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DIRECTION
OF FEED AND THRUST
See Figures 6 and 7.
The trimmer motor and cutter revolve in a clockwise direc-
tion. This gives the tool a Might tendency to twist in your
hands in a counterclockwise
direction, especially when
the motor starts.
Feed the trimmer into the workpiece from left to right.
When fed from left to right, the rotation of the cutter pulis
the trimmer against the workpiece. Hffed in the opposite
direction, the rotation forces of the spinning cutter will
tend to throw the trimmer away from the workpiece, caus-
ing kickback. This could result in loss of control of the
trimmer.
Because of the extremely high speed of cutter rotation
during a proper feeding operation, there is very !ittle kick-
back to contend with under normal conditions.
However,
shoutd the cutter strike a knot, hard grain, foreign object,
etc. that would affect the normal progress of the cutting
action, there will be a slight kickback. Kickback could be
sufficient to spoil the trueness of your cut if you are not
prepared. Such a kickback is always in the direction op-
posite the direction of cutter rotation.
To guard against kickback, plan your set-up and direction
of feed so that you will always be thrusting the tool--to
hold it against whatever you are using to guide the cut--in
the same direction that the leading edge of the cutter is
moving. The thrust should be in a direction that keeps the
sharp edges of the cutter continuously
biting straight into
new (uncut) wood.
NOIIO3UI(]
TRIMMER FEED
DIRECTION
_w
p-
ROTATION
Fig. 6
GUIDEOUTSIDE
ROTATIO.
GUIDE
GUIDEINSIDE
FEED
ROTATIONE_ _
GUID
THRUST
Fig. 7
12
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