Manual Tightening Of The Draw-Rod Nut - ABB GSBK Series Installation And Maintenance Manual

Transformer bushing
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8.
Remove the lifting eyes (1).
9.
Tighten the draw-rod nut, refer to Hydraulic tightening of the draw-rod nut, page 38, or Manual
tightening of the draw-rod nut, page 36.
End of instruction

4.5.2 Manual tightening of the draw-rod nut

Overview
This procedure requires the draw-rod nut, washer and threads of the draw rod to be correctly lubricated. The
draw rod will not get the correct tension if the fasteners are not correctly lubricated, this can cause the
bushing to fail.
Procedure
1.
Make sure that the draw-rod nut, and threads of the draw rod are correctly lubricaded, and that the
draw-rod nut is tightened to 10 Nm.
2.
Measure the distance (a).
36
NOTE!
The bushing is delivered with an
information sheet that specifies the
measurement (b-a). These values are
measured when the bushing is
manufactured, and are unique to every
unit.
Installation and maintenance guide
1ZSC000563-AAB EN, REV. 6, 2019-09-12

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This manual is also suitable for:

Gsbk 170Gsbk 245Gsbk 362Gsbk 420Gsbk 550

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