Southbend SOUTH BEND LATHE CO.. SB1024 Manual De Usuario

For Machines Mfg. Since 8/09

SB1024/SB1025/SB1026

-59-

Leadscrew backlash is the amount of motion 
the leadscrew rotates before the attached device 
begins to move.

Although the mill is equipped with double-
bronzed longitudinal and cross leadscrew nuts to 
minimize backlash, leadscrews will always have 
a certain amount of backlash that will increase 
with normal wear.

Generally, 0.005"–0.010" leadscrew backlash 
is acceptable to ensure smooth movement and 
reduce the risk of premature thread wear. 
However, if you find it necessary to adjust 
leadscrew backlash, perform the procedures 
listed below.

T-Handle Hex Wrench 5mm ................................. 1
Hex Wrench 3mm ................................................. 2
Hex Wrench 8mm ................................................. 1
Wrench 19mm ....................................................... 1

  Rotate the adjustment plate on the 

leadscrew nut in small increments, then 
check the amount of backlash.

  When you are satisfied with the adjustment, 

re-tighten the two cap screws.

  DISCONNECT MILL FROM POWER!

  Loosen the two cap screws on the leadscrew 

nut accessed from underneath the left side of 
the table, as shown in Figure 64.