Joyce HBIA51 - Ball Screw 1 diameter, 1.0" lead" - Manual (Page 5)

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endorsement. Joyce/Dayton assumes no responsibilities for the quality, performance or
availability of any listed products
Company Brand Name Ball Screw
Integrated Actuator
Component
Mobilgrease XHP 461 Housing
Mobilith SHC PM 460 Housing
Mobilgrease XHP 221 Lifting screw and tube
Spindle or 10-wt oil Traveling nut (TN)
2-2 Repair Parts
Repair parts may be obtained by calling Joyce/Dayton Customer Service at (800) 523-5204, (937)
294-6261, (937) 297-7173 (facsimile) or your local sales representative. When ordering repair
parts, please supply the serial number (both are located on the Integrated Actuator nameplate).
The following parts are recommended for rebuild or spares. See Exploded Views in Sections 3-1
and 3-2 and Parts List in Section 3-3.
A. (2) Thrust Bearing
B. (1) Worm Gear Nut
C. (1) Protection Tube Assembly (1) Worm - 6
D. (1) Ball Screw
E. (1) Ball Nut Assembly/ Ball Nut
F. (1) Translating Tube Assembly
G. Small parts repair kit for BIA/HBIA Traveling nut actuator TN
H. Small parts repair kit for BIA/HBIA Translating tube actuator TT
2-3 Disassembly of Translating Tube Actuator (TT)
1. Use the appropriate disassembly procedure. If the ball nut is outside the actuator on the screw,
it is a Traveling Nut Integrated Actuator (TN), this is also called a “rotating screw” actuator. If
the ball nut is not positioned outside the actuator sleeve, it is a Translating Tube Integrated
Actuator (TT).
2. Handle all machined parts with care and maintain an “order of disassembly” to aid in re-
assembly.
3. Disconnect power from the Ball Screw Integrated Actuator before proceeding.
4. First remove the plug then remove the key (25) and coupling half (24) from the worm shaft.
5. Remove the seal (9) and retaining ring (8). The seal will generally be destroyed in the removal
process.
6. Tap on the motor end of the worm shaft (6). This will loosen and unseat the worm shaft
bearing (7) and permit disassembly. Rotate the worm clockwise to remove it.
7. Loosen the two set screws (5) and unthread the protection tube assembly (4). Slide the
protection tube assembly (4) from the translating tube assembly (13, 26, 28, 29, and 30).
8. Disassemble the translating tube assembly from the sleeve (1) by firmly pulling upward, away
from the sleeve.
9. The nut, key, and retaining ring (3, 14, and 10) will be attached to the end of the assembly.
10. Remove the retaining ring (10) from the end of the ball screw (11).
11. Disassemble the nut and key (3, 14) from the ball screw.
12. The ball screw (11), travelling nut (12), translating tube (13), retainer (17), screw (18), and lock
washer (19) are considered an assembly. If any of these parts are worn and/or damaged, you
must replace them all. It is not possible to disassemble them without damaging them.
13. The lower thrust bearing (2) can now be pulled out of the sleeve.