MTS Series 247 Actuators User Manual
Page 29
Installing Components on the Actuator
Series 247 Actuators
Installation
29
Swivels
Swivels and pedestals perform the same function. They anchor the actuator
between a reaction mass and the test specimen or test fixture. The swivels allow
the actuator to pivot and tilt (see the Series 249 Swivels product information
manual, part number 011-775-600). And a pedestal anchors the actuator with no
movement. These devices are designed to be attached to the base of the actuator
or the actuator rod. And they can be used in combinations of each other.
Spiral washers
Spiral washers preload the elements of the force train to provide backlash-free
connections. They are typically used to attach swivels and force transducers to
the actuator. If spiral washers are used, see
on page 30 for
information about installing and removing fixtures.
Force transducers
Force transducers (also called load cells or force sensors) are often installed in
the force train of the actuator. Force transducers are not required components.
Manifolds
The actuator requires a manifold to distribute hydraulic fluid to the servovalve(s)
and the hydraulic ports of the actuator. Other components may be mounted to the
manifold (such as differential pressure transducers, special piping, etc.). The
manifold is usually installed at the factory.
Servovalves
A servovalve is installed on a manifold that is mounted to the actuator. The
servovalve is usually installed at the factory. See the appropriate product
information manual for servovalve installation information.