46230813.pdf - 第51页
Page 49 DH P ositioning System Assembl y , P/T T46230813 Rev . D This Document Supports Assembly 46230813 Rev. D Fr on t Boa rd G uid e Switch Bra c ket Strap A ctua t or Ai r C ylin de r Cy lin de r Br acke t Plate Cy l…
Page 48
T46230813 Rev. D DH Positioning System Assembly, P/T
This Document Supports Assembly 46230813 Rev. D
3. If necessary, remove the shoulder screws, compression springs and 10 -
32 x 3/4 set screw from each switch bracket.
4. On the left switch assembly remove the two 8 - 32 x 7/8 flat head
screws that secure the strap and sensor switch to the left switch bracket
and remove the strap and switch. Perform the same for the right switch
assembly.
5. Remove the two 6 - 32 x 3/4 cap screws that secure the strap to the air
cylinders and remove the strap.
6. Remove the two 10 - 32 x 5/8 cap screws that secure the left air
cylinder assembly to the plate and remove the left air cylinder
assembly. Perform the same for the right air cylinder assembly.
7. Remove the 10 - 24 x 5/8 cap screw that secures the actuator to the left
air cylinder and remove the actuator. Perform the same for the right air
cylinder assembly.
8. Remove the two 10 - 24 x 1/2 cap screws that secure the cylinder
bracket to the left air cylinder and remove the bracket. Perform the
same for the right air cylinder assembly.
9. If necessary, remove the three male elbows and the straight fittings
from the air cylinders.
10. Inspect all parts for wear or damage and replace as necessary.
11. Install the male elbow and straight fitting to the left air cylinder, as
shown, and label them 107 and 106 respectively. Install the two male
elbow fittings to the right air cylinder, as shown, and label them 107
and 106 respectively.
12. Install the cylinder bracket to the left air cylinder using the two 10 - 24
x 1/2 cap screws. Perform the same for the right cylinder and cylinder
bracket.
13. Loosely install the left actuator to the left air cylinder piston. Rotate
the actuator counter clockwise until the flats on the piston shaft
contact the grove on the actuator then tighten the cap screws. Perform
the same for the right actuator and right air cylinder.
14. Loosely install the left air cylinder assembly to the plate using the two
10 - 32 x 5/8 cap screws. Perform the same for the right air cylinder
assembly. Loosely install the strap to the air cylinder pistons using the
two 6 - 32 x 3/4 cap screws as shown and move the strap up and down
to self align the air cylinders. Tighten the two 6 - 32 x 3/4 cap screws
securing the strap to the air cylinder pistons and the four 10 - 32 x 5/8
cap screws securing the air cylinder assemblies to the plate.
Page 49
DH Positioning System Assembly, P/T T46230813 Rev. D
This Document Supports Assembly 46230813 Rev. D
Front Board Guide
Switch Bracket
Strap
A
ctuator
Air Cylinder
Cylinder Bracket
Plate
Cylinder Bracket
Strap
Air Cylinder
Actuator
Strap
Switch
Bracket
15. Manually move the air cylinders through the entire stroke to ensure
there is no binding. If any binding is present, loosen the screws
securing the cylinder bracket to the plate and the air cylinder to the
cylinder bracket and retighten.
16. Install the strap and sensor switch to the left switch bracket using the
two 8 - 32 x 7/8 cap screws. Perform the same for the strap and sensor
switch on the right switch bracket.
17. Install the two 10 - 32 x 3/4 set screws into the left and right switch
bracket assemblies.
18. Apply Tetra grease (UIC # 40833820) to the shoulders of the four
shoulder screws and Loctite #222 (UIC # BLKM07389) to the screw
threads of the four shoulder screws.
19. Slide the compression springs onto the shoulders of the four shoulder
screws. Install the left switch bracket assembly to the plate using the
shoulder screws and compression springs with the springs above the
switch bracket. Perform the same for the right switch bracket assembly.
The adjustment of the switch bracket assemblies will be performed
during the board handling final set up procedure.
20. Install the front board guide to the plate using the two 10 - 32 x 5/8
cap screws and washers.
Page 50
T46230813 Rev. D DH Positioning System Assembly, P/T
This Document Supports Assembly 46230813 Rev. D
Preventive Maintenance Schedule
WARNING
Do not perform any preventive maintenance with power on unless
specifically instructed otherwise. Failure to observe this warning may
result in personal injury.
CAUTION
When performing machine maintenance, wear a wrist strap connected to
ground to prevent electrostatic discharge damage to printed circuit
boards.
Check: Perform Maintenance:
Check the rotary table
squareness Adjust as needed.
Check the rotary table air motor drive
wheel. Replace as needed.
Lubricate the rotary table lock assembly with
10w non-detergent oil.
Lubricate the actuator on the actuator
assembly with Kendall Super Blue grease.
Check: Perform Maintenance:
Flush and lubricate the X/Y ball bushings with
10w oil
Semiannual Maintenance (S): 36,000,000 Cycles
Check: Perform Maintenance:
Disassemble, clean and lubricate the rotary
table lock assembly per the assembly drawing.
Replace any worn parts.
Lubricate the X/Y ball lead screws with Kendall
Super Blue grease
Weekly Maintenance (W): 1,500,000 Cycles
Monthly Maintenance (M): 6,000,000 Cycles