Справочник Пользователя для Southbend 1368

-19-

SB1363-64/SB1367-68

Mfg. Since 10/09

Setting the spindle preload on the 
rotary table affects the accuracy and 
ease of use during operation. 

Keep in mind, that too much preload 
will make table rotation difficult 
and will cause pre-mature wear of 
the gears and mating surfaces of 
the table. Conversely, not enough 
preload may result in reduced 
accuracy. Use your best judgment 
when setting the spindle preload on 
the rotary table.

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.

4.  From the back of the rotary 

table, loosen the spindle lock 
collar cap screw (see Figure 16 
on the previous page).

5.  Loosen the lock collar at least 

two full turns to remove any 
preload.

6.  Rotate the table by hand as you 

re-tighten the lock collar. When 
it becomes difficult to turn the 
table, back off the lock collar 
slightly until the table rotates 
freely again, then, while keeping 
the lock collar from rotating, re-
tighten the lock collar cap screw.

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.