Powermatic PJ-882HH Troubleshooting Operating Problems, Probable Cause Remedy

Troubleshooting – Operating Problems

Trouble

Finished stock is concave on back end.

Finished stock is concave on front end.

Finished stock is concave in the middle.

Ends of finished stock are cut more than the middle.

Chip out.

Fuzzy grain.

Cutterhead slows while operating.

Chatter marks on workpiece (standard cutterhead).

Uneven knife marks on workpiece.

Probable Cause	Remedy
Knife or knife insert is higher than	Raise outfeed table until it aligns with
outfeed table.	tip of knife/insert. See page 19.
Outfeed table is higher than knife or	Lower outfeed table until it aligns with
insert.	tip of knife/insert. See page 19.
Both tables have too much end fall.	Raise both table ends using the cam
	adjustment devices. See pages 17-18.
Table ends are raised higher than the	Lower both table ends using the cam
middle.	adjustment devices. See pages 17-18.
Cutting against the grain.	Cut with the grain whenever possible.
Dull knives or knife inserts.	Sharpen or replace knives.
	Rotate or replace 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 or knife inserts.	Sharpen or replace knives.
	Rotate or replace knife inserts.
Feeding workpiece too quickly, or	Feed more slowly, or apply less
applying too much pressure to	pressure to workpiece.
workpiece.
	Set knives properly using provided knife
Knives incorrectly set.	setting gauge. Check that knife slots
	are clean and free of dust or debris.
Feeding workpiece too fast.	Feed workpiece slowly and
	consistently.
Knives or knife inserts are nicked or	Replace nicked knives or rotate inserts;
	align standard knives properly using
out of alignment.
	knife-setting gauge. See pages 18-22.

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