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W1755 6" Parallelogram Jointer
SERVICE
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
Excessive snipe (gouge in
the end of the board that
is uneven with the rest of
the cut).
1. Outfeed table is set too low.
2. Operator pushing down on trailing
end of the workpiece.
1. Align outfeed table at top dead center of the
cutterhead knives (
Page 35).
2. Reduce/eliminate downward pressure on that end of
workpiece.
Workpiece stops in the
middle of the cut.
1. Outfeed table is set too high. 1. Align outfeed table with cutterhead knife at top
dead center (
Page 35).
Chipping. 1. Knots or conflicting grain direction
in wood.
2. Nicked or chipped blades.
3. Feeding workpiece too fast.
4. Taking too deep of a cut.
1. Inspect workpiece for knots and grain (
Page 21);
only use clean stock.
2. Adjust one of the nicked knives sideways; replace
knives (
Page 30).
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.)
Fuzzy Grain. 1. Wood may have high moisture con
-
tent or surface wetness.
2. Dull knives.
1. Check moisture content and allow to dry if moisture
is over 15%.
2. Replace knives (
Page 30).
Long lines or ridges that
run along the length of the
board.
1. Nicked or chipped knives. 1. Shift one of the nicked knives sideways so the nicks
don't line up; replace knives (
Page 30).
Uneven cutter marks, wavy
surface, or chatter marks
across the face of the
board.
1. Feeding workpiece too fast.
2. Knives not adjusted at even heights
in the cutterhead.
1. Slow down the feed rate.
2. Adjust the knives so they are set up evenly in the
cutterhead (
Page 30).
Board edge is concave or
convex after jointing.
1. Board not held with even pressure
on infeed and outfeed table during
cut.
2. Board started too uneven.
3. Board has excessive bow or twist
along its length.
4. Insufficient number of passes.
1. Hold board with even pressure as it moves over the
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 the fence.
4. It may take 3 to 5 passes to achieve a perfect edge,
depending on the starting condition of the board and
the depth of cut.
Uneven cut or breakout
when rabbeting.
1. Uneven feed rate.
2. Depth of cut too deep.
3. Knives not adjusted evenly with
each other in the cutterhead.
4. Nicked or chipped knives.
1. Feed the board evenly and smoothly during the
cut.
2. Raise the infeed table to take a smaller depth of
cut. Never exceed
1
⁄16" per pass when rabbeting.
3. Adjust the knives so they are set up evenly in the
cutterhead (
Page 30).
4. Shift one of the nicked knives sideways so the nicks
don't line up; replace knives (
Page 30).
Cutting