Southbend SOUTH BEND LATHE CO.. SB1024 - Manual (Page 41)

For Machines Mfg. Since 8/09 SB1024/SB1025/SB1026
-39-
O P E R A T I O N
Setting SB1025/SB1026 Spindle Speed
Range
1. Make sure that the spindle rotation is turned
OFF and the spindle is at a complete stop.
2. Use the charts below to find the spindle
speed range that includes the required
spindle speed for your operation.
Note: The Model SB1025 spindle direction switch
on the control panel has four settings that
change the direction and speed of the spindle
motor for each spindle speed range. Positions
F1 (forward) and R1 (reverse) use the low
motor speed, and F2 and R2 use the high
motor speed. Use Figure 15 on Page 29 as
a visual reference for the spindle direction
switch positions.
Properly setting the spindle speed range for
the Model SB1025/SB1026 involves correctly
positioning the high/low range lever AND
the spindle speed range selector. ALWAYS
make sure these two devices are properly
set before beginning the spindle rotation to
avoid damaging the machine and voiding the
warranty.
Model SB1025 Spindle Speed Ranges
Low Range
w/Switch @ F1/R1
80–325 RPM
Low Range
w/Switch @ F2/R2
160–650 RPM
High Range
w/Switch @ F1/R1
710–2800 RPM
High Range
w/Switch @ F2/R2
1420–5600 RPM
Model SB1026 Spindle Speed Ranges
Low Range 80–325 RPM
High Range 710–2800 RPM
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.
3. Low Spindle Speed Range: Pull the knob of
the spindle speed range selector (see Figure
33) out to disengage the detent pin, rotate
the selector clockwise to the front position,
then release the knob.
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.
Figure 33. Model SB1025/SB1026 spindle speed
range controls.
High/Low
Range Lever
High Low
High Low
Range Selector