Cutting Curves; Troubleshooting Guide - Delta 28-348 Instruction Manual

When cutting curves, turn the stock carefully so that the blade follows without twisting. If a curve is so abrupt that it is
necessary to repeatedly back up and cut a new kerf, a narrower blade, a blade with more set, or additional relief cuts
Fig. 61, may be necessary to allow the blade to cut more efficiently. The more set a blade has, the easier it will allow
the stock to be turned, but the cut is usually rougher.
When withdrawing the piece being cut, changing the cut, or for any other reason, be careful not to accidentally draw
the blade off the wheels. In most cases, it is easier and safer to turn the stock and saw out through the waste material,
rather than try to withdraw the stock from the blade.
In spite of how well a band saw is maintained, problems can occur. The following troubleshooting
guide will help you solve the more common problems:
Trouble: SAW WILL NOT START.
Probable Cause
1. Saw not plugged in.
2. Fuse blown or circuit breaker tripped.
3. Cord damaged.
Trouble: SAW WILL RUN, BUT BLADE WILL NOT TURN.
Probable Cause
1. Gearbox is disengaged.
Trouble: BREAKER KICKS OUT FREQUENTLY.
Probable Cause
1. Extension cord too light or too long.
2. Feeding stock too fast.
3. Blade in poor condition (dull, warped, gummed).
4. Low voltage supply.
Trouble: BAND SAW VIBRATES EXCESSIVELY.
Probable Cause
1. Machine not mounted securely to stand.
2. Stand on uneven surface.
3. Worn belt.
4. Pulley not aligned.
5. Motor not fastened securely.

CUTTING CURVES

TROUBLESHOOTING GUIDE

Fig. 61
Remedy
1. Plug in saw.
2. Replace fuse or reset circuit breaker.
3. Replace cord.
1. Properly engage the shifter knob.
Remedy
1. Replace with adequate size cord.
2. Feed stock more slowly.
3. Clean, sharpen, or replace blade.
4. Contact an electrician.
Remedy
1. Tighten all mounting hardware.
2. Reposition on flat level surface.
3. Replace belt.
4. Adjust pulleys.
5. Tighten all mounting hardware.
23
(continued on next page)