Tracking |
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Rotate the upper wheel several turns by hand. Watch the lateral movement of the blade on the tire. The blade will move back and forth slightly until it finds its equilibrium position. If the blade is tracking correctly, it will stay on both tires in one location, not necessarily in the center of the wheels. If the blade will not stay in one place on the tires, check that the wheels are
1.Disconnect the bandsaw from the power source and adjust the upper and lower guide bearings away from the blade. See Blade Guide adjustment section.
2.Decrease the tension slightly before adjust- ing tracking. Tracking adjustment will auto- matically increase the tension.
3.Loosen the lock knob (#22) on the tracking control knob. Turn the tracking control knob clockwise or
4.
Blade Tension |
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Control Knob |
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Guide Post | Blade Tracking | |
Securing Knob | ||
Lock Knob | ||
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| Blade Tracking | |
| Control Knob |
Figure 8. Tracking adjustment knobs.
Check the upper and lower support bearings and guide bearings each time you start your band- saw.
Always adjust the assemblies away from the blade before installing a new blade or making blade tracking adjustments. After blade tension and tracking are set correctly, re-adjust the upper and lower support bearings and guide bearing assemblies into position.
The support bearings back-up the blade during the sawing operation. Perform steps 1-3 for both upper and lower support bearings. Both upper and lower assemblies are identical. See Figure 9 for adjustment locations. To adjust support bear- ings:
1.Loosen the setscrews (#33) securing the support bearing shafts (#38).
2.Turn the knurled end of the support bearing shaft to position the edge of the bearings behind the blade. Push or pull the shafts so that the upper and lower support bearings are about 1/64" behind the blade.
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Guide Post |
Blade |
Support Bearing Shaft |
Support Bearing |
Guide Bearing Shafts |
Guide Bearing |
Shaft Setscrew |
Guide Bearings |
