it’ only three screws the front the bar
holder, the other two screws are the bottom.
12.470 1SFC 380003-89.
Go step 17
9.
For PSTB570.
For PSTB370. Disconnect the flexibar from the contactor
10.
.
13. Rem ove the cables from contactor coil..1050 1SFC 380023-en.
11.. Rem ove the five screws the bar holder..exchange the Main Contacts, Arc Chutes or
Coils see Operating instruction for Contactors.. Unfasten the six hex socket head cap screws