Synchronous Generators BG 132 and BG 160
Synchronous Generators BG 132 and BG 160
Synchronous Generators BG 132 and BG 160
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<strong>Synchronous</strong> <strong>Generators</strong> <strong>BG</strong> <strong>132</strong> / <strong>BG</strong> <strong>160</strong><br />
Chapter 6, Maintenance<br />
6.4 Maintenance to be performed by authorized qualified<br />
personnel<br />
Any maintenance, service <strong>and</strong> replacement operations on the<br />
<br />
generator may only be performed by authorized <strong>and</strong> qualified<br />
personnel.<br />
DANGER<br />
In addition to the safety precautions listed below, read <strong>and</strong> observe the safety<br />
precautions given in section 6.2.<br />
6.4.1 Checking <strong>and</strong>/or replacing the carbon brushes (only brushtype<br />
generators)<br />
The carbon brushes of brush-type generators have to be removed <strong>and</strong> checked<br />
every 1.000 hours of operation by qualified personnel as described below. If the<br />
carbon brushes are used up more than half, the complete carbon holder must be<br />
replaced. It is not possible to replace only one single carbon brush.<br />
Removing the carbon brushes holder<br />
1. Unscrew the two screws M8 x 45, spanner size 10 mm, (Figure 28/2) <strong>and</strong><br />
detach the sleeve (1).<br />
2. Remove both connection cables from the connection lugs of the carbon<br />
brushes holder (Figure 28/3). The connection cables are coded by the width<br />
of the connection lugs <strong>and</strong> therefore protected against interchanging (see<br />
Figure 29).<br />
3. Unscrew the fastening screw of the carbon brushes holder <strong>and</strong> detach the<br />
carbon brushes holder (Figure 28/3).<br />
1<br />
2<br />
3<br />
Figure 28<br />
Removing the carbon brushes holder<br />
Issue date: August 2002 89
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