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Installation, Operation and Maintenance Manual
MAN 707 Rev. 3
Section 3: Operation and Use
Operation and Use
March 2022
3.2
Residual Risks
!
WARNING
The actuator has parts under pressure. Use due caution. Use individual protections
provided for by the laws and provisions in force.
3.3
Operations
(*refer to specific document: operating diagram furnished)
3.3.1
Emergency Manual Operation MHP (Optional*)
NOTICE
Refer to applicable control schematic in supplied documentation.
The HLAS-C actuators can have an emergency manual override in addition to the local and/
or remote control system which controls the oil supplied by a power pack for the “normal”
actuator operation.
The emergency manual override mounted on the actuator consists of a hydraulic manual
override and a manual selector to choose the actuator “Normal operation” with oil supply
from a power pack, or the “Emergency manual operation”. The manual override will be
OMFB for carbon steel material or dedicated model engineered by Biffi for stainless
steel material.
