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Operation Manual / Power2 650-M / 4.2 High-pressure stage
2 Removal and installation / 2.3 Installing the high-pressure stage
© Copyright 2019 ABB. All rights reserved.
HZTL4066_EN
Revision A
March 2019
Tightening pressure screws
Fig. 9: Tightening pressure screws
1. Screw in pressure screws crosswise by hand until reaching the stop.
2. Tighten pressure screws crosswise to 50 % of the tightening torque specified in the
table.
3. Tighten pressure screws crosswise to 100 % of the tightening torque specified in the
table.
4. Work in a circle to tighten all pressure screws to 100 % of the tightening torque specified
in the table.
5. Tighten pressure screws to 100 % in 5 … 7 rounds until the required residual tightening
angle of < 20° is achieved.
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