Operation Manual / Power2 845-M / 4.1 Low-pressure stage
4 Disassembly and assembly / 4.15 Installing the filter silencer
© Copyright 2018 ABB. All rights reserved.
HZTL4068_EN
Revision A
March 2018
4.15
Installing the filter silencer
Fig. 29: Installing the filter silencer
Part number
Thread and tightening torque
72004
M14
130 Nm
72004 (nuts that are difficult to access)
Pre-tightening torque 60 Nm
Tightening torque angle 60° ±5°
77022
M14
130 Nm
Table 15: Tightening torque (72004 / 77022)
1. Fit sleeves (77023) and nuts (77022) in accordance with position of filter silencer and
tighten nuts (77022).
2. Remove the two opposing nuts (72004) and washers (72003) that were used to secure
the wall insert.
3. Fit the swivel lifting eye (90231) to the silencer (81000). Attach the lifting gear to the
swivel lifting eye (90231) and loop through the eyelets at the rear of the filter silencer
(81000).
4. Fit the filter silencer.
5. Fit nuts (72004) and washers (72003) and tighten nuts (72004).
u
If present: Connect supply line for compressor cleaning to filter silencer.
u
Reinstall dismantled insulation.
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