Joyce DIA201 - ACME 1 diameter, .25" pitch, .50 lead"" - Manual (Page 8)

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2-7 Assembly of Traveling Nut Actuator
1. Rest the actuator sleeve (1) on a work surface with the flange downward.
2. Install the worm shaft bearing (7) in the sleeve (1) by passing it through the wide opening at
the side of the sleeve. Position it over the worm shaft opening. Seat the bearing with a tool.
3. Rotate the sleeve (1) so it rests on the base and install the lower thrust bearing (2) and O-ring
(16).
4. Set the sleeve aside and continue.
5. Install the dowel pin (14) in the end of the screw (11).
6. Thread the traveling nut (12) on to the jackscrew (11). The flange of the traveling nut should be
oriented toward the dowel pin (15).
7. First Insert the seal (16 TN), then the upper thrust bearing (2), into the sleeve cap (4).
8. Assemble the key (13), worm gear nut nut (3) and retaining ring (10) to the end of the
jackscrew ( 11).
9. Insert the above assembly into the actuator sleeve (1).
10. Thread the sleeve cap (4) into the actuator sleeve (1) and tighten.
11. Insert the worm shaft (6) through the sleeve (1) toward the flange. Inside the sleeve, this will
pass in front of the already assembled worm gear nut (3) and through the previously installed
worm shaft bearing (7).
12. Install the other worm shaft bearing (7) over the end of the worm (6). Seat this in place.
13. Install the retaining ring (8).
14. Check that the worm shaft (6) rotates when turned by hand. Adjustments to change the
stiffness of rotation of the worm shaft are made by loosening or tightening the threaded
connection between the sleeve and the sleeve cap (4).
15. Spot drill through the threaded holes in the sleeve (1) and insert set screws (5).
16. Insert and seat the two worm shaft seals (9). Exercise care so the seals are not damaged on
any sharp surfaces. Note: These seals are difficult to remove. Once they are removed, they
must be replaced.
17. Use the key (19) to attach half the coupling (18) to the worm shaft.
18. Attach the other half of coupling (18) to the motor shaft.
19. Join the motor to the integrated actuator via the coupling. Align the motor mount holes to the
mounting holes on the flange. Use lock washers and screws (20, 21) to fasten the motor to the
integrated actuator
20. Insert the grease fitting (19) into the sleeve and partially fill the cavity with Ronex Extra Duty 1
grease.
21. Insert the pipe plug (22) in the sleeve.