Pfeiffer Vacuum OKTA 300 Betriebsanleitung Seite 89

Property damage from incorrect cleaning procedure
Flushing fluid and process media that enters the bearing and oil chambers will stick.
► During the cleaning processes, always protect all bearings with sealing gas in order to prevent a
The clearance between pistons and housing are within a tenth of a millimeter range. Sustained, accu-
mulating contamination has the following effect:
● the friction heat inside the roots pump increases
● the power consumption of the roots pump increases
● the pistons jam
Required aids
● Brushes and cleaning agents
● Suitable vessel for collecting the cleaning fluid
● Absorbent materials for absorbing the cleaning fluid
Procedure
1. Dismantle the pipes from the vacuum and fore-vacuum connections.
2. Clean the suction chamber and the overflow channel with suitable brushes and cleaning agents.
3. After cleaning, completely remove remaining fluids using absorbent materials, and dry the suction
4. After cleaning, mount all pipes.
5. Screw in the drain screws.
7.6 Installing coupling
Danger of injury due to exposed rotating parts
In the operating range of the motor coupling, there is a danger of clothing being caught and wound
up.
► When assembling the motor and coupling, make sure that the coupling protection is seated cor-
► Wear correct clothing.
Required tools
● Allen key, WAF 2.5 mm
● Allen key, WAF 6 mm
● Calibrated torque wrench (tightening factor ≤ 2.5)
Fig. 12:
1 Stud screw (T
2 Coupling half motor
3 Toothed ring coupling hub
4 Cylinder screw (T
contamination of the lubricant and bearing chambers.
chamber.
WARNING
rectly.
Coupling assembly
Observe the installation instructions of the coupling manufacturer.
1 2 3
Installation instructions gear rim coupling
)
A
)
P
NOTICE
4 5 6 7
5 Lock washer
6 Washer
7 Coupling half pump side
8 Clearance E
Maintenance
E
8
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