4. Support or suspend the piping to the vacuum pump so that no piping system forces act on the
vacuum pump.
5. Always use
all
prescribed screws to fasten the flange.
Installation
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