Southbend SB1025 User Manual

Page of 100
For Machines Mfg. Since 8/09
SB1024/SB1025/SB1026
-35-
O P E R A T I O N
Note:
 Generally, the goal in the next steps is to 
get the difference of the indicator readings 
between the end of the parallel bar down to 
0.0005". However, the acceptable variance 
will depend on the requirements for your 
operation.
6.
  Rotate the spindle by hand so that the 
indicator point rests on one end of the 
parallel block, as illustrated in Figure 27
then zero the dial.
7.
 
Rotate the spindle so that the indicator point 
rests in the same manner on other end of the 
block, then read the dial.
— If the indicator dial still reads zero or is 
within the acceptable variance, continue 
on with Step 8.
— If the indicator dial has moved from zero 
beyond the acceptable variance, you will 
need to compensate for that amount by 
rotating the head left or right. Repeat 
Steps 5–6 until you are satisfied with the 
spindle axis alignment along the table 
X-axis.
Note:
 Keep one of the rotation lock bolts 
just snug so that the head does not move 
loosely while you adjust it small amounts. 
Remember to tighten the rotation lock 
bolts after adjusting the head.
Figure 28. Parallel block positioned for the Y-axis 
measurement (top view).
Parallel Block
Indicator
Spindle
Table (Top View)
8.
  Place the parallel block directly under the 
spindle and across the width of the table, as 
illustrated in Figure 28.
9.
  Rotate the spindle so that the indicator point 
rests on the parallel bar, as illustrated in 
Figure 28, then zero the dial.
10.
  Rotate the spindle so that the indicator point 
rests on the other end of the bar in the same 
manner, then read the dial.
— If the indicator dial still reads zero or 
is within the acceptable variance, the 
spindle is precisely perpendicular to the 
table in both the X- and Y-axes and the 
tramming procedure is complete.
— If the indicator dial has moved from zero 
beyond the acceptable variance, you will 
need to compensate for that amount by 
tilting the head forward or back. Repeat 
Steps 9–10 until you are satisfied with 
the spindle axis alignment along the table 
Y-axis.
Note:
 Keep one of the tilt lock bolts just 
snug so that the head does not move 
loosely while you adjust it small amounts. 
Remember to tighten the tilt lock bolts 
after adjusting the head.