22
1ZSE 5492-128 en, Rev. 4
1) The shaft must be pushed as much as possible
in the direction shown by the arrow
Shaft
1)
Min. 0 mm
Min. 2 mm Min. 0,1 mm
Epoxy moulding
Current collector
Shaft
Presspahn washer for
axial play adjustment
Washer/shim
Coupling
fm_00103
3 Repairs and adjustments
18. Close the front cover and tighten the domed nuts with a torque of 42 Nm.
19. Reconnect the conductors inside the transformer, loosened in step 7.
20. Rell the transformer with oil. For information about oil lling, refer to the documentation
for the transformer.
21. Fill the on-load tap-changer with oil. For information about oil lling, see the Mainte-
nance Guide.
3.2
Replacement of gaskets between barrier board of steel and selector switch unit
3.2.1 General
Follow section 3.1 where applicable and with following exceptions:
- Distance pieces of wood or pressboard thickness approximately 13 mm.
- Polyvinylacetate adhesive is not needed.
- Instead of section 13 e:
The studs are lubricated with grease for ball bearings. Tighten the M8 nuts with dyna-
mometric wrench 13 Nm, the rst time in sequence according to Fig. 6 and the second
time without special sequence. Re-tightening of the nuts shall be done earliest 5 hours
after the previous tightening with 13 Nm without special sequence.
3.3 Replacement of front cover and top cover gaskets
3.3.1 General
This instruction guides you on how to attend to an oil leakage.
3.3.2 Tools required
■ Box wrench (19 mm)
■ Pump with connection tting the oil valve
Fig. 7. Play check/adjustment.
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