Synchronous Generators BG 132 and BG 160

Synchronous Generators BG 132 / BG 160
Chapter 8, Removal
8.3.2 Removal of brushless single-bearing generators
Work prior to removal
1. Disconnect the electric connection cables of the generator as described in
section 4.8 on page 70.
2. Refer to the following descriptions to continue the removal:
- For shaft fastening by grub-screw continue with the following section on
this side.
- For shaft fastening by tension bolt continue on page 101.
Removal for shaft fastening by grub-screw
1. Remove the fan impeller shroud (Figure 35/3) and the fan impeller (Figure
35/2) from the generator. The fan impeller is secured against twisting on the
shaft by means of a feathered key and a sawing ring.
2. Support the generator if necessary and unscrew the four end shield fastening
screws (Figure 35/4) at the generator.
3. Attach the special hexagon nut (Figure 36/2) onto the generator shaft
instead of the fan impeller and secure it against twisting by means of the
feathered key (Figure 36/1).
4. Hold the engine shaft using the special tool of the engine manufacturer.
5. Attach the spanner to the special hexagon nut and undo the grub-screw
connection between engine and generator shaft.
6. Unscrew the generator shaft from the grub-screw screwed into the engine
shaft and detach the generator.
7. Remove the front end shield of the generator which is still mounted on the
engine. For this purpose, unscrew the four screws (Figure 36/3) and detach
the end shield (Figure 36/4).
8. Remount the front end shield (Figure 36/4) to the generator.
98 Issue date: August 2002