ABB HT606839 - Fig. 27: Cleaning the Filter Silencer (2); Table 15: Tightening Torque (81272); Table 16: Tightening Torque (81273)

Operation Manual / A170-M.. - A175-M..
7 Periodic maintenance / 7.2 Cleaning the filter silencer
© Copyright 2021 ABB. All rights reserved. HZTL4033_EN Rev.H July 2021
Fig.27: Cleaning the filter silencer (2)
u Push the connecting rods(81269) through the lugs of the cover grids(81266).
u Connect the connecting rods(81269) with the screws(81272). While tightening the
screws(81272), make sure that the connecting rods(81269) lie correctly in the slots on the
filter silencer body(81135). Now alternately tighten the screws(81272) up to the following
maximum tightening torque:
Screw Tightening torque [Nm]
81272 20
Table15: Tightening torque(81272)
u Fit lock nuts (81273) on screws (81272) and tighten with the following tightening torque:
Lock nut Tightening torque [Nm]
81273 40
Table16: Tightening torque(81273)
u If present, fit filter ring(81265).
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