ABB HT604643 Operation Manual page 57

Operation Manual / A170-M.. - A175-M..
7 Periodic maintenance / 7.2 Cleaning the filter silencer
Cleaning the absorption segments
(see Fig. 26: Cleaning the filter silencer →54)
Loosen and remove lock nuts (81273).
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Loosen and remove screws (81272) to the connecting rods (81269).
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Remove connecting rods (81269).
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Remove and clean cover grid (81266).
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Pull out insert units (E), bend up sheet-metal coverings (81137) and take out absorption
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segments (81136).
Clean the absorption segments (81136).
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When cleaning, note that the absorption segments (81136) must only be cleaned lightly
with pressurized air, with a soft brush or a moist cleaning cloth.
Have any heavily contaminated absorption segments and filter rings as well as damaged
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connecting rods replaced by an ABB Turbocharging Service Station.
Fitting the cover grids and absorption segments
(see Fig. 26: Cleaning the filter silencer →54)
CAUTION
Penetration of dirt and foreign particles
Any penetration of dirt and foreign particles into the compressor can dam-
age it.
Fit the connecting rods (81269) correctly in the slots on the filter silencer
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body (81135).
It must not be possible to rotate or move the cover grid (81266) after as-
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sembly.
Check the position and alignment of the connecting rods during and after
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assembly.
Assemble the insert units (E) by inserting the absorption segments (81136) into the
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sheet-metal coverings (81137).
Bend the sheet-metal coverings (81137) back into the original shape.
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Insert the insert units (E) into the slotted guides in the filter silencer body (81135).
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If a cleaning container is attached to the filter silencer (option, depending on turbocharger),
the water injection pipe must now be reinstalled.
Place the cover grids (81266) evenly and in the correct position.
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© Copyright 2020 ABB. All rights reserved. HZTL4033_EN Rev.G December 2020