12
August 2016
Installation and Operation Manual
Part Number: VA001-507-32, Rev. 1
Section 2: Installation
Installation
CAUTION:
Always use the hand pump to move the actuator off the stop before attempting to turn
the adjusting screw.
2.6.5 With the closed position stop set, use the hand pump to move the actuator
to the other end of the stroke and check the stop position. If adjustment is
required, slowly open Manual Bypass Valve (Lockable) (19) just enough to allow
the actuator to spring-return off the stop before adjusting.
2.7
Hydraulic Fluid
Bettis Electro-Hydraulic Operated actuators are shipped with the reservoir filled to
operation level. Before commissioning and periodically afterwards, check to see the
fluid level is correct. The oil fill cap is provided with a dipstick marked with a green and a
red mark. When the optional accumulator is drained of fluid and the actuator is at Fail-
safe Position, the oil should be at the green mark. The reservoir also has a sight gauge
for the purpose of seeing fluid is present. Should fluid need to be added or replaced, use
only factory approved hydraulic fluid.
This specification covers hydraulic fluids which are approved by engineering for use in
Bettis Electro-Hydraulic Operated actuator in a temperature range from -40°F to 140°F
(-40°C to 60°C).
2.7.1
Approved Fluids
•
Standard Fluid [use with -20°F to 140°F (-29°C to 60°C) applications]
—
ConocoPhillips Megaflow™ AW HVI Hydraulic Oil 22
—
Shell Tellus S2 V 22
—
Mobil DTE 10 Excel™ 22
•
Low Temperature Fluid [use with -40°F to 140°F (-40°C to 60°C) applications
—
Mobil Univis™ HVI 13
Although other brands of fluid matching the same specifications may be used, to
maintain the warranty and ensure trouble free operation, always check with the factory
before substituting any other fluid.
Содержание Bettis EHO
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