Southbend SB1001 Benutzerhandbuch

For Machines Mfg. Since 8/11

Model SB1001 8K

™

 Lathe

-43-

  Arrange the timing belts and pulleys as 

indicated in the illustration above the 
threading chart (see Figures 61–62) and the 
pulley and belt identification column in the 
chart.

  Make sure the 16T pulley is on the 

upper left pulley shaft.

  Remove the pulley and bushing from the 

 pulley shaft (see Figure 62).

 To remove a pulley, remove the hex 

nut from the pulley shaft, then remove 
the pulley. Take care not to displace 
the shaft key. When re-installing the 
pulleys, align the pulley keyway with 
the shaft key, then secure it in the 
reverse order. Only tighten the hex nut 
until it is slightly snug—enough to keep 
the pulley on the shaft. Overtightening 
it may damage the shaft and bushings.

 

Install two 48T pulleys on the upper 
right pulley shaft (positions A and B).

  Install the 18T pulley on the D pulley 

shaft (bottom right).

  Install two 140XL timing belts in 

positions E and F.

 

Apply pressure to the upper right pulley 
as you re-tighten the shaft hex nut on that 
pulley shaft.

  Continue to apply pressure on the pulley as 

you re-tighten the thumb screw to tension 
the timing belts.

Leave a slight amount of slack in 

the timing belts when securing the pulleys. 
Adjusting the tension too tightly will cause 
excessive wear and stretching. Adjusting the 
tension too loosely could cause the belt to 
slip during operation.

Close the end cover before re-connecting the 
lathe to power.

The numbers on the thread dial show when 
to engage the half nut during inch threading 
(refer to thread dial chart for number usage). 
The thread dial gear must be engaged with 
the leadscrew for this to work. Use a 5mm 
hex wrench to loosen the cap screw shown 
in Figure 63, pivot the dial gear toward the 
leadscrew so that it properly meshes with the 
leadscrew threads, then re-tighten the cap screw 
to hold it in place.