ABB HT606752 - Page 71

Operation Manual / A150-M56/66/57/67 - A155-M..
7 Periodic maintenance work / 7.4 Cleaning components mechanically
© Copyright 2021 ABB. All rights reserved. HZTL4032_EN Rev.R August 2021
(see Fig.31: Cleaning the filter silencer →68)
Dismantling and cleaning the cover grid(81266)
u Loosen the tension bands(81270).
u Remove and clean cover grid (81266).
Cleaning the absorption segments(81136)
u Pull out and bend up the sheet-metal coverings(81137), and remove the absorption seg-
ments(81136).
u Clean the absorption segments.
When cleaning, note that the absorption segments may only be cleaned lightly with pres-
surized air, a soft brush or a moist cleaning cloth.
u Have any heavily contaminated absorption segments replaced by an ABB Turbocharging
Service Station.
Fitting the filter silencer
u Insert the absorption segments(81136) into the sheet-metal coverings(81137).
u Bend the sheet-metal coverings(81137) back to their original shape and insert into the
slotted guides in the filter silencer body(81135).
u Fit the cover grid(81266).
u Fit the tension bands(81270) and tighten them at the locks(81271).
Any tension bands that have become damaged must be replaced.
u Fit the filter ring(81265), if present.
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