11
TROUblEShOOTING: PERFORMANCE PROblEMS
Snipe.
(NOTE: Snipe can be
minimized until
negligible, but not
eliminated.)
Uneven depth of cut
side to side.
Board thickness does
not match depth of
cut scale.
Chain is jumping.
Fuzzy grain.
Trouble
Probable Cause
Remedy
Torn grain.
Rough/Raised grain.
Rounded, glossy surface.
Poor feeding of lumber.
Table rollers not set properly.
Inadequate support of long boards.
Uneven feed roller pressure front to back.
Dull knives. Replace knives.
Lumber not butted properly.
High moisture content in wood.
Dull knives.
Too heavy a cut.
Knives cutting against grain.
Dull knives.
Dull knives.
Too heavy a cut.
Moisture content too high.
Dull knives.
Feed speed too slow.
Cutting depth too shallow.
Inadequate feed roller pressure.
Planer table rough or dirty.
V-belt is slipping.
Surface of feed roller is clogged.
Knives are worn.
Cutterhead not level with bed.
Inadequate tension.
Sprockets misaligned.
Sprockets worn.
Adjust chain tension.
Align sprockets.
Replace sprockets.
Depth of cut scale incorrect.
Adjust depth of cut scale.
Adjust rollers to proper height.
Support long boards with extension tables.
Adjust feed roller tension.
Replace knives.
Butt end to end each piece of stock as they
pass through machine.
Remove moisture by drying, or use different
stock.
Replace knives.
Adjust proper depth of cut.
Cut along the grain.
Replace knives.
Replace knives.
Adjust proper depth.
Remove moisture by drying, or use
different stock.
Replace knives.
Increase speed.
Increase depth.
Adjust feed roller tension. If proper tension
cannot be achieved, replace feed rollers.
Clean pitch and residue, and apply paste
wax to planer table.
Tighten v-belt.
Clear pitch and residue out of teeth.
Replace knives.
Level the bed.
TROUblEShOOTING: MEChANICAl AND ElECTRICAl PROblEMS
Trouble
Probable Cause
Remedy
Summary of Contents for KN CM-15W3
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