The following directions will give the beginner a start on jointer operations. Use scrap pieces of lumber to check the
settings and to get the feel of the operations before attempting regular work.
NOTE: The knives on the jointer will not wear evenly by feeding the wood through the same spot on the table
every time. Feed the wood through the jointer at different spots on the table to help eliminate uneven wear of
the knives.
ALWAYS USE CUTTERHEAD GUARD AND KEEP HANDS AWAY FROM CUTTERHEAD. USE PUSH
BLOCKS WHENEVER POSSIBLE.
Fig. 37C
PLACEMENT OF HANDS
DURING FEEDING
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-
derway, the new surface rests firmly on the outfeed table
as shown in Fig. 37C. 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.
NEVER PASS HANDS DIRECTLY
OVER THE CUTTERHEAD.
JOINTING AN EDGE
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. 38.
DO NOT PERFORM JOINTING OPERA-
TIONS ON MATERIAL SHORTER THAN
10 INCHES (254 mm), NARROWER
THAN 3/4 INCH (19 mm), OR LESS
THAN 1/2 INCH (12.7 mm) THICK
(REFER TO FIG. 39).
Fig. 39
OUT-FEED
TABLE
IN-FEED TABLE
CUTTER
MATERIAL
3/4" (19 mm) MINIMUM
10" (254 mm) MINIMUM
MINIMUM JOINTING DIMENSIONS
1/2" (12.7 mm)
MINIMUM
MACHINE USE
Fig. 37A
Fig. 37B
1.
JOINTING OPERATIONS
– 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, as shown in Fig. 37A. The workpiece is
moved from the infeed table, across the cutterhead
to the outfeed table.
2.
PLANING OPERATIONS
– 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, as shown in Fig. 37B.
The workpiece is moved from the infeed table,
across the cutterhead to the outfeed table. Use push
blocks when performing planing operations
whenever possible.
16
DEFINITION OF JOINTING, PLANING
