Troubleshooting: Planer Operating Problems
Trouble
Snipe.
Fuzzy grain.
Torn grain.
Rough/raised grain.
Rounded, glossy surface.
Poor feeding of lumber.
Probable Cause | Remedy | |
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Table rollers not set properly. | Adjust table rollers to proper height. | |
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Inadequate support of long boards. | Support long boards with a roller | |
stand. | ||
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Uneven feed roller pressure front to | Adjust feed roller tension. | |
back. | ||
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Dull knife inserts. | Rotate or replace knife inserts. | |
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Lumber not butted properly. | Butt | |
as they pass through. | ||
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Planing wood with a high moisture | Remove high moisture content from | |
content. | wood by drying, or use different stock. | |
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Dull knife inserts. | Rotate or replace knife inserts. | |
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Too heavy a cut. | Adjust proper depth of cut. | |
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Knife inserts cutting against grain. | Try to cut with the grain for finish cut. | |
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Dull knife inserts. | Rotate or replace knife inserts. | |
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Dull knife inserts. | Rotate or replace knife inserts. | |
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Excessive depth of cut. | Decrease cutting depth. | |
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Moisture content too high. | Remove high moisture content from | |
wood by drying, or use different stock. | ||
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Dull knife inserts. | Rotate or replace knife inserts. | |
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| Adjust feed roller tension. If proper | |
Inadequate feed roller pressure. | tension cannot be achieved, replace | |
| feed rollers. | |
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Planer bed rough or dirty. | Clean off pitch and residue; apply | |
light coat of paste wax to planer bed. | ||
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Check | ||
needed adjustments. | ||
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Surface of feed rollers has been worn | Lightly roughen the feed roller surface | |
too smooth. | with sandpaper. | |
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