ABB PSTX370 Service Manual page 58

4.5.1 Change the Fans
DISMANTLE THE SOFTSTARTER
Remove main power cables and control
cables
Disconnect the main power cables and the control
cables as described in chapter 4.3.3, step 1-3.
Remove cover and PCBA
Dismantle the front cover, all cables and the PCBA
as described in chapter 4.4.1, step 1-5.
1. Remove fan cover
1
Loosen (6x)
cover. Screws are located in each corner, and on
the center bracket, of the fan cover.
4
2
Pull the fan cover outwards from unit with the
fans still mounted on fan cover.
2. Remove fans from fan cover
1
Loosen (8x)
four fans from the fan cover. Screws are placed
diagonally with two screws per fan. Dispose of
expended fans.
3. Fasten fans to fan cover
Note that fans are to be mounted with regards to
air-flow directions.
1
Fasten (8x)
attach the four fans on the fan cover. Screws are to
be mounted diagonally with two screws per fan.
4. Place fan cover
1
Thread the fan cables through the cable inlets.
2
Fasten the fan cover to the unit with (6x)
Torx 20 M4x8 (2,9Nm). Screws are to be mounted
in each corner, and on the center bracket, of the
fan cover.
For full reassembly of Softstarter; See chapter
4.5.4 Assemble the Softstarter
REASSEMBLE THE SOFTSTARTER
Place PCBA, cables and front cover
Place the PCBA, connect all cables and install the
front cover as described in chapter 4.3.1, step
6-10.
Connect main power cables and control
cables
Connect the main power cables and the control
cables as described in chapter 4.3.4, step 1-2.
Service PSTX470...570 | Service Manual |
58
Torx 20 M4x8 from the fan
Torx 20 M4x12 to separate the
Torx 20 M4x12 (1,3Nm) to
1SFC13105M0201
1
2
3
1
4
1
Tx 20
M4 x 8
2
1
4.5.1_1
Tx 20
1
M4 x 12
4.5.1_2
Tx 20
M4 x 8
(2,9Nm)
4.5.1_3
Tx 20
M4 x 8
(2,9 Nm)
2
4.5.1_4