7.3 Replacing device fuses
WARNING
Danger to life from electric shock during maintenance and service work
The vacuum pump is only completely de-energized when the mains plug has been disconnected.
There is a danger to life from electric shock when making contact with live components.
► Before performing all work, switch off the mains switch.
► Disconnect mains cable from mains plug.
► Wait 2 minutes until the capacitors have discharged.
► Secure the vacuum pump against unintentional re-start.
The device fuses are located in the terminal box and are integrated in a cable.
Prerequisites
● Supply voltage switched off
● Drive motor disconnected from mains and secured against activation
Required tool
● Screwdriver
Spare parts required
● Fuse kit
4
2
3
1
Fig. 8:
Device fuses in terminal box
1 Terminal box
3
Cylinder screw (4×)
2 Capacitors
4
Device fuses in cable
Replacing defective device fuses
1. Loosen cylinder screws.
2. Remove the cover from the terminal box.
3. Unplug complete cable with integrated fuses at flat pin bushings.
4. Replace complete cable.
5. Place the terminal box cover on the vacuum pump.
6. Fasten cylinder screws.
Maintenance
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