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TROUBLE-SHOOTING: OPERATING PROBLEMS (201 Planer)
PROBLEM POSSIBLE CAUSE SOLUTION
Snipe 1. Table rollers not set properly. 1. Adjust rollers to proper height.
2. Inadequate support of long boards. 2. Support long boards with extension
(NOTE: Snipe can be rollers.
minimized but not 3. Uneven feed roll pressure front to back. 3. Adjust feed roll tension.
eliminated.) 4 Dull knives 4. Sharpen knives.
5. Lumber not butted properly. 5. Butt end to end each piece of stock
as they pass through.
Fuzzy Grain 1. Planing wood with a high moisture 1. Remove high moisture content
content. from wood by drying.
2. Dull knives. 2. Sharpen knives.
Torn Grain 1. Too heavy a cut. 1. Adjust proper depth of cut.
2. Knives cutting against grain. 2. Review planing for finish.
3. Dull knives. 3. Sharpen knives.
Rough/Raised Grain 1. Dull knives. 1. Sharpen knives.
2. Too heavy a cut. 2. Adjust proper depth of cut.
3. Moisture content too high. 3. Remove high moisture content
from wood by drying.
Rounded glossy 1. Dull knives. 1. Sharpen or replace knives.
surface
Poor feeding of lumber. 1. Inadequate feed roll pressure. 1. Adjust feed roll tension. If proper
tension cannot be achieved,
replace feed rolls.
2. Planer bed rough or dirty. 2. Clean pitch and residue, and wax
planer bed.
3. Transmission v-belt slipping. 3. Tighten transmission v-belt.
4. Surface of feed rolls too smooth. 4. Lightly roughen the feed roll
surface with sandpaper.