Grizzly 12" Jointer w/spiral cutterhead manual insert User Manual download pdf (Page 48)

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

⁄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

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 72 73

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Grizzly 12" Jointer w/spiral cutterhead manual insert User Manual Page 48

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