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Operation Manual / 4 Product description / A150-M56/66/57/67 -

A155-M..

6 Periodic maintenance work / 6.5 Changing the absorption element

6.5 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.29: Disassembling the absorption element

1. Remove the filter silencer (see Fig.41: Removing the uncoupled filter silencer →78).

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).

Page 57 / 171

ABB HT604877 Instruction Manual

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