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For Machines Mfg. Since 8/11
Model SB1001 8K
™
Lathe
OPERATION
Note: As you tighten the tensioning bolt, the
shafts will straighten and apply more
tension to the belts. The correct amount of
belt tension is when there is approximately
1
⁄4"–
3
⁄8" deflection with moderate pressure
applied to the belt between the pulleys (see
Figure 50).
Important: Do not overtighten the belts—this
could cause the machine to run hot and
cause damage to the motor and bearings.
Figure 50. Testing for correct drive belt tension.
Pulley
Deflection
Pulley
Selecting Spindle Speed
When spindle rotation is started with the spindle
switch, the spindle speed is selected by rotating
the spindle speed dial (see Figure 51) until the
tachometer display shows the desired spindle
speed.
Figure 51. Spindle speed controls.
Spindle
Speed
Dial
Tachometer
Display
Power Feed &
Threading Setup
Timing Belts & Pulleys
The rate that the carriage moves when engaged
with the longitudinal leadscrew for power feed
or threading operations is controlled by the
configuration of the timing belts and pulleys (see
Figure 52).
Figure 52. Timing belt and pulley.
Timing
Belt
Pulley
The timing belt and pulley configurations for
the available feed rate and threading options
are displayed in the chart on the front of the end
cover (see Figure 53).
Figure 53. Feed rate and threading chart.
Feed Rate
& Threading
Chart
The maximum recommended spindle speed is
2300 RPM. DO NOT exceed this for more than
a brief period of time or machine damage may
occur.