ABB HT604449 - Fig. 35: Disassembling the Absorption Element; Changing the Absorption Element

Operation Manual / A150-M56/66/57/67 - A155-M..
7 Periodic maintenance work / 7.5 Changing the absorption element
© Copyright 2021 ABB. All rights reserved. HZTL4032_EN Rev.Q January 2021
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.35: Disassembling the absorption element
1. Remove the filter silencer (see Fig.47: Removing the uncoupled filter silencer →96).
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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