ABB IRB 640 - 6 Pushbutton Unit for Releasing Brakes; Replacing Pushbutton Unit

Repairs Pushbutton unit for releasing brakes
Product Manual IRB 640 37
6 Pushbutton unit for releasing brakes
6.1 Replacing pushbutton unit
Refer to foldout no. 2
Dismounting:
1. Remove the pushbutton unit <3> located in the frame.
2. Disconnect connectors R3.BU1-6(X8), R3.BU1-3(X9), R3.BU4-6(X10).
Mounting:
3. In reverse order.