ABB A170-M Series - 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 2022 ABB. All rights reserved. HZTL4033_EN Rev.K January 2022
CAUTION
Penetration of dirt and foreign particles
Any penetration of dirt and foreign particles into the compressor can dam-
age it.
u Fit the connecting rods (81269) correctly in the slots on the filter silencer
body (81135).
u It must not be possible to rotate or move the cover grid (81266) after as-
sembly.
u Check the position and alignment of the connecting rods during and after
assembly.
Fig.27: Cleaning the filter silencer (2)
u Place cover grids(81266) evenly and in the correct position.
u Push connecting rods(81269) through the lugs of the cover grids(81266).
u Connect the connecting rods(81269) with the screws(81272). When tightening the
screws(81272), make sure that the flattened ends of the connecting rods(81269) are cor-
rectly positioned on the edge of the filter silencer body(81135).
u Tighten screws(81272) alternately and evenly. Observe tightening torque
Screw Tightening torque [Nm]
81272 20
Table15: Tightening torque (81272)
u Fit the lock nuts(81273) on the screw(81272). Observe tightening torque.
Lock nut Tightening torque [Nm]
81273 40
Table16: Tightening torque (81273)
u If present: Fit the filter ring(81265) Cleaning the filter silencer →54.
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