11
L min.
L max
F01-2000/150 24 16
F01-2000/300 24 16
F01-2000/600 29 18
BIFFI F01-2000 ELECTRIC ACTUATOR
INSTRUCTION AND OPERATING MANUAL
5 OPERATING THE F01-2000
5�1 OPERATION BY HANDWHEEL
To manually operate the actuator it is sufficient
to turn the handwheel in the desired direction.
The manual operation is always possible
without any clutching mechanism.
5�2 SETTING OF MECHANICAL STOPS
Necessary equipment: a 3 mm hexagonal key.
According to the type of valve to be operated,
the actuator can be stopped by means of torque
or position limit switches, as detailed in the
following list:
Valve type: metal seated butterfly valve
Closing: torque
Closing: position
Valve type: ball valve, butterfly valve, plug valve
Opening: position
Opening: position
Before any setting operation, it is necessary to unscrew the adjustable mechanical stops.
Hold the lock nut and remove the mechanical stop protection by unscrewing it.
Remove the seal washer.
Hold the mechanical stop by means of a suitable Allen key and in the same time loosen the lock
nut by one turn.
Screw the closing or opening mechanical stop until it reaches the end stroke.
From here unscrew it by half a turn and lock it with the lock nut.
Check the protrusion of the mechanical stop:
for a stroke of 90° ± 5°, length “L” should be within the following values:
Size L max� (mm) L min� (mm)
WARNING
Do not manually operate the actuator with devices
other than the handwheel. Using cheater bars,
wheel wrenches, pipe wrenches, or other such
devices on the actuator handwheel may cause
serious personal injury and/or damage to the
actuator or valve.
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