Grizzly 12" Parallelogram Jointer G0609 - Manual (Page 36)

G0609 12" Parallelogram Jointer
-33-
Symptom Possible Cause Possible Solution
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 end of
workpiece.
1. Align outfeed table with cutterhead
knife at top dead center ( Page 18) .
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 18).
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 side-
ways; replace knives ( Page 35).
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 too high.
2. Replace knives ( Page 35).
Long lines or ridges that run along the
length of the board 1. Nicked or chipped knives. 1. Adjust one of the nicked knives side-
ways; replace knives ( Page 35).
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 35).
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 small-
er 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 35).
4. Adjust one of the nicked knives side-
ways; replace knives ( Page 35).
Cutting
Symptom Possible Cause Possible Solution
Tables are hard
to adjust. 1. Table lock is engaged or partially engaged.
2. Table stops blocking movement. 1. Completely loosen the table lock.
2. Loosen/reset table positive stops.
Table