Powermatic 60C, 60HH Troubleshooting Operating Problems, Straight cutterhead Replace nicked

Troubleshooting – Operating Problems

Trouble

Finished stock is concave on back end.

Finished stock is concave on front end.

Stock has slight bevel after edge jointing.

Chip out.

Fuzzy, rough, or torn grain.

Board thickness does not match depth of cut scale.

Cutterhead slows while operating.

“Chatter” marks on workpiece.

Uneven knife marks on workpiece.

Probable Cause	Remedy
Knife is higher than outfeed table.	Raise outfeed table until it aligns with
	tip of knife. See pages 18-19.
Outfeed table is higher than knife.	Lower outfeed table until it aligns with
	tip of knife. See pages 18-19.
Fence not perpendicular to table.	Square up fence with table.
Cutting against the grain.	Cut with the grain whenever possible.
Dull knives/knife inserts.	Sharpen or replace knives.
	Rotate knife inserts.
Feeding workpiece too fast.	Use slower rate of feed.
Cutting too deeply.	Make shallower cuts.
Knots, imperfections in wood.	Inspect wood closely for imperfections;
	use different stock if necessary.
Wood has high moisture content.	Allow wood to dry or use different stock.
Dull knives/knife inserts.	Sharpen or replace knives.
	Rotate knife inserts.
Knives are cutting against grain.	Cut with the grain.
Depth of cut scale is incorrect.	Loosen screw and adjust scale
	accordingly.
Feeding too quickly, or applying too	Feed more slowly, or apply less
much pressure to workpiece.	pressure to workpiece.
Excessive depth of cut.	Reduce depth of cut.
Dull knives/knife inserts.	Sharpen or replace knives.
	Rotate knife inserts.
Knives incorrectly set on straight	Set knives properly using provided knife
	setting gauge. Check that knife slots
cutterhead.
	are clean and free of dust or debris.
Feeding workpiece too fast.	Feed workpiece slowly and
	consistently.
	Straight cutterhead: Replace nicked
Knives are nicked, or out of	knives; align knives properly using
	knife-setting gauge. See pages 14-16.
alignment.	Helical cutterhead: Rotate nicked
	inserts. See page 16.

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