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-52-
W1770 21" Bandsaw w/Foot Brake
SERVICE
Aligning Wheels
Components and Hardware Needed: Qty
70
1
⁄4" Long Wood 2x4 ..........................................1
Tools Needed:
Wrench 17mm ...................................................1
Tape Measure ....................................................1
Coplanarity Gauge (see Figure 73) ..........................1
Straightedge .....................................................1
Fine Ruler ........................................................1
Wheel alignment is one of the most critical factors for
optimal performance from your bandsaw.
Heat, vibration, wandering, blade wear, tire wear and
overall bandsaw wear are considerably decreased when
the wheels are properly aligned or “coplanar.”
Coplanar wheels automatically track the blade by balanc-
ing it on the crown of the wheel. This is known as copla-
nar tracking.
Checking Coplanarity
1. Make the "Coplanarity Gauge" shown in Figure 73.
Note: For best results, straighten the 2x4 with a
jointer before cutting.
2. DISCONNECT BANDSAW FROM POWER!
3. Remove the fence and open both wheel covers.
4. Adjust the blade guides away from the blade, loosen
blade tension, remove the table insert and pin, then
remove the blade.
5. Remove the four trunnion cap screws and the table.
6. Reinstall the blade (Page 43), making sure the guide
bearings and support bearings are away from the
blade, then tighten your blade to the tension that it
will be used during operation.
7. Place your coplanarity gauge up against both wheels
in the positions shown in Figure 74.
Figure 73. Dimensions of coplanarity
gauge.
Side View
70¼"
4"
21"
21"
28¼"
1½"
Coplanarity
Gauge
Gauge Positions
Tracking
Knob
Adjustment
Hub
Wheels
Figure 74. Checking for coplanarity.