4.
Pre-tension the actuator with an emergency manual actuator (H) (material no.
221.310.74).
5.
Remove the clamp connection (46) between actuator and lantern.
6.
Loosen the spacer nut (10) using an open-ended wrench.
7.
Grip the valve disk at the width across flats (15.1) and loosen the actuator (A)
with approx. 3 turns using a belt wrench.
8.
Remove the emergency manual actuator (H).
Spring-opening valve
Carry out the following steps:
1.
Vent the actuator.
®
The valve disk is lowered.
2.
Remove the clamp connection (46) between drive and lamp.
Fig.23
3.
Loosen the spacer nut (10) using an open-ended wrench.
4.
Grip the valve disk at the width across flats (15.1) and loosen the actuator (A)
with approx. 3 turns using a belt wrench.
5.
Remove the clamps (R) between the control top and the actuator.
Maintenance
Disassembling Valve U
430BAL008302EN_10
16.03.2023
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