December 2019
Installation, Operation and Maintenance Manual
MAN-02-05-62-0742-EN Rev. 0
Emergency operation of double acting actuator with key
Actuators that can be opened by emergency operation actuator: BHH 125 - BHH 500
1. Open the crossover valve by turning counter clockwise.
2. Use the emergency operation key on the actuator.
3. Open crossover valve at the actuator and turn the
key counter clockwise to open valve and clockwise to
close valve.
4. After emergency operation by key the crossover
valve is closed.
8.3
Emergency Operation of BHH Actuators
Oil pressure loss necessitates emergency operation of the actuator. The emergency
operation can be carried out by hand pump for all BHH models and alternatively by
key/adjustable spanner for BHH 125 to BHH 500.
NOTE:
Emergency operation by means of hand pump unit is solely allowed at 0 bar hydraulic in
port A and B.
NOTE:
Stationary hand pumps are also available in different types for emergency operation.
8.3.1
Opening by Emergency Operation Key BHH 125 to BHH 500
25
Operating
Section 8: Operating