Installation and commissioning guide
2750 515-1 EN, REV. 14, 2020-06-26
23
Procedure
1. Install the lifting tool:
1. Remove the bolts (6) and washers (7).
2. Install the lifting tool (1), and align the side of
the lifting tool with the oil-level glasses (25).
3. Install the longer M10 bolts (6) and washers
(7) if the lifting tool is mounted on the stud.
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Torque
40 ±4 Nm
2.
Lift the bushing to the vertical position.
3.
Remove the cover for oil plug and the oil plug (9).
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4.
Add clean and dry transformer oil until the bushing is completely filled.
CAUTION!
Make sure that the bushing is completely full of transformer oil. Air left in the bushing can
cause damage.
5.
Install the oil-plug (9).
6.
Lower the bushing to the horizontal position.
7.
Install the bushing in the transformer immediately, refer to Horizontal installation of the bushing on the
transformer, page 24.
CAUTION!
Do not leave the bushing fully filled with oil.
Installation must be done immediately after the bushing is sealed. If not, changes in the
ambient temperature will cause damage to the seals in the bushing.
End of instruction
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