Operation Manual / A100-L
7 Periodic maintenance / 7.2 Cleaning the filter silencer
© Copyright 2021 ABB. All rights reserved.
HZTL4034_EN
Rev.T
December 2021
If present: Clean the filter ring (81265)
u
Remove the filter ring.
u
Clean the filter ring as required or every 500 hours of operation, and replace it after the
fifth cleaning process at the latest.
Contamination of the filter ring depends on the degree of purity of the sucked-in air.
u
Rinse the filter ring with water and mild detergent or, in the case of heavy contamination,
soak and carefully push through. Rinse in cold water. Avoid high mechanical loads (water
jet).
u
Let the filter ring dry completely before assembling.
u
Dirty water and mild detergent must be disposed of in compliance with locally applicable
regulations.
Cleaning the absorption segments
u
Loosen the tension bands (81270) at the locks (81271) and remove them along with the
cover grid (81266) and connecting strips (81268)
(see Fig. 16: Layout and overview of fil-
u
Pull out insert units (E).
u
Bend up the sheet-metal coverings (81137) and remove the absorption segments (81136).
u
Clean the absorption segments (81136).
When cleaning, note that the absorption segments may only be cleaned lightly with pres-
surized air, with a soft brush or a moist cleaning cloth. Otherwise there is a danger of
damage or changing of the shape.
u
Replace heavily contaminated absorption segments (81136) and any damaged connecting
strips (81268) with original parts from ABB.
Fitting the filter silencer
u
Insert the absorption segments (81136) into the sheet-metal coverings (81137).
u
Bend the sheet-metal coverings (81137) back into the original shape.
u
Insert the insert units (E) into the slotted guides in the filter silencer body (81135).
u
Fit the cover grid (81266) and connecting strips (81268) on the filter silencer body (81135).
u
Guide the tension bands (81270) through the eyelets of the connecting strips (81268).
u
Tighten the tension bands (81270) at the locks (81271).
u
Any damaged tension bands must be replaced.
u
Fit filter ring (81265), if present.
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