ST1013 12" Jointer (Mfd. Since 3/16)
-23-
Stock Inspection &
Requirements
Follow these rules when choosing and jointing
stock:
•
DO NOT joint or surface plane stock that
contains large or loose knots. Injury to the
operator or damage to the workpiece can occur
if a knot becomes dislodged during the cutting
operation.
•
Jointing and surface planing with the grain is
safer for the operator and produces a better
finish. Cutting against the grain increases the
likelihood of kickback and workpiece tear-out.
DO NOT cut against the grain! Cutting with the
grain is feeding the stock across the cutterhead
so the grain points down and back, as viewed
from the front edge of the stock (see Figure 22).
Note:
If the grain changes direction along the
edge of the workpiece, decrease the depth of cut
and make additional passes.
With Grain
Against Grain
CORRECT
INCORRECT
FEED DIRECTION
FEED DIRECTION
ROTATION
ROTATION
INFEED TABLE
OUTFEED TABLE
INFEED TABLE
OUTFEED TABLE
Figure 22. Proper grain alignment with the
cutterhead.
•
Scrape all glue off the workpiece before
jointing. Glue deposits on the workpiece, hard
or soft, will gum up the cutterhead and produce
poor results.
•
Remove foreign objects from the workpiece.
Make sure that any stock you process with the
jointer is clean and free of dirt, nails, staples, tiny
rocks or any other foreign objects that could
damage the cutterhead. These particles could
also cause a spark as they strike the cutterhead
and create a fire hazard.
Note:
Wood stacked on a concrete or dirt surface
can have small pieces of concrete or stone pressed
into the surface.
•
Make sure all stock is sufficiently dried before
jointing. Wood with a moisture content over
20% will cause unnecessary wear on the cutters
and poor cutting results. Excess moisture can
also hasten rust and corrosion.
•
Make sure your workpiece exceeds the min-
imum dimension requirements, as shown in
Figure 23, before processing it through the
jointer, or the workpiece may break or kick-
back during the operation.
•
Only process natural wood fiber through
your jointer. Your jointer is designed to cut
only natural wood stock. This machine is NOT
designed to cut metal, glass, stone, tile, prod-
ucts with lead-based paint, or products that
contain asbestos—cutting these materials with
a jointer may lead to injury.
10" Min.
1
/
4
" Min.
3
/
4
" Min.
10" Min.
1
/
2
" Min.
1" Min.
10" Min.
1
/
4
" Min.
3
/
4
" Min.
10" Min.
1
/
2
" Min.
1" Min.
Figure 23. Minimum stock dimensions for jointer.
