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Machine Operation
Symptom
Possible Cause
Table(s) difficult to
1. Table lock(s) engaged/partially engaged.
adjust.
2. Infeed table stops blocking movement.
Excessive snipe
1. Outfeed table set too low, or knives
(gouge in end of
(G0656W only) set too high.
board that is uneven
with rest of cut).
2. Operator pushing down on trailing end of
workpiece as it leaves cutterhead.
Workpiece stops in
1. Outfeed table set too high.
middle of cut.
Workpiece chipping,
1. Not feeding workpiece to cut "with the
tear-out, or overall
grain."
rough cuts.
2. Dull knives/inserts.
3. Workpiece not suitable for jointing.
4. Nicked or chipped knives/inserts.
5. Feeding workpiece too fast.
6. Excessive cut depth.
7. Lack of proper dust collection or clogged
dust port.
Fuzzy grain.
1. Wood has high moisture content.
2. Dull knives/inserts.
Long lines or ridges
1. Nicked or chipped knives/inserts.
that run along length
of workpiece.
2. Loose or incorrectly installed insert(s).
3. Dirt or debris under carbide inserts (spiral
cutterheads only).
Uneven cutter
1. Feeding workpiece too fast.
marks, wavy
2. Knives not properly adjusted.
surface, or chatter
3. Dirt or debris under carbide inserts (spiral
marks across face
cutterheads only).
of workpiece.
Glossy surface;
1. Dull knives/inserts.
scorching or
burn marks on
2. Feed rate too slow.
workpiece.
Workpiece is
1. Workpiece not held with even pressure
concave or convex
against outfeed table during cut.
along its length after
jointing.
2. Workpiece too uneven at start of operation.
3. Outfeed table not parallel with infeed table.
-38-
Possible Solution
1. Completely loosen table lock(s) (Page 5).
2. Loosen/reset infeed table stops (Page 28).
1. Align outfeed table with cutterhead knife/insert at
top dead center (Page 23); adjust height of knives
(G0656W) evenly with outfeed table (Page 39).
2. Reduce/eliminate downward pressure on trailing
end of workpiece as it leaves cutterhead.
1. Align outfeed table with cutterhead knife/insert at
top dead center (Page 23).
1. Turn the workpiece 180° before feeding again.
2. Sharpen/replace knives; rotate/replace insert(s)
(Pages 39–41).
3. Ensure workpiece is suitable for jointing (Page 26).
4. Replace knives; rotate/replace insert(s)
(Pages 39–41).
5. Reduce feed rate.
6. Reduce cut depth (Page 27).
7. Clear blockages, ensure dust collector is operating
efficiently; upgrade dust collector.
1. Ensure wood moisture content is less than 20%.
Allow to dry if necessary.
2. Sharpen/replace knives; rotate/replace insert(s)
(Pages 39–41).
1. Replace knives; rotate/replace insert(s)
(Pages 39–41).
2. Remove/replace insert(s) and install properly
(Page 41).
3. Remove inserts, properly clean mounting pocket
and re-install (Page 41).
1. Reduce feed rate.
2. Properly adjust knives (Page 39).
3. Remove inserts, properly clean mounting pocket
and re-install (Page 41).
1. Sharpen/replace knives; rotate/replace insert(s)
(Pages 39–41).
2. Increase feed rate.
1. Apply even downward pressure against workpiece
throughout entire travel along outfeed side during
cut.
2. Take partial cuts to remove extreme high spots
before doing a full pass.
3. Check/Adjust table parallelism (Page 46).
Model G0656W/G0656XW (Mfd. Since 08/16)
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