Curtiss-Wright | Tritex II DC Rev. J PN49220 2/8/2016
60
1.) Use a brush to work approximately 0.5 in
3
of grease for every
3 inches of stroke length into the roller screw cylinder. Be sure to
cover all of the threaded areas of the cylinder.
2.) Use a brush to work grease in to the roller screw assembly. Be
sure to cover all the threaded surfaces of the screw assembly.
This can be accomplished by applying grease to a few places on
the roller screw assembly and rotating the components
repeatedly in both directions to work the grease into the
assembly.
3.) Force grease into the front of the thrust bearing assembly. Make
a concerted effort to insure that the grease is well worked in.
Grease must reach the bearing just behind the bearing that is
visible as well. Use the following amounts of grease for each size
roller screw and bearing:
Tritex 60:
0.5 in
3
Tritex 75 & 90:
0.75 in
3
Tritex 115:
1.0 in
3
Reassembly
1.) Rethread the roller screw into the internally threaded cylinder
(ITC). It is a multiple start screw, and this is not always easy. DO
NOT FORCE THE ROLLER SCREW INTO THE CYLINDER. It
is best to have the actuator vertical with the open end of the
roller screw cylinder facing up. Position the roller screw above
the cylinder so that it is aligned axially with the ITC. Slowly turn
the roller screw 1/4 to 1/2 a turn counterclockwise with it in
contact with the ITC. This will help to align the threads on the
roller screw with the threads in the ITC. Rotate the roller screw
clockwise and it should begin to thread into the cylinder. If it does
not turn freely, remove it and begin again. When threading the
screw into the cylinder, it will roll freely into the actuator. When it
reaches the portion of the cylinder that contains the motor
magnets, the roller screw will be more difficult to turn because of
the magnetic field of the magnets. THIS IS NORMAL. Continue
to thread the roller screw into the cylinder. When it reaches the
bottom, it will become difficult to turn and the motor and bearings
will begin to rotate with it. The roller screw is now fully inserted
into the cylinder.
2.) Place a small amount of seal lubricant on the inside surface of
the seal/bushing assembly.
Содержание Tritex II DC Series
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