December 2020
Installation, Operation and Maintenance Manual
MAN 608 Rev. 5
Operation and Use
3
1
2
5
S
C
R
P
4
18
Section 3: Operation and Use
Hydraulic connection to
the hydraulic control panel
Figure 14
OLGAS with hydraulic power pack
•
Close the stop valve 5-S before start with manual operation
•
Actuated the pump 5-P until to reach the complete operation
•
Check the correct operation of the actuator through the visual position indicator.
•
Open the stop valve 5-S to operate to fail-safe position
•
Note that the stop valve 5-S must be in open position to allow the operation with
hydraulic supply. (see Section 7.2, Figure 31: sectional drawing for hydraulic
control unit MHP)
1. Scotch yoke mechanism
2. Hydraulic cylinder
3. Spring cartridge
4. Hydraulic manual override
5. Hydraulic manual selector
S = Stop value
C = Check value
P = Handpump
R = Relief value
O = Oil tank
Figure 15