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-18- H2801 4" Jointer
Figure 16. Typical surface planing operation.
Surface Planing
The purpose of planing on a jointer is to produce
one flat surface. Once you have one flat surface
on a board, it can then more readily be milled to
precise, final dimensions on a thickness planer. It
is nearly impossible to surface plane both sides of
a board effectively because the two surfaced
sides will not be parallel to each other.
1. Inspect your lumber for soundness and grain
direction.
2. If the stock is cupped (warped), place the
concave side down and slowly feed it over
the cutterhead as shown in Figure 16.
Always use a push block(s) when planing
the surface of a board. Failure to comply
may result in serious personal injury.
3. Inspect your results. Most likely, many pass-
es will be necessary before your lumber has
a flat surface.
4. If the stock has large or loose knots, consid-
er finding another workpiece. Knots in a
workpiece can be dangerous to the operator,
as well as destructive to equipment.
Figure 15. Dust port.
Dust Collection
Any standard dust collection hose can be
attached to the 2
1
⁄2" dust dust port (Figure 15) on
the back of the Model H2801. To attach a dust
collecting system:
1. Insert the dust collection hose on the
exhaust port at the rear of the jointer. If your
hose is larger than the 2
1
⁄2" dust port,
adapters can be found in the current Grizzly
catalog.
2. Turn the dust collecting system ON.
3. Turn the jointer ON and continue with normal
jointing operations.
Remember to replace or empty the bag in the
dust collection system as necessary for proper
function.
Use ear protection when using the jointer
with a shop vacuum. The combined noise of
the two operating universal motors may
cause hearing loss over a long period of
time.