Operation Manual / Power2 650-M / 4.1 Low-pressure stage
4 Disassembly and assembly / 4.16 Installing the filter silencer and in-
jection ring
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HZTL4065_EN
Rev.C
March 2020
4.16
Installing the filter silencer and injection ring
Fig. 30: Installing the injection ring and 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 angle 60° ±5°
77022
M16
150 Nm
Table 16: Tightening torque (72004 / 77022)
1. Secure injection ring (73000) for blowby to lifting gear with swivel lifting eye (90231).
2. Fit injection ring (73000) for blowby and remove lifting gear.
3. Secure injection ring (73000) for air to lifting gear with swivel lifting eye (90231).
4. Fit injection ring (73000) for air and remove lifting gear.
5. Fit sleeves (77023) and nuts (77022) in accordance with position of filter silencer and
tighten nuts (77022).
6. 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 silen-
cer (81000).
7. Fit the filter silencer.
8. Fit nuts (72004) and washers (72003) and tighten nuts (72004).
u
If present: Fit supply line for compressor cleaning to filter silencer.
u
Reinstall dismantled insulation.
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