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WARNING
Risk of damage due to incorrect alignment!
Support the actuator with the lifting equipment until the con-
nection bolts are completely tightened.
Make sure to align correctly the dowel pins or the spigot, if
any.
Align the valve stem/coupling to the actuator's bore.
Carefully lower the actuator and engage the valve stem/ cou-
pling into the actuator's bore without forcing and driving the
actuator into the position only with the weight of the actuator
itself.
Fix the actuator over the valve fl ange/bracket with the con-
nection bolts.
Tighten the connection bolts at the correct tightening torque
as per ISO 5211.
EB 31a-23_EN
Edition: November 2021
Specifi cations subject to change
Mounting and assembly
5-3
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