Jet JJP-12, Инструкция по эксплуатации и каталог запасных частей

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23
Troubleshooting
Performance Troubleshooting – Jointer
Trouble Probable Cause Remedy
Finished stock is
concave on back
end.
Knife is higher than outfeed table.
Align cutterhead knives with outfeed
table. See
Setting Cutterhead Knives.
Finished stock is
concave on front end. Outfeed table is higher than knife.
Align cutterhead knives with outfeed
table. See
Setting Cutterhead Knives.
Cutting against the grain. Cut with the grain whenever possible.
Dull knives. Sharpen or replace knives.
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. 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.
Knives incorrectly set.
Set knives properly as described in
the
Setting Cutterhead Knives
section. Check that knife slots are
clean and free of dust or debris.
“Chatter” marks on
workpiece.
Feeding workpiece too fast.
Feed workpiece slowly and
consistently.
Uneven knife marks
on workpiece.
Knives are nicked, or out of
alignment.
Align knives per the Setting
Cutterhead Knives section. Replace
nicked knives.