Joyce HBIA51 - Ball Screw 1 diameter, 1.0" lead" - Manual (Page 7)

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3. Rotate the sleeve (1) so it rests on the base and install the lower thrust bearing (2) and O-ring
(22)
4. Set the sleeve aside and continue.
5. Install the ball nut assembly (12) onto the end of the screw (11). This must be carefully
transferred from the mandrel onto the ball screw so the ball bearings inside do not escape.
Orient the square flange toward the threaded end of the ball screw. Attach the retainer (17) to
the end of the ball screw using the screw and washer (18 and 19).
6. Insert the retainer end of the ball screw (11) into the open end of the translating tube (13
assembly).
7. Secure the traveling nut (12) into the end of the translating tube (13) using setscrews (26).
8. ? Align the four holes in the translating tube (13) with the holes in the ball nut assembly (12).
Insert the setscrews (27) through the translating tube and ball nut assembly. Be careful not to
insert them too deep. They should not contact the ball screw.
9. The protection tube (4) is a complete assembly.
10. Assemble the key (14), worm gear nut (3) and retaining ring (10) to the threaded end of the
ball screw (11).
11. Insert the above assembly into the actuator sleeve (1).
12. Assemble and seat the seal (15) into the protection tube (4). It fits in the end that is not
externally threaded.
13. Pass the plain end of the protection tube assembly (4) over the clevis end of the translating
tube assembly and thread it into the actuator sleeve (1).
14. 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).
15. Install the other worm shaft bearing (7) over the end of the worm (6). Seat this in place.
16. Install the retaining ring (8).
17. Check that the worm shaft (6) rotates when turned by hand. Adjustments to the stiffness of
rotation of the worm shaft are made by loosening or tightening the threaded connection
between the sleeve and the protection tube.
18. Spot drill through the threaded holes in the sleeve (1) and insert the setscrews (5).
19. Thread the air vent (16) and Pipe Plug (27) in to the protection tube. Choose positions that are
appropriate for the mounting position of the unit in your application.
20. 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.
21. Use the key (25) to attach half the coupling (24) to the worm shaft.
22. Attach the other coupling half (24) to the motor shaft.
23. 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 (32, 31) to fasten the motor to the
integrated actuator.
24. Insert one pipe plug (27) into the sleeve and partially fill the cavity with Ronex Extra Duty 1
grease.
25. Insert the other pipe plug (27) in the sleeve.
2-7 Assembly of Traveling Nut Actuator (TN)
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) 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
(18).
4. Set the sleeve aside and continue.
5. Install the ball nut assembly (12) on to the end of the ball screw (11). This must be carefully
transferred from the mandrel onto the ball screw so the ball bearings inside do not escape.