Operating Instructions
BG-250-230/60
Maintenance October
2005
7.6 Flexible
Coupling
Fig. 7.3 (electric unit shown)
The flexible coupling (5) is a very important component. Depending on the
application, the coupling is subject to high thermal and dynamic loads; therefore
the service life of the coupling depends on the surface to be treated. That means
that the surface structure, the hardness and also the duration of the grinding
process have a great influence on the life of the coupling.
When replacing the diamond disc, check the condition of the
coupling. If the coupling is cracked or is sitting on an angle with no
load on the disc, it should be replaced.
Immediately shut down the machine if unusual vibrations or noises are
experienced. Typically the cause of the unusual operation is a defective coupling
or debris trapped in the coupling.
Disassembly:
1 Unscrew the upper hexagonal head screws (4) and remove the adapter for
grinding disc (8). Check the conditions of the screws and of the spacer tubes
(6).
2 Unscrew the hexagonal head screws (7) and the nuts fitted at the bearing-unit
(2). Check the condition of the screws (4) and of the spacer tubes (6).
Always replace all worn or damaged parts.
© Copyright Blastrac
Revision (A) 10-27-05
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