Symptoms
- Blade rides near the edge of the wheel instead of centered
- Blade rubs against the wheel flange
- Blade seems to walk off the wheels during use
- Tracking was fine until the blade was changed
Likely causes
- CommonTracking knob/adjustment not set correctly for the current bladeDifferent blade widths track slightly differently and often need re-adjustment.
- CommonBlade tension too low, allowing it to wander on the wheelsLow tension makes the blade unstable on the wheels.
- PossibleWorn or glazed wheel tiresTires that are hard, cracked, or have lost their crown can't guide the blade properly.
- PossibleDebris on the wheel or tire surfaceBuildup can create an uneven surface for the blade to ride on.
What to do
- Unplug the saw before adjusting tracking.
- Set correct tension for the blade width first, since tracking is adjusted after tension.
- Spin the upper wheel by hand while slowly adjusting the tracking knob until the blade rides centered on the wheel's crown.
- Clean any sawdust or resin buildup off the wheel tires.
- Inspect the tires for cracking, flat spots, or glazing and replace if worn.
- Recheck tracking after installing the blade guides, since they can slightly affect how the blade rides.
Tools and parts
- Band saw
- Tension gauge (optional)
- Cleaning brush
Band saw wheel tiresSearch: “band saw tire replacement kit”
When to call a pro
If tracking won't hold center even with a good blade and clean tires, a repair shop can check the wheel bearings and coplanarity.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.