Southbend Swivel Mast Bandsaw sb1018 - Manual (Page 37)

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