Operation Manual / Power2 850-M / 4.1 Low-pressure stage
4 Disassembly and assembly / 4.18 Table of tightening torques
© Copyright 2020 ABB. All rights reserved.
HZTL4062_EN
Rev.C
July 2020
Application of special key for nuts that are difficult to access
u
Attach the special key (90250 / 91250 / 90251 / 91251) to the torque spanner by using the
adapter (90249 / 91249).
u
Use the special key in an angle range between 30° and 90°.
u
Use the special key only for nuts that are difficult to access and observe the reduced
torque.
4.18
Table of tightening torques
Fig. 31: Overview of tightening torques
The following tightening torques [Nm] must be observed for the designated bolted connec-
tions:
Part number
Thread and tightening torque
42087
M12x60
80 Nm
56017
M8 Tx40
25 Nm
61037
M16
250 Nm
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