Southbend 1368, SB owner manual Spindle Preload, S E R V I C E

Mfg. Since 10/09	S E R V I C E			SB1363-64/SB1367-68
Spindle Preload		4.	From the back of the rotary
Setting the spindle preload on the			table, loosen the spindle lock
			collar cap screw (see Figure 16
rotary table affects the accuracy and
			on the previous page).
ease of use during operation.
Keep in mind, that too much preload		5. Loosen the lock collar at least
			two full turns to remove any
will make table rotation difficult
			preload.
and will cause pre-mature wear of
the gears and mating surfaces of		6.	Rotate the table by hand as you
the table. Conversely, not enough
			re-tighten the lock collar. When
preload may result in reduced
			it becomes difficult to turn the
accuracy. Use your best judgment
			table, back off the lock collar
when setting the spindle preload on
			slightly until the table rotates
the rotary table.
			freely again, then, while keeping
Tool Needed	Qty		the lock collar from rotating, re-
			tighten the lock collar cap screw.
Hex Wrench 3mm. . . . . . . . . . . . . . 1

To set the rotary table spindle preload:

1.Make sure the table locks are loose.

2.Use the backlash adjustment ring to disengage the worm shaft from the worm gear so that the table can be freely rotated by hand and not the handwheel.

3.Position the table in a vertical position so that both the front and the back are accessible.

7.Use the backlash adjustment ring to re-engage the worm shaft and gear, then test the table rotation by using the handwheel.

—If you are not satisfied with the table rotation, repeat this procedure to re-adjust the preload until you are satisfied with the results.

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