For PSTB570. Unfasten the six hex socket head cap screws.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. Rem ove the cables from contactor coil.
11.. Disconnect the flexibar from the contactor
10.
For PSTB370. Rem ove the five screws the bar holder..470 1SFC 380003-89.1050 1SFC 380023-en.
Go step 17
9..
12.
..
13
