Curtiss-Wright | Tritex II AC 90, 115 Rev. X PN39892 7/12/22
MECHANICAL INSTALLATION
Mounting and Operating Considerations
Every effort should be made to minimize misalignment of the output
shaft in all actuators (linear and rotary) and especially misalignment that
results in side loading on linear actuators. Any misalignment will
decrease the life of the components within the actuator or create
problems with external components or adversely affect performance.
Excessive side load on the output rod of the actuator will
dramatically reduce the life of the actuator and should be
avoided completely. Side load can be caused from misalignment or
loading that is not in line with the actuator output rod.
Stroke length and centering must be carefully considered to avoid
hitting physical travel limits in linear actuators, including over travel in
fast motion profiles. Homing to end of travel may be done at very slow
speed and limited force, but homing manually or to a limit switch, or
maintaining continuous Logic Power or using the absolute position
feedback option to avoid frequent homing should be considered.
Do not exceed the physical travel limits of T2M Series
Actuators. Doing so will result in an internal end-crash that
will physically damage the roller screw and the internal components
of the actuator.
Lubrication
The T2M and T2X Series linear actuators are shipped from the factory
fully greased and ready for installation. Exlar recommends using Mobilith
SHC 220, a high performance, extreme-pressure grease. The unique
physical properties of the synthetic base oil provide outstanding
protection against wear, rust, corrosion and high or low-temperature
degradation. Mobilith SHC allows for very low starting and running torque
values. Its operating range is -40° C to 177° C (-40° F to 350° F).
Note: If the actuator with which you are working has a preloaded
follower (PF option), do not remove the nut or screw. Contact Exlar and
arrange to have maintenance and/or re-lubrication performed on the
actuator by an authorized Exlar repair facility.
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