ABB HT571908 Operation Manual page 70

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Maintenance
Cleaning components mechanically
Cleaning the absorption segments
Loosen the tension bands (81270).
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Remove the cover grid (81266).
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Pull out the sheet-metal coverings (81137), bend them up and remove
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the absorption segments (81136).
Clean the absorption segments (81136).
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During cleaning, ensure that the absorption segments (81136) are only
cleaned with a mild jet of compressed air, soft brush or a damp cloth.
Have absorption segments which are heavily contaminated replaced
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by an official ABB Turbocharging Service Station.
Fitting the filter silencer
Insert the absorption segments (81136) into the sheet-metal coverings
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(81137).
Bend the sheet-metal coverings (81137) back into their original shape
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and insert them into the slot guides in the silencer body (81135).
Fit the cover grid (81266).
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Fit the tension bands (81270) and apply tension at the locks (81271).
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Damaged tension bands must be replaced with new ones.
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If provided, fit the filter ring (81265).
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Operation Manual / TPS44-F.. - TPS61-F..
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5.4 Page 68