IL 44-751-1
Instruction Leaflet
Page 16 November, 2001
16. NOTE: Make sure that the position shown on the External Operating Mechanism agrees with
the position of each tap deck The correct position is position number 1.
Figure 22. Fitting of Connector shaft and Drive shaft.
17.
Make sure that the gasket in the groove of the Mounting Boss is undamaged and properly
seated
18. Tighten the four bolts holding the Operating Mechanism to the Mounting Boss by using two
wrenches with ¾ inch hex socket.
19. If the Bevel Gear Housing is to be used for this transformer assembly, these additional
instructions should be followed.
♦
If the transformer has two rows of tap decks, or if the height of the operating mechanism is to
be different from the height of the tap decks, a Bevel Gear Housing is needed.
♦
When the Bevel Gear Housing is used, the Connecting Shaft is mounted to the Bevel Gear
assembly in the same manner as was described above for the Operating Mechanism. The
Bevel Gear Housing is mounted to transformer tank in the same manner as the Operating
Mechanism housing.
♦
To make the external connection between the Bevel Gear Housing and the Operating
Mechanism assembly, an adjustable steel shaft (supplied by ABB when the Bevel Gear
Housing is ordered) is used. This shaft should be pinned to both the Bevel Gear vertical
shaft and to the Operating Mechanism vertical shaft. See figure 23.
NOTE: Make sure that the position shown on the External Operating Mechanism agrees with the
position of each tap deck
