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Troubleshooting – Operating Problems
Trouble Probable Cause Remedy
Finished stock is
concave on back
end.
Knife is higher than outfeed table.
Raise outfeed table until it aligns with
tip of knife. (see page 13)
Finished stock is
concave on front end.
Outfeed table is higher than knife.
Lower outfeed table until it aligns with
tip of knife. (see page 13)
Finished stock is
concave in the
middle.
Both tables have too much end fall. Raise both table ends using the
adjustment screws below the tables
(see Figure 35).
Figure 35
Ends of finished
stock are cut more
than the middle.
Table ends are raised higher than the
middle.
Lower both table ends using the
adjustment screws under the tables
(see Figure 35).
Cutting against the grain. Cut with the grain whenever possible.
Dull knives/inserts. Sharpen or replace knives/inserts.
Feeding workpiece too fast. Use slower rate of feed.
Cutting too deeply. Make shallower cuts.
Chip out.
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.
Fuzzy grain.
Dull knives/inserts. Sharpen or replace knives/inserts.
Cutterhead slows
while operating.
Feeding workpiece too quickly, or
applying too much pressure to
workpiece.
Feed more slowly, or apply less
pressure to workpiece.
Knife/inserts incorrectly set.
Set knives properly using provided knife
setting gauge (straight cutterhead only
– see page 15). Check that insert slots
are clean and free of dust or debris
(helical cutterhead only).
“Chatter” marks on
workpiece.
Feeding workpiece too fast.
Feed workpiece slowly and
consistently.