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Troubleshooting
Performance Troubleshooting
Problem Possible Cause Solution
Table rollers not set properly. Adjust rollers to proper height
Inadequate support of long
boards.
Support long boards with extension rollers.
Uneven feed roller pressure front
to back.
Adjust feed roller tension
Dull knives. Sharpen knives.
Snipe
Note: Snipe can
be minimized but
not eliminated
Lumber not butted properly. Butt end to end each piece of stock as they
pass through.
Planing wood with a high
moisture content.
Remove high moisture content from wood by
drying.
Fuzzy Grain
Dull knives. Sharpen or replace.
Too heavy a cut. Adjust proper depth of cut
Knives cutting against grain. Cut along the grain.
Torn Grain
Dull knives. Sharpen knives.
Dull knives. Sharpen knives.
Too heavy a cut. Adjust proper depth.
Rough/Raised
Grain
Moisture content too high. Remove high moisture content from wood by
drying.
Dull knives. Sharpen or replace knives.
Feed speed too slow. Increase speed.
Rounded, glossy
surface
Cutting depth too shallow. Increase depth.
Inadequate feed roller pressure. Adjust feed roller tension. If proper tension
cannot be achieve, replace feed rollers
Planer bed rough or dirty. Clean pitch and residue, and wax planer table.
Transmission v-belt slipping. Tighten transmission v-belt.
Poor feeding of
lumber.
Surface of feed rollers clogged. Clear pitch and residue out of teeth.
Knife projection. Adjust knife projection. Uneven depth of
cut side to side.
Cutterhead not level with bed. Level bed.
Board thickness
does not match
depth of cut
scale.
Depth of cut scale incorrect. Adjust depth of cut scale.