ABB HT611036 - Changing the Absorption Element; Fig. 37: Disassembling the Absorption Element

Operation Manual / A150-M56/66/57/67 - A155-M..
7 Periodic maintenance work / 7.5 Changing the absorption element
© Copyright 2022 ABB. All rights reserved. HZTL4032_EN Rev.S February 2022
7.5 Changing the absorption element
The absorption element(81148) in uncoupled filter silencers must be replaced every 12000
hours of operation.
Disassembling the absorption element
Fig.37: Disassembling the absorption element
1. Remove the filter silencer (see Fig.49: Removing the uncoupled filter silencer →100).
2. Dismantle the hexagon-head screws(81152) with washers(81153) and mounting
plate(81149).
3. Remove the socket screws(81154), roll pins(81151), flanges(81145 / 81146) and absorp-
tion element(81148).
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