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Page 42 TECHNICAL PUBLICATIONS T46230812 Rev . D DH Positioning System Assembly , P/T This Document Supports Assembly 46230812 12. Remove the seven 6 - 32 x 3/16 button head screws that connect the rear board guide to th…
Page 41
TECHNICAL PUBLICATIONS
DH Positioning System Assembly, P/T T46230812 Rev. D
This Document Supports Assembly 46230812
Advanced Support Information
The following corrective maintenance procedures are intended for
Universal Instruments Corporation Field Service Engineers only.
Unauthorized implementation of these procedures may result in damage
to the machine and may adversely affect your warranty status if
performed by other than UIC personnel.
The advanced support information procedures are those identified on the
maintenance concept table as requiring a minimum skill level of UIC Field
Service Engineer. All such procedures may or may not be present in this
document at this time.
Rotary Table Assembly Disassembly/Assembly
1. Remove the 6 - 32 x 3/16 button head screws and washers securing the
tooling pin arms and remove the tooling pin arms.
2. If necessary, remove the 5 - 40 x 1/4 cap screws securing the tooling
pins and remove the tooling pins.
3. Remove the 6 - 32 x 3/8 button head screws securing the tooling pin
housings to the tooling plate and remove the tooling pin housings.
4. Remove the five 6 - 32 x 3/8 cap screws securing the tooling plate to
the shaft and remove the tooling plate.
5. Remove the four 10 - 32 x 7/8 cap screws securing the shaft assembly
to the rotary table.
6. Remove the retaining ring, collar clamp and shaft spacer from the ends
of the shaft.
7. Remove the bearings, bearing blocks and torsion springs from the
shaft.
8. Remove the two 10 - 32 x 1/4 button head screws that secure the front
board support/guide assembly to the mounting blocks and remove the
front board support/guide assembly.
9. Remove the seven 6 - 32 x 3/16 button head screws that connect the
front board guide and the front board support.
10. Remove the two 8 - 32 x 5/8 cap screws that mount the rear board
support/guide assembly, rear support blocks and tee nuts to the rotary
table.
11. Remove the four 6 - 32 x 1/4 cap screws that secure the rear board
support/guide assembly to the rear support blocks and remove the rear
support blocks.
Page 42
TECHNICAL PUBLICATIONS
T46230812 Rev. D DH Positioning System Assembly, P/T
This Document Supports Assembly 46230812
12. Remove the seven 6 - 32 x 3/16 button head screws that connect the
rear board guide to the rear board support.
13. If necessary, remove the two 10 - 32 x 3/8 cap screws that secure the
blocks to the rotary table and remove the blocks.
14. If necessary, remove the three 1/4 - 20 x 1/2 and one 1/4 - 20 x 1/4 cap
screws and dowel pins securing the four stops to the rotary table and
remove the stops.
15. Inspect all parts for wear or damage and replace as necessary.
16. Press seven 3/4 inch long and one 3/8 inch long dowel pins into the
rotary table. The 3/8 dowel pin must be installed in the front left stop
position shown.
17. Install the three stops to the rotary table using the 1/4 - 20 x 1/2 cap
screws and shaft spacers. Install the fourth stop to the rotary table
using the 1/4 - 20 x 1/4 low head cap screw in the front left stop
position shown.
18. Press the two blocks into the rotary table in the position shown. Using
a straight edge, square the blocks and secure to the rotary table using
the two 10 - 32 x 3/8 cap screws.
19. Assemble the rear board support and the rear board guide using the
seven 6 - 32 x 3/16 button head screws .
When assembling the rear board support and the rear board guide,
determine the edge clearance required for your specific system
configuration. Move the board support fully forward for a 5mm edge
clearance or fully rearward for a 3mm edge clearance.
20. Assemble the rear board support/guide assembly to the two rear
support blocks using the four 6 - 32 x 1/4 cap screws.
21. Install the rear board support/guide assembly to the rotary table using
the two 8 - 32 x 5/8 cap screws and two tee nuts.
Position the rear board support/guide assembly out of the way for the
remainder of this assembly procedure. It will be located as required
when the preproduction set up procedures are performed.
22. Assemble the front board support and the front board guide using the
seven 6 - 32 x 3/16 button head screws .
Page 43
TECHNICAL PUBLICATIONS
DH Positioning System Assembly, P/T T46230812 Rev. D
This Document Supports Assembly 46230812
When assembling the front board support and the front board guide,
determine the edge clearance required for your specific system
configuration. Move the board support fully forward for a 5mm edge
clearance or fully rearward for a 3mm edge clearance.
23. Install the front board support/guide to the rotary table assembly in the
position shown using the two 10 - 32 x 1/4 button head screws.
24. Assemble the tooling plate to the shaft in the position shown using the
five 6 - 32 x 3/8 cap screws.
25. Slide the two torsion springs onto the shaft noting the orientation of the
springs. Rotate the spring to apply tension and ensure that the springs
engage the cutout on the tooling plate.
26. Assemble the bearings into the bearing blocks and slide them onto the
shaft in the position shown.
27. Assemble retaining ring to the right end of the shaft.
3/4 Dowel Pin
Stop
3/8 Dowel Pin
Stop
Shaft Spacer
Rear Board
Guide
Rear Board
Support
Tee Nut
Rear Support
Block
Rotary Table
Block
Bearing Block