Fig. 27: The position of the filler screws depends on the mounting orientation. Example: U
versions
Direction of the high vacuum connection
Procedure
1. Unscrew and remove the higher filler screw from the operating fluid pump.
2. Use the syringe and the operating fluid from the turbopump shipment.
3. Place a container below the filling port.
4. Fill in operating fluid until it overflows at the filling port.
–
Maximum volume 50 ml.
–
In vertical mounting orientation, the filling volume is a little lower.
5. Seal the filler screw.
–
Tightening torque: 3 Nm
7.4 Replacing the electronic drive unit
The electronic drive unit of the turbopump cannot be repaired. In the event of a defect, replace the en-
tire electronic drive unit with a replacement part.
CAUTION
Electric shock and damage to the vacuum pump and electronic drive unit due to improper dis-
connection of components
Even after the mains power is switched off, the turbopump continues to deliver electrical energy dur-
ing its run-down period. If the turbopump and electronic drive unit are disconnected prematurely,
there is the risk of electric shock from contact with live components. There is a risk of electric body
contact and, as a result, the destruction of electronic components.
►
Never disconnect the turbopump and electronic drive unit from each other if power is still con-
nected or if the rotor is running.
►
Monitor the turbopump rotation via the parameters available in the electronic drive unit (e.g.,
[P:398]).
►
Wait until the turbopump comes to a standstill (rotation speed f=0).
NOTICE
Property damage from electrostatic discharge
Neglecting the electrostatic hazard for electronic components results in their damage or destruction
►
Implement ESD safety measures at the workstation.
►
Observe EN 61340 "Protection of electronic devices from electrostatic phenomena".
Maintenance
49/74
To Next Page
Loading...
