BIFFI FCB Series, Manual

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Service Instructions
VCIOM-15313-EN Rev. 1 March 2022
5
Section 1: Introduction
Introduction
1.10.3 Good instrument practices are also recommended. Clean/dry regulated
pneumatic pressure is essential for long service life and satisfactory operation.
It should be noted that new pneumatic lines often have scale and other debris in
them and these lines should be purged of all foreign material.
NOTE:
Scale and debris can damage control valves, solenoids, seals, etc.
1.11 Actuator Startup
1.11.1 Prestart-up checks
a. Unit has been mounted on valve properly. Gear flange mounting bolts,
stem key and setscrew(s) are installed and secured
b. No tubing damaged or accessories dislodged during shipping
or installation
c. Indicated position confirms valve position
d. All switching valves in normal operating position as per
Schematic/Instructions
1.11.2 Check Connections
a. Pneumatic/hydraulic components connected as per schematic enclosed
or in service manual supplied
b. Pneumatic supply connected to identified ports
c. Electrical connections terminals are secure
d. Wiring as per enclosed diagram or service manual supplied
1.11.3 When actuator is first put into service it should be cycled with regulated
pneumatic pressure. This is necessary because the seals have been stationary,
causing them to take a “set”. Therefore, the actuator should be operated through
several cycles, exercising the seals, resulting in a service-ready condition.
1.11.4 The actuator speed of operation is determined by a number of factors including:
a. Power supply line length
b. Power supply line size
c. Power supply line pressure
d. Control valve and fitting orifice size
e. Torque requirements of the valve
f. Size of the actuator
g. Setting of speed controls