ABB PSTX370 Service Manual page 68

4.6.2 Assemble the Softstarter
Please don't forget to vacuum clean the
Softstarter from dirt and dust when reassembling.
CAUTION
Use protective gloves when working with cover
plates to prevent cutting injuries.
1. Place phase rails and fasten screws
1
Mount the phase rails to the bypass contactor
(terminals 2T1, 4T2 and 6T3).
2
Fasten (6x)
(28Nm) to the phases on the bypass contactor. In
4
order to mount the bar holder; do not fully tighten
the screw for the middle phase (4T2).
3
Fasten bypass contactor to unit with (4x)
Hexagon no. 4 M5x100 (2,9Nm).
2. Place bottom bar holder
1
Place the 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).
3. Place angle brackets
1
Fasten the two angle brackets to unit with (4x)
Torx 30 M6x25 (8Nm) Note that outer screws
of each bracket are mounted to cooling towers.
4. Place first internal phase bar
1
Fasten phase bar to unit with (2x)
M6x25 (8Nm). Note that one screw is mounted on
cooling tower.
Service PSTX470...570 | Service Manual |
68
Hexagon no. 8 M10x40
Torx 30
1SFC13105M0201
1
3
2
2
3
4
Hexagon n.8 Hexagon n.4
M10x40 M5x100
(28Nm) (2,9Nm)
1
4.6.2_1
Tx 30
M6 x 16
(8Nm)
2
Hexagon n. 8
M10x40
(28Nm)
1
4.6.2_2
Tx 30
M6 x 25
(8Nm)
1
4.5.4_2
Tx 30
M6 25
(8Nm)
1
4.5.4_3