Southbend SB1017 owner manual Blade Guide Bearings, To adjust the blade guide bearings

5.Use the blade tension knob to release the blade tension, as shown in Figure 53.

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Figure 53. Adjusting tracking hex bolt.

6.Adjust the tracking set screw, as shown in Figure 53, then tighten the lower hex bolt loosened in Step 4.

—Tightening the tracking set screw will move the blade closer to the shoulder of the wheel.

—Loosening the tracking set screw will move the blade away from the shoulder.

7.Tension the blade.

8.Reconnect the power and turn the bandsaw ON.

—If the blade tracks along the shoulder of the wheel (without rubbing), the blade is tracking properly and this adjustment is completed.

—If the blade walks away from the shoulder of the wheel or hits the shoulder, turn the bandsaw OFF, disconnect it from power, then repeat Steps 4–8.

9.Turn the bandsaw OFF, disconnect it from power, then replace the blade guard and wheel access cover.

Blade Guide Bearings

The blade guide bearings must be properly adjusted to make square cuts. One bearing on each assembly has an eccentric bushing that allows it to be adjusted to properly support the blade. The bearings are secured in place by a hex nut and lock washer, as shown in Figure 54.

Backing Bearing

Hex Nut

Eccentric

Bushing

Figure 54. Blade guide adjustments.

To adjust the blade guide bearings:

1.DISCONNECT BANDSAW FROM POWER!

2.Position the saw in the vertical position (see Vertical Operation on Page 30 for more information).

3.Loosen the hex nuts that secure the eccentric bushings attached to the guide bearings.

4.Adjust the eccentric bushing as necessary so that it 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 backing bearing in the same manner, but leave a gap between 0.002– 0.003" from the back of the blade.