Southbend SOUTH BEND LATHE CO.. SB1024 User Manual

Page of 100
For Machines Mfg. Since 8/09
SB1024/SB1025/SB1026
-41-
O P E R A T I O N
Setting Spindle Speed
The Model SB1024 uses a variable pulley system 
to set infinite speeds within the speed range 
selected. The Model SB1025/SB1026 requires 
re-positioning the V-belt on the pulleys to change 
spindle speed.
Use the appropriate section below for the mill to 
select the correct spindle speed.
Setting SB1024 Spindle Speed
1.
  Start the spindle rotation.
2.
  Slowly rotate the speed handwheel shown 
in Figure 34 until the desired speed is 
displayed in the speed indicator window for 
the speed range selected.
For the Model SB1024 ONLY, always make 
sure that the spindle rotation has been started 
and is at a constant speed before using 
the variable speed handwheel to adjust the 
spindle speed. Otherwise, the moving parts 
inside the belt housing could be damaged and 
void the warranty. 
Figure 34. Model SB1024 variable spindle speed 
handwheel and indicator windows.
Variable Speed 
Handwheel
Low Range
Speed 
Indicator
High Range
Speed Indicator