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22
Fault Probable cause Suggested remedy
Blade is twisting 1. Blade is binding in the cut. 1. Decrease feed pressure.
2. Blade tension too high. 2. Decrease tension on blade
Unusual wear
onside/back of
blade
1. Blade guides worn 1. Replace blade guides.
2. Blade guide bearings not adjusted. 2. Adjust blade guide bearings.
3. Blade guide bearing bracket is loose. 3. Tighten blade guide bearing bracket.
Teeth
missing/ripped
from blade
1. Blade tooth pitch too coarse for
workpiece.
1. Use blade with finer tooth pitch.
2. Feed too slow; feed too fast. 2. Increase feed pressure and/or blade
speed.
3. Workpiece vibrating. 3. Clamp workpiece securely.
4. Gullets loading up with chips. 4a.Use blade with a coarse tooth pitch—
reduce feed pressure.
4b.Brush blade to remove chips.
Motor running too
hot
1. Blade tension too high. 1. Reduce tension on blade.
2. Drive belt tension too high. 2. Reduce tension on drive belt.
3. Blade too coarse for workpiece 3. Use blade with fine tooth pitch.
4. Blade too fine for workpiece 4. Use blade with coarse tooth pitch.
5. Speed reducer requires lubrication 5. Check speed reducer.
Excessive speed
reducer noise/
vibration
1. V-belt is too tight. 1. Reset V-belt tension.
Replacement Parts
Replacement parts are listed on the following pages. To order parts or reach our service department, call
1-800-274-6848 Monday through Friday (see our website for business hours, www.jettools.com). Having
the Model Number and Serial Number of your machine available when you call will allow us to serve you
quickly and accurately
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