5 Installation
5.1 Preparatory work
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.
Filling the nitrogen
The vacuum pump is filled with nitrogen to protect against corrosion, therefore the
suction chamber has a slight over pressure (200 hPa) upon delivery
● Prior to installation, you must dismantle the fittings required for nitrogen filling.
Required tools
● Hexagon wrench
SW 19
● Hexagon wrench
SW 22
● Calibrated torque wrench (tightening factor ≤ 2.5)
6
4
5
7
2
3
1
Fig. 4:
Dismantle the fittings to vent the vacuum pump
1 Protective cover
5
Small flange
2 Measurement connection
6
Circlip
3 Seal
7
Ball valve
4 Locking screw
Draining the nitrogen
1. Open the ball valve and establish the pressure compensation.
2. Undo the circlip and at the same time remove the ball valve.
3. Unscrew the small flange on the measurement connection.
4. Lock the measurement connection using the locking screw.
– Tightening torque:
32 Nm
5. Dismantle the protective cap from the inlet flange and exhaust flange.
5.2 Installing the vacuum pump
CAUTION
Risk of injury from loss of stability
During setup, there is a risk of injury from tipping, if the vacuum pump is not anchored on the stand-
ing surface.
► Secure the vacuum pump using suitable lifting gear.
► Wear personal protective equipment.
Installation
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