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OPERATION
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 slight 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 | TRIM GRAINS | |
fed from left to right, the rotation of the cutter pulls the trim- | ||
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mer against the workpiece. If fed in the opposite direction, |
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the rotation forces of the spinning cutter will tend to throw | END FIRST | |
This could result in loss of control of the trimmer. | ||
the trimmer away from the workpiece, causing kickback. |
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Because of the extremely high speed of cutter rotation dur- |
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ing a proper feeding operation, there is very little kickback |
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to contend with under normal conditions. However, should |
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the cutter strike a knot, hard grain, foreign object, etc. that |
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would affect the normal progress of the cutting action, there |
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will be a slight kickback. Kickback could be sufficient to |
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spoil the trueness of your cut if you are not prepared. Such |
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a kickback is always in the direction opposite the direction |
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of cutter rotation. |
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To guard against kickback, plan your |
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of feed so that you will always be thrusting the |
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hold it against whatever you are using to guide the |
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the same direction that the leading edge of the cutter is |
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moving. The thrust should be in a direction that keeps the |
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sharp edges of the cutter continuously biting straight into |
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new (uncut) wood. |
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DIRECTION |
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FEED TRIMMER |
|
ROTATION | TRIMMERFEED DIRECTION |
BIT |
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| BIT |
| ROTATION |
TRIMMER FEED |
|
DIRECTION |
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| Fig. 6 |
GUIDE OUTSIDE |
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| THRUST |
ROTATION | FEED |
|
GUIDE
GUIDE INSIDE
ROTATION
GUIDE
FEED
THRUST
Fig. 7
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