46230809.pdf - 第41页

Page 41 TECHNICAL PUBLICATIONS Dual Rotary Positioning Assembly - BHS T46230809 Rev .C This Document Supports Assembly 46230809 Preventive Maintenance Schedule Do not perform any preventive maintenance with power on unle…

Page 40

TECHNICAL P UBLICATIONS

T46230809 Rev. C Dual Rotary Positioning Assembly - BHS

This Document Supports Assembly 46230809

13. Using the socket head screws, install the plate retainer and dust bellow

to the bearing retainer.

14. While holding the positioning assembly toward the rear of the machine,

install the spacer on the lead screw shaft and the key in the keyway in

the lead screw shaft.

15. Install the pulley on the lead screw shaft.

16. Using Loctite 242 on the threads of the lock nut, install the washer and

lock nut on the lead screw shaft.

17. While holding the pulley with the special wrench to keep it from turn-

ing, torque the lock nut to 50 in-lbs.

18. Tighten the set screws to secure the pulley in position.

19. Install the drive belt onto the pulley and motor pulley.

20. Using the four screws, washers and lock washers, install the mounting

plate and encoder assembly to the C-frame being sure the flex coupling

slides onto the lead screw shaft.

21. Adjust the motor mounting plate so the belt tensioner mechanism in the

encoder mounting plate engages the motor assembly, then tighten the

four screws securing the motor assembly in position.

22. Tighten the set screw in the flex coupling that secures the flex coupling

to the lead screw shaft.

23. Install the bearing block on the front end of the lead screw shaft and se-

cure the bearing block in position using the three socket head screws.

24. Install the Y frame cover and secure it in position using the button head

screw.

25. Perform the Axis Belt Tension adjustment procedure and the Axis En-

coder adjustment procedure.

26. Using the four screws, install the rear stiffener plate to the C-frame.

End of procedure.

Page 41

TECHNICAL PUBLICATIONS

Dual Rotary Positioning Assembly - BHS T46230809 Rev.C

This Document Supports Assembly 46230809

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 5 w

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 5 w

oil.

Semiannually (S): 36,000,000 Cycles

Check: Perform Maintenance:

1. Disassemble, clean and lubricate the rotary table

lock assembly per the assembly drawing. Re-

place any worn parts.

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

Super Blue grease.

Page 42

TECHNICAL P UBLICATIONS

T46230809 Rev. C Dual Rotary Positioning Assembly - BHS

This Document Supports Assembly 46230809

W3, S1

Dual Rotary Positioning Assembly Preventive Maintenance Details