4
5
1
2
3
Fig. 21:
Removal of electronic drive unit TC 400
1 Allen head screw
4
Fore-vacuum connection blank flange
2 Electronic drive unit
5
Pump base
3 High vacuum connection protective cover
Procedure
1. Install the turbopump upright if required.
2. Unscrew all 3 Allen head screws from the electronic drive unit.
3. Pull the old electronic drive unit off the turbopump, taking care to keep it straight.
7.4.2 Installing the electronic drive unit
Required tools
● Allen key,
WAF 3
● Calibrated torque wrench (tightening factor ≤ 1.6)
4
5
1
2
3
Fig. 22:
Installation of electronic drive unit TC 400
1 Allen head screw
4
Fore-vacuum connection blank flange
2 Electronic drive unit
5
Pump base
3 High vacuum connection protective cover
Maintenance
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