Southbend sb1018 User Manual

Page of 56
For Machines Mfg. Since 8/09
Model SB1018
-35-
S E R V I C E
Frequently check and adjust this setting. A 
blade that is perpendicular to the table surface 
provides the best cutting results with minimal 
side loading and blade wear.
Tools Needed 
Qty
Wrench or Socket 12mm .......................................1
Machinist Square ..................................................1
 
To square the blade to the table:
1.  DISCONNECT BANDSAW FROM POWER! 
2.  Separate the blade guides as far as possible, 
then lower the bandsaw all the way until it 
contacts the downfeed stop bolt.
3.  Place a square on the table bed and against 
the edge of the blade, as shown in Figure 
48, then check different points along the 
length of the table between the blade guides.
Squaring Blade
4.  If the blade is not square to the table, loosen 
the hex bolts shown in Figure 48 and rotate 
the guide bearing assemblies as necessary 
until the blade is perpendicular to the bed, 
then re-tighten the hex bolts.
The blade guide bearings must support the blade 
correctly to make cuts that are perpendicular to 
the table surface. One bearing on each assembly 
has an eccentric shaft that can be adjusted to 
properly support the blade. The bearings are 
secured in place by a hex nut and lock washer, as 
shown in Figure 47.
Blade Guide Bearings
Figure 47. Blade guide adjustments.
Support Bearing
Eccentric 
Shaft
Hex Nut
Tools Needed 
Qty
Wrench or Socket 12mm .......................................1
To adjust the blade guide bearings:
1.  DISCONNECT BANDSAW FROM POWER! 
2.  Lift the headstock and close the downfeed 
valve to stop it in the uppermost position.
3.  Loosen the hex nuts that secure the eccentric 
shafts attached to the guide bearings.
4.  Adjust the eccentric shaft as necessary so 
that the bearing pushes against the blade 
just enough to hold the blade flat between 
the bearings.
 
Note: Since the bearings twist the blade 
into position, it is acceptable if there is 
0.001"–0.002" gap between the blade and 
the front or back of the bearing. Just make 
sure not to squeeze the blade too tightly with 
the bearings. After the guide bearings are 
set, you should be able to rotate the guide 
bearings (although they will be stiff) with 
your fingers.
5.  Adjust the support bearing in the same 
manner, but leave a gap between 0.002–
0.003" from the back of the blade.
Figure 48. Squaring the blade.
Hex Bolts