Operation Manual / Power2 850-M / 4.1 Low-pressure stage
4
Disassembly and assembly
Page 33 / 49
© Copyright 2015 ABB. All rights reserved.
HZTL4062_EN
Revision -
December 2015
4.15
Installing the filter silencer
Figure 29: Installing the filter silencer
Part number
Thread and tightening torque
72004
M16
200 Nm
72004 (nuts that are difficult to access)
Pre-tightening torque 60 Nm
Tightening torque angle 60° ±5°
77022
M16
200 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).
If present: Connect supply line for compressor cleaning to filter silencer.
Reinstall dismantled insulation.
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