Powermatic PM3000 - Manual (Page 22)

22
Bevel and Miter Operations
Bevel Cut – A bevel cut is a special type of
operation where the saw blade is tilted at an
angle less than 90 degrees to the table top
(Figure 30). Operations are performed in the
same manner as ripping or crosscutting except
the fence or miter gauge should be used on the
right-hand side of the saw blade to provide
added safety in avoiding a binding action
between the saw blade and the table top. When
beveling with the miter gauge, the workpiece
must be held firmly to prevent creeping.
Figure 30
Crosscut – Crosscuts made at an angle to the
edge of the workpiece are called miters
(Figure 31). Set the miter gauge at the required
angle, lock the miter gauge, and make the cut
the same as a normal crosscut except the
workpiece must be held extra firmly to prevent
creeping.
Note: When making compound miters (with
blade tilted) use the miter gauge in the right
hand slot to provide more hand clearance and
safety.
Have the blade extend only 1/8" above the top of
the workpiece. Exposing the blade above this
point can be hazardous.
Figure 31
Dado Cutting – Dadoing is cutting a wide
groove into a workpiece or cutting a rabbet
along the edge of a workpiece. A dado insert,
shown in Figure 32, is necessary for this type of
operation. [A dado insert for the PM3000, stock
no. 1791081, is available from your Powermatic
dealer.]
Do not use the standard table
insert for dadoing operations.
Figure 32
The process of cutting 1/8" to 13/16" grooves in
workpieces is accomplished by the use of a
stacked dado blade set or an adjustable type
blade mounted on the saw arbor. By using
various combinations of the stacked dado
blades, or properly setting the dial on an
adjustable blade, an accurate width dado can be
made. This is very useful for shelving, making
joints, tenoning, etc.
The guard, riving knife, and anti-kickback pawls
supplied with the saw should be used for all
cutting operations where they can be used.
When performing operations where the guard
can not be used, as in some dadoing operations,
alternative safety precautions should be taken.
These include push sticks, feather boards, filler
pieces, fixtures, jigs and any other appropriate
device that can be utilized to keep operator's
hands away from the blade.
Upon completion of the operation requiring
removal of the guard, the entire guard assembly
must be placed back on the machine in its
proper working order.
Never use a dado head in a
tilted position. Never operate the saw without
the blade guard, riving knife and anti-
kickback pawls for operations where they
can be used.