ABB HT562580 Operation Manual page 69

Operation Manual / 4 Product description / A130-H.. - A140-H..
5 Operation and service
5.2.5 Other service work
If a protective grid is installed in the radial or axial gas outlet casing (61001) by ABB Turbo
Systems:
Figure 21: Replacing the protective grid
Remove the protective grid (61205) after 50000 hours and replace it with a new one.
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Pre-mix gas engines
Replace the protective grid of pre-mix gas engines after 20000 hours
Applications on pre-mix gas engines result in a high thermo-mechanical load
on the protective grid. To ensure proper functionality of the protective grid
CAUTION
even under these conditions, the protective grid of pre-mix gas engines must
be replaced after 20000 hours.
Replace the protective grid of pre-mix gas engines after 20000 hours.
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Revision C September 2015