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4.8 Manual tightening of the draw-rod nut
Overview
This procedure requires the draw-rod nut 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.
If possible, ABB recommends that the draw rod is hydraulically tightened, refer to Hydraulic tightening of
the draw-rod nut, page 42.
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).
3.
Turn the nut clockwise until you get the correct
extension (b).
Distance (b) = (a) + extension, refer to the table.
Type
GOE(2) 1175
GOE(2) 1425
GOE(2) 1550
GOE(2) 1675
4.
Make sure with a torque wrench that the nut is tightened with a torque of more than 70 Nm and less
than 140 Nm.
End of instruction
Installation and commissioning guide
1ZSC000563-ACF EN, REV. A, 2020-06-25
CAUTION!
Make sure that you do not overtighten
the nut. Use a torque wrench set to
140 Nm.
NOTE!
One turn of the nut corresponds to a
2 mm extension of the draw rod.
Extension
8.5 mm ±1.0
9.5 mm ±1.0
10.5 mm ±1.0
10.5 mm ±1.0
45
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