Southbend SOUTH BEND LATHE CO.. SB1024 - Manual (Page 40)

-38-
For Machines Mfg. Since 8/09 SB1024/SB1025/SB1026 O P E R A T I O N
3. Press the spindle speed range lever shown
in Figure 32 toward the head to release
the detent pin from the detent plate, move
selector so that the pin is over the other
detent, then release the selector.
— When the selector is pointing to the rear
and the front detent is engaged, the low
speed range is selected. Conversely, when
the lever is pointing toward the front and
the rear detent is engaged, the high speed
range is selected.
Note: If it is difficult to move the range selector,
rotate the spindle by hand to help mesh the
gears until the selector moves freely.
Setting SB1024 Spindle Speed Range
1. Make sure that the spindle rotation is
turned OFF and the spindle is at a complete
stop.
2. Use the chart below to find the spindle speed
range that includes the required spindle
speed for your operation.
Model SB1024 Spindle Speed Ranges
Low Range 60–500 RPM
High Range 500–4200 RPM
When the spindle speed range is changed,
the direction of spindle rotation will reverse.
ALWAYS know which way the spindle
is rotating before beginning the cutting
operation.
4. Make sure the selector detent pin is well
seated by attempting to move the selector
without pressing it toward the head.
— If the detent pin is well seated, the
selector will not move when you attempt
to move it as instructed above.
— If the selector does move when you
attempt to move it as instructed above,
then re-position the selector so that the
pin is firmly seated in the detent plate.
5. Perform the Meshing Spindle & Spindle
Clutch procedure as instructed on Page 40
to make sure the front spindle pulley and
pinion are properly seated into the bull gear.
Figure 32. Model SB1024 spindle speed range
selector.
Model SB1024
Spindle Speed
Range Selector
High Low
Detent
Plate