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Torn Grain
• Too heavy a cut
Remove less material
• Knives cutting against grain
Cut with the grain
• Dull knives
Sharpen knives
Rough/Raised Grain
• Dull knives
Sharpen knives
• Too heavy a cut
Remove less material while planning
• Moisture content too high
Remove moisture by drying or use dry wood
Poor Feeding of Lumber
• Motor belt slipping
Replace motor belt
• Planer bed rough or dirty
Clean pitch and residue; wax planer bed
• Surface of feed rollers are dirty
Clean feed rollers with a cloth and mild cleaner
Uneven Depth of Cut Side to Side
• Cutterhead knife projection not uniform
Adjust knives
Head Difficult to Adjust
• Lack of lubrication on corner posts and screws
Lubricate corner posts and screws
Board Thickness Doesn’t Match Depth Scale
• Depth scale incorrect
Adjust depth scale
Machine Won’t Start
• Not plugged in
Check power source
• Circuit breaker/fuse tripped
Check power source
• Motor failure
Have motor checked
• Loose wire
Have motor checked by qualified electrician
• Circuit breaker next to on/off switch tripped
Allow motor to cool and reset switch
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