Craftsman CMEW020 Manual De Instrucciones página 13

Definition of Jointing, Planing
Jointing Operations (Fig. CC)
Jointing cuts or edge jointing are made to square an edge
of a workpiece. The workpiece is positioned on the jointer
with the narrow edge of the workpiece on the infeed table
and the major flat surface of the workpiece against the
fence. The workpiece is moved from the infeed table, across
the cutterhead to the outfeed table.
Fig. CC
Planing Operations (Fig. DD)
Planing or surfacing are identical to the jointing operation
except for the position of the workpiece. For planing, the
major flat surface of the workpiece is placed on the infeed
table of the jointer with the narrow edge of the workpiece
against the fence. The workpiece is moved from the
infeed table, across the cutterhead to the outfeed table.
Use push blocks when performing planing operations
whenever possible.
Fig. DD
Placement of Hands During Feeding
(Fig. BB)

WARNING: Never pass hands directly over
the cutterhead.
At the start of the cut, the left hand holds the work firmly
against the infeed table and fence, while the right hand
pushes the work toward the knives. After the cut is un der-
way, the new surface rests firmly on the outfeed table as
shown in Fig. BB. The left hand should then be moved to
the work on the outfeed table, at the same time maintaining
flat contact with the fence. The right hand presses the work
forward, and before the right hand reaches the cutterhead it
should be moved to the work on the outfeed table.
Jointing an Edge (Fig. CC, EE)

WARNING: Do not perform jointing operations on
material shorter than 10" (254 mm), narrower than
3/4" (19 mm), or less than 1/2" (12.7 mm) thick.
This is the most common operation for the jointer. Set the
guide fence square with the table. Depth of cut should be
the minimum required to obtain a straight edge. Hold the
best face of the piece firmly against the fence throughout
the feed as shown in Fig. CC.
Fig. EE
MiniMUM JOinTing DiMEnsiOns
1/2"
(12.7 mm)
MIN I MUM
3/4" (19 mm) MIN I MUM
Planing Warped Pieces
If the wood to be planed is dished or warped, take light
cuts until the surface is flat. Avoid forcing such material
down against the table; excessive pressure will spring it
while passing the knives, and it will spring back and remain
curved after the cut is completed.
Planing Short or Thin Work (Fig. BB, FF)

WARNING: Do not perform jointing operations on
material shorter than 10" (254 mm), narrower than
3/4" (19 mm), or less than 1/2" (12.7 mm).
When planing short or thin pieces, always use push blocks
to minimize all danger to the hands. Fig. BB, illustrates using
the push blocks properly.
39
English
11