Now, direct your attention to the controls located around the backside of the upper cover of the saw. See Figure 24.
F. This knob is used to control blade tension. Turning clockwise increases tension; coun- terclockwise decreases tension.
G. This knob controls blade tracking. Note that the knob has a locknut to lock tracking in place.
H. This handle locks the upper blade guide assembly in position. The upper guide should be adjusted to within 1⁄4" of the work- piece for optimum blade support. Do not operate bandsaw without locking the guide post handle.
F
G
H 
Figure 24. Location of blade controls.
Do not make adjustments while the band- saw is running. Ensure that the switch is off, power is disconnected, and moving parts have stopped before making adjustments. Check adjustments while power is still dis- connected by manually turning the bandsaw wheel by hand.
Blade Tension
Proper blade tension is important for optimum bandsaw performance. See Figure 24 for band- saw tension controls. To increase blade tension, turn the blade tension knob clockwise. To reduce blade tension, turn the blade tension knob coun- terclockwise.
Since a variety of blades will work well with this saw, final blade tension ultimately depends on the type and size of blade you use. Thinner blades require less tension than wide blades. Too much tension will result in blade breakage. A properly tensioned blade will track the cutting line accu- rately and the cut will be smoother.
Proper blade tension can best be achieved by determining the amount of blade deflection:
1.Ensure that the power is off and the saw is unplugged. Raise the upper guide assem- bly all the way and lock in place.
2.Press, with moderate pressure, on the face of the blade with your thumb.
3.Turn the tensioning knob to adjust the amount of tension. The blade should deflect about 1/4".
If the tension seems correct, make all of the other adjustments to the saw and test run. If the blade is not cutting properly, the tension may be incor- rect and readjustment may be needed.
Remember to reduce the blade tension when the bandsaw is not in use, this will help to prevent premature breakage of the blade and/or the rub- ber tires.
G1019 14'' Bandsaw |
