Exlar Curtiss-Wright Tritex II Series, Installation And Service Manual

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Curtiss-Wright | TRITEX II AC 75 Rev. K PN61928 7/12/2022 71
3. Carefully slide the face plate and bushing/seal assembly
over the actuator rod end, while guiding the tie rods through
the holes in the rear end cap of the actuator. The seal is a
tight fit on the rod end. Take care not to damage the seal on
the threads of the extending rod. Standard Tritex rods have
a chamfer to provide a lead in for replacement of the seal
and bushing. Be sure that the faceplate seats completely
and squarely on the front of the actuator. The inner surface
of the faceplate provides the pre-loading for the bearings,
and it is important that it is properly seated.
Units with a Front Flange
Replace the faceplate as described above. Remount front
flange by sliding tie rods through the holes in the faceplate and
through the holes in the rear end cap. Pilot the flange on the pilot
diameter located on the front of the faceplate.
4. Replace the rear tie rod washers and nuts and tighten to the
proper torque. Tighten the nuts simultaneously by partially
tightening each in an opposing corner pattern until each is
torqued to the rated value as follows.
Tritex 75: 90 lbf-in (7.5 lbf-ft, 10.16 N-m)
5. If your actuator has an external anti-rotate mechanism, slide
the rod or rods of the anti-rotate mechanism through the
front flange and into the guide bushing or bushings mounted
to the rear of the flange. Position the extending rod so that
the wrench flats are parallel to the long side of the flange.
Slide the cross member assembly of the anti-rotate
mechanism over the end of the rod and onto the wrench
flats. Tighten the two screws that clamp the assembly to the
actuator rod.