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Powermatic 64A - Kickback Prevention and Safe Sawing; Identifying and Avoiding Kickback Causes

Powermatic 64A
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22
d. Using a dull saw blade.
e. Not maintaining alignment of the rip fence. (Fence
should angle away from, rather than towards, the saw
blade front to back.)
NOTE: A caution decal on guard and splitter assem-
bly warns against misalignment.
f. Applying feed force in ripping to the cutoff (free)
section of the workpiece instead of the section be-
tween the saw blade and fence. Use push sticks or
push blocks for narrow, thin, or short work.
g. Ripping wood that is twisted (not flat), or does
not have a straight edge, or has a twisted grain.
To minimize or prevent injury from kickbacks:
a. Avoid conditions listed above.
b. Wear a safety face shield, goggles, or glasses.
c. Do not use the mitre gauge and rip fence in the
same operation unless provision is made of a facing
board on the fence to allow the cutoff section of the
workpiece to come free before the cut is started. (see
page 24)
d. Check the operation of the anti-kickback pawls
before starting a cut. If the pawls do not stop the
reverse motion of a workpiece, resharpen all the points.
e. Keep your face and body out of line with poten-
tial kickbacks when possible, including when starting
or stopping the machine.
3. Dull or improperly sharpened blades and blades
with gum or resin adhering to them may cause an
accident with the tilting arbor saw. Never use a cracked
saw blade. The use of a sharp, well maintained, and
correct cutting tool for the operation will help avoid
kickbacks.
4. Support the work properly and hold it firmly
against the gauge or fence. Use a push stick or block
when ripping short, narrow (6" width or less), or thin
work. Use a push block or mitre gauge hold-down
when dadoing or molding. (Figure 32)
5. For added safety in crosscutting use an auxil-
iary wood facing attached to the mitre gauge using
the holes provided. (Figure 33)
6. Never use the fence as a length stop when cross-
cutting. Do not hold on to or touch the free end or
cutoff section of a workpiece. On through-sawing op-
erations, the cutoff section must not be confined.
FIGURE 32
FIGURE 33

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