Grizzly G0490 Owner's Manual page 37

Symptom Possible Cause
Workpiece stops in 1. Outfeed table is set too high.
the middle of the
cut.
Chipping marks in 1. Knots or conflicting grain direction in wood.
workpiece.
2. Nicked or chipped blades/inserts.
3. Feeding workpiece too fast.
4. Taking too deep of a cut.
Fuzzy grain in 1. Wood may have high moisture content or
workpiece.
surface wetness.
2. Dull knives/inserts.
Long lines or ridges 1. Nicked or chipped knives/inserts.
that run along the
length of the board.
Uneven cutter 1. Feeding workpiece too fast.
marks, wavy
2. Knives not adjusted at even heights in the
surface, or chatter
cutterhead (G0490 only).
marks across the
face of the board.
Board edge is 1. Board not held with even pressure on
concave or convex
infeed and outfeed table during cut.
after jointing.
2. Board started too uneven.
3. Board has excessive bow or twist along its
length.
4. Insufficient number of passes.
Model G0490/G0490X (Mfd. Since 8/12)
Possible Solution
1. Align outfeed table with cutterhead knife at top dead
center (Page 43).
1. Inspect workpiece for knots and grain (Page 26);
only use clean stock.
2. Adjust one of the nicked knives sideways/rotate
inserts; replace knives/inserts (Page 37).
3. Slow down the feed rate.
4. Take a smaller depth of cut. (Always reduce cutting
depth when surface planing or working with hard
woods.)
1. Check moisture content and allow to dry if moisture
is too high.
2. Replace knives/rotate or replace inserts (Pages 37).
1. Adjust one of the nicked knives sideways/rotate
inserts; replace knives/inserts (Pages 37).
1. Slow down the feed rate.
2. Adjust the knives so they are set up evenly in
cutterhead (Page 37).
1. Hold board with even pressure as it moves over
cutterhead.
2. Take partial cuts to remove the extreme high spots
before doing a full pass.
3. Surface plane one face so there is a good surface
to position against fence.
4. It may take 3 to 5 passes to achieve a perfect edge,
depending on starting condition of board and depth
of cut.
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