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Operation Manual / Power2 650-M / 4.2 High-pressure stage
2 Removal and installation / 2.2 Removing the high-pressure stage
© Copyright 2019 ABB. All rights reserved.
HZTL4066_EN
Revision A
March 2019
2.2
Removing the high-pressure stage
Preparing for removal
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Disconnect all pipes according to the instructions of the enginebuilder.
Fig. 1: Removing the high-pressure stage
1. Loosen screws (72013) between bellows (82300) and compressor casing (72000) and re-
move with washer (72014). The air suction branch (82000) with the bellows does not have
to be dismantled from the air line. To protect the bellows, the high-pressure stage must
not be lifted up together with the radial air suction branch and the bellows.
2. If present: Unplug the plug to the speed sensor (86505) and secure the rolled-up cable (2
m) to the high-pressure stage. This protects the plug from being crushed.
3. Treat the threads of the threaded rods (42191) with penetrating oil and allow it to take
effect. Do not oil the pressure screws of the clamping nut (42201).
4. Secure lifting gear to high-pressure stage with two swivel lifting eyes (01).
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Loosen the clamping nuts (42201) in accordance with the following section.
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