Southbend SB1013 ユーザーズマニュアル

For Machines Mfg. Since 7/09

EVS Toolroom Lathes

-47-

When the 44- and 57-tooth end gears are meshed 
(see Figure 87), you can perform modular and 
diametral pitch turning.

The gearbox drive gear on this lathe can be 
configured for the "normal position" or the 
"alternate position" (both described in following 
paragraphs), depending upon the type of 
operation to be performed. The lathe is shipped 
with the end gears in the normal position. Gears 
must be thoroughly cleaned and re-coated in 
grease before installing (refer to Page 61), and 
the backlash must be maintained at 0.005" for 
correct meshing.

The 24T end gear is installed in the top position, 
the 44T/56T end gears in the middle position, 
and the 57T end gear in the bottom position, as 
shown in Figure 86. In the normal position, the 
56T and 57T gears are meshed, which allows for 
inch and metric threading and all general feed 
operations.

57T

56T

24T

Inch and Metric Pitch 

Threading

Inch and Metric Feeding

57T

56T

44T

24T

Modular and Diametral 

Pitch Turning

  DISCONNECT LATHE FROM POWER!

  Move the gearbox range lever to "Low" so 

that the gears will not rotate in the following 
steps, then open the lathe headstock side 
cover.

  To change the position of the 57T gear:

  Remove the cap screw and flat washer 

that secures the gear, then remove the 
gear (see Figure 88).