JET Tools JWP-15HH User Manual - Page 21

Troubleshooting the JWP-15DX/15HH

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11.0 Troubleshooting the JWP-15DX/15HH 11.1 Performance problems Trouble Probable Cause Table rollers not set properly. Snipe. (NOTE: Snipe can be minimized until negligible, but not eliminated.) Inadequate support of long boards. Uneven feed roller pressure front to back. Dull knives. Lumber not butted properly. Fuzzy grain. Torn grain. Rough/Raised grain. 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. Rounded, glossy surface. Dull knives. Feed speed too slow. Cutting depth too shallow. Inadequate feed roller pressure. Poor feeding of lumber. Planer table rough or dirty. V-belt is slipping. Surface of feed roller is clogged. Remedy Adjust rollers to proper height. Support long boards with extension rollers. 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. 21

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11.0
Troubleshooting the JWP-15DX/15HH
11.1
Performance problems
Trouble
Probable Cause
Remedy
Snipe.
(NOTE: Snipe can be
minimized until
negligible, but not
eliminated.)
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.
Replace knives.
Lumber not butted properly.
Butt end to end each piece of stock
as they pass through machine.
Fuzzy grain.
High moisture content in wood.
Remove moisture by drying, or use
different stock.
Dull knives.
Replace knives.
Torn grain.
Too heavy a cut.
Adjust proper depth of cut.
Knives cutting against grain.
Cut along the grain.
Dull knives.
Replace knives.
Rough/Raised grain.
Dull knives.
Replace knives.
Too heavy a cut.
Adjust proper depth.
Moisture content too high.
Remove moisture by drying, or use
different stock.
Rounded, glossy
surface.
Dull knives.
Replace knives.
Feed speed too slow.
Increase speed.
Cutting depth too shallow.
Increase depth.
Poor feeding of
lumber.
Inadequate feed roller pressure.
Adjust feed roller tension. If proper
tension cannot be achieved, replace
feed rollers.
Planer table rough or dirty.
Clean pitch and residue, and apply
paste wax to planer table.
V-belt is slipping.
Tighten v-belt.
Surface of feed roller is clogged.
Clear pitch and residue out of teeth.