Disconnect the flexibar from the contactor
10. Unfasten the six hex socket head cap screws.
For PSTB370.470 1SFC 380003-89.
12..exchange the Main Contacts, Arc Chutes or
Coils see Operating instruction for Contactors.. it’ only three screws the front the bar
holder, the other two screws are the bottom.1050 1SFC 380023-en.
For PSTB570.
Go step 17
9.
..
11. Rem ove the cables from contactor coil. Rem ove the five screws the bar holder.
13.
