ABB PSTX210 - Page 60

60 Service PSTX470...570 | Service Manual | 1SFC13105M0201
4. Remove first internal phase bar
1
Loosen (2x) Torx 30 M6x25 and remove
the first internal phase bar. Note that one screw is
mounted on cooling tower.
5. Remove angle brackets
1
Loosen (4x) Torx 30 M6x25 and remove the
two angle brackets. Note that outer screws of each
bracket are mounted to cooling towers.
6. Remove bar holder
1
Slightly untighten screw from the middle phase
Hexagon no. 8 M10x40.
2
Loosen (2x) Torx 30 M6x16 and pull the bar
holder outwards from unit.
Dismantle/assemble current transformers from/to
bar holders as described in chapter 4.4.4.
7. Place new bar holder
1
Place the new bar holder to the unit and align it
correctly to phases and screw holes. Fasten with
(2x)
Torx 30 M6x16 (8Nm).
2
Fasten the middle phase bar screw
Hexagon no. 8 M10x40 (28Nm).
REASSEMBLE THE SOFTSTARTER
Reassemble the Softstarter as described in
chapter 4.5.4, 1-6.
Tx 30
M6 x 25
4
4.5.2_5
1
Tx 30
M6 x 25
5
4.5.2_4
1
Tx 30
M6 x 16
Hexagon n. 8
M10x40
6
4.5.2_6
1
2
Tx 30
M6 x 16
(8Nm)
Hexagon n. 8
M10x40
(28Nm)
7
4.5.2_7
2
1
4