Use and Care Manual

ST1010 6" Jointer (Mfd. Since 3/16)
-25-
Stock Inspection
and Requirements
Here are some rules to follow when choosing and
jointing stock:
• DO NOT joint or surface plane stock that
contains loose knots. Injury to the operator or
damage to the workpiece can occur if the knots
become dislodged during the cutting operation.
• DO NOT joint or surface plane against the
grain direction. Cutting against the grain
increases the likelihood of stock kickback, as
well as tear-out on the workpiece.
• Jointing and surface planing with the grain
produces a better finish and is safer for the
operator. Cutting with the grain is described
as feeding the stock on the jointer so the grain
points down and toward you as viewed on the
edge of the stock (see Figure 32).
Note: If the grain changes direction along the
edge of the board, decrease the cutting depth and
make additional passes.
1
⁄2" Min.
1" Min.
10" Min.
Figure 33. Minimum dimensions for edge jointing.
1
⁄2" Min.
1" Min.
Figure 34. Minimum dimensions for surface
planing.
• Only process natural wood fiber through
your jointer. Never joint MDF, particle board,
plywood, laminates or other synthetically made
materials.
• Make sure all stock is sufficiently dried before
jointing. Wood with a moisture content over
20% will cause unnecessary wear on the knives
and poor cutting results.
• Make sure your workpiece exceeds the min-
imum dimension requirements (see Figures
33 & 34) before edge jointing or surface plan-
ing, or it may break or kick back during the
operation!
With Grain
Against Grain
CORRECT
INCORRECT
FEED DIRECTION
FEED DIRECTION
ROTATION
ROTATION
INFEED TABLE
OUTFEED TABLE
INFEED TABLE
OUTFEED TABLE
Figure 32. Correct setting for grain alignment.
• Remove foreign objects from the stock. Make
sure that any stock you process with the jointer
is clean and free of any dirt, nails, staples, tiny
rocks or any other foreign objects that may dam-
age the jointer blades.