Figure 3-3: Example of adjusting the reference mark.
3.1.6 Tighten the Rotary Clamps
To keep the table from rotating during heavy milling operations:
Use the clamp handles to tighten the rotary clamps.
To allow the rotary table to rotate freely, make sure that the rotary
clamps are loosened during motorized rotation.
To prevent the rotary table form losing the correct position, make
sure that the rotary clamps are not too tight during a move.
3.1.7 Turn the Rotary Table by Hand
Power is transmitted from the A-axis motor driver to the rotary
table by a worm gear at the end of the drive shaft. The eccentric
lock stops the eccentric sleeve from rotating.
To turn the rotary table by hand, you must disengage the worm
gear. To disengage the worm gear:
1. Loosen the eccentric lock.
2. Rotate the eccentric: Turn the motor mount as far as it will
rotate in the clockwise direction (counterclockwise on super
spacer rotary tables).
3. Tighten the eccentric lock.
The worm gear is disengaged.
To reengage the worm gear:
NOTICE!
You must use the eccentric lock before engaging
the worm drive. If you do not, there is a risk that the
motor driver could disengaging during use.
1. Loosen the eccentric lock.
2. Rotate the eccentric: Turn the motor mount as far as it will
rotate in the counterclockwise direction (clockwise on super
spacer rotary tables).
3. Tighten the eccentric lock.
The worm gear is engaged.
4. Make sure that the worm is completely engaged: If necessary,
rotate the rotary table slightly (by hand) to engage the worm
gear in the ring gear.
NOTICE!
The worm must be completely engaged. If it's
not, the rotary table will exhibit excessive backlash.
Page 7
©Tormach® 2019
Specifications subject to change without notice.
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TD10552: Owner's Guide: 4th Axis (0919A)
TECHNICAL DOCUMENT
