Installing a fixture to the actuator, Installing a fixture to the actuator 26 – MTS Series 242 Actuators User Manual
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Series 242 Actuator Product Information
26
Installing a Fixture to the Actuator
Installation
See the system assembly drawing, system functional drawing, and console
assembly drawing (typically located in a System Reference manual supplied with
your system documentation) for information about hydraulic and electrical
connections.
Note
Actuators mounted in a load unit should not be removed from the load
unit. Alignment should not be performed in the field.
Servovalves
A Series 252 Servovalve is typically mounted directly to the actuator. See the
Series 252 Servovalve Product Information manual (MTS part number 011-182-
906) for servovalve installation information.
Installing a Fixture to the Actuator
The actuator is equipped with an upper end cap and a pedestal base which has
from two to eight threaded mounting holes. Fixtures can be mounted to the
actuator piston rod, the upper end cap, or the pedestal base.
Mounting to the piston
rod or end cap
The front end cap of the actuator contains four threaded holes which may be used
for mounting the actuator to a load frame or other fixture. The following figure
shows the mounting hole specifications. Tighten the mounting bolts to 17.6 N·m
(13 lbf·ft).
Piston Rod and Front End Cap Mounting Holes
The piston rod of the actuator also contains a center position threaded hole. This
mounting hole is typically used to attach a swivel mounting accessory or a
specimen supporting fixture (shaker head or vibration table) to the actuator.
Mounting to the
pedestal base
The pedestal base has four unthreaded mounting holes (one in each corner).
These mounting holes may be used to bolt the actuator directly to a reaction mass
or other fixture. Do not tighten the mounting bolts to more than 15 N·m (11
lbf·ft). The pedestal base also contains a center position threaded hole which may
be used to attach a swivel mounting accessory.
1/2-20 UNF-2B x 1.5 in.
(38.1 mm)
4 holes, 5/16-18 UNC x 0.5 in
(12.7mm) deep, equally spaced on a
2.5 in (63.5 mm) diameter
Front
End Cap