Blade Tracking
The blade tracking is primarily affected by the adjustment of the top wheel. To ensure operator safety, the blade tracking should be checked before the machine is operated.
To check and adjust the blade tracking:
1.Disconnect the machine from the power source!
2.Adjust the upper and lower guide bearings and support bearings away from the blade. See “Adjusting Support Bearings” subsection on page 20 and “Adjusting Guide Bearings” subsection on page 21 for more information.
3.Remove the side cover if not already done.
4.Loosen the wheel lock knob bolt on the back- side of the bandsaw (Figure 17).
!
Figure 17. Loosening the wheel locking knob.
5.Spin the upper wheel by hand at least three times and watch how the blade rides on the crown of the wheel. Refer to Figure 18 for an illustration of this concept.
Blade Centered
on Peak of Crown
Blade
Centered on Wheel
CENTER TRACKING
Figure 18. Center tracking profiles.
—If the blade rides in the center of the upper wheel and is centered on the peak of the wheel crown, then the bandsaw is already tracked properly and no further adjustments are needed at this time.
—If the blade does not ride in the center of the upper wheel and is not centered on the peak of the wheel crown, then continue with the following steps.
6.Use a 3mm Allen wrench to adjust the track- ing setscrew while spinning the upper wheel. Adjust the tracking setscrew (Figure 19) until the blade rides along the center of the band- saw wheels.
G8976 3 Wheel 12" Bandsaw |
