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