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User’s guide VUBB
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Fig. 31. The bevel gear can be turned 360°.
3.6 Mounting of external drive shafts
The external drive shafts consist of square tubes. They must
be connected to the spherical shaft ends of the bevel gear
and the motor-drive mechanism by means of two coupling
halves.
The bevel gear can be turned so that the horizontal shaft for
the motor-drive mechanism is in correctly positioned. See Fig.
31. The limit for turning depends on the arrangement of the
accessories, but the shaft can be at any angle.
CAUTION
Before mounting shafts and couplings, all parts must
be cleaned and greased to ensure correct function.
Let the parts of the shaft system that should be
dismantled before transporting the transformer
to the site keep their identification numbers
according to the packing list to simplify the
remounting of the shaft system on site.
The tubes around shafts and couplings are for
protection.
3.6.1 Mounting of horizontal drive shaft
1. Make sure that inclination of the shaft is less than 4°.
(4° = 70 mm for every 1000 mm of shaft length.)
Protective tubes with slotted ends must be used.
Make sure that the slots on the protective tubes are
facing downwards.
Removal and inspection of the couplings must be
possible when one of the tubes is pushed into the
other.
2. Fit two coupling halves on one end of the shaft. See
Fig. 32.
3. Fit six screws and washers in the holes on the coupling
halves. See Fig. 33.
Fig. 32. Fit two coupling halves on the square shaft.
Fig. 33. Fit screws and washers to the coupling halves.
