46230812.pdf - 第51页

Page 49 TECHNICAL PUBLICATIONS DH Positioning System Assembly , P/T T46230812 Rev . D This Document Supports Assembly 46230812 Preventive Maintenance Schedule Do not perform any preventive maintenance with power on unles…

Page 48

TECHNICAL PUBLICATIONS

T46230812 Rev. D DH Positioning System Assembly, P/T

This Document Supports Assembly 46230812

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.

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.

End of procedure

Page 49

TECHNICAL PUBLICATIONS

DH Positioning System Assembly, P/T T46230812 Rev. D

This Document Supports Assembly 46230812

Preventive Maintenance Schedule

Do not perform any preventive maintenance with power on unless

specifically instructed otherwise. Failure to observe this warning may

result in personal injury.

When performing machine maintenance, wear a wrist strap connected to

ground to prevent electrostatic discharge damage to printed circuit

boards.

Weekly (W): 1,500,000 Cycles

Check: Perform Maintenance:

1. Check the rotary table squareness. 1. Adjust as needed.

2. Check the rotary table air motor drive 2. Replace as needed.

wheel.

3. Lubricate the rotary table lock assembly with 10w

non-detergent oil.

4. Lubricate the actuator on the actuator assembly with

Kendall Super Blue grease.

Monthly (M): 6,000,000 Cycles

Check: Perform Maintenance:

1. Flush and lubricate the X/Y ball bushings with 10w

oil.

Semiannually (S): 36,000,000 Cycles

Check: Perform Maintenance:

1. Disassemble, clean and lubricate the rotary table

lock assembly per the assembly drawing. Replace

any worn parts.

2. Lubricate the X/Y ball lead screws with Kendall

Super Blue grease.

Dual Rotary Positioning Assembly Preventive Maintenance Details

Page 50

TECHNICAL PUBLICATIONS

T46230812 Rev. D DH Positioning System Assembly, P/T

This Document Supports Assembly 46230812

W3, S1