Craftsman 315.277150 Operator's Manual page 17

ROUTING GROOVES PARALLEL TO AN EDGE
See Figure 13.
You can use the scale provided on the woodworking sub-
base to cut a straight parallel line up to 1 in. (25.4 mm) from
the edge of the workpiece.
[] The intersection of the horizontal and vertical lines at
the center of the woodworking sub-base indicates the
center of the cutter. This is also the center of groove
being cut.
[] For grooves more than 1 in. (25.4 mm) from the edge
of workpiece, align the center of desired groove on
the workpiece with the centedine on the woodworking
sub-base. Then measure from the centedine on the
sub-base to the guiding portion of the straight guide.
Tighten the knob on the straight guide securely.
[] Using "C" clamps and a board to act as the straight
edge, place the cutter at the desired position on the
workpiece and make the cut from right to left as shown
by the arrow in figure 13.
NOTE: The board being used as a straight edge must
be 1/4 in. (6.4 mm) thick or tess to prevent contact with
the trimmer base. Htmust also be at least as long as
the workpiece in order to be a guide.
[] The thrust is from the trimmer against the straight
edge.
[] Do not make a cut that is too heavy in one pass. If
a deep cut is required, make successive passes at
increasing depths with each new pass until you reach
the desired groove depth.
ROUTGROOVE FROMRIGHTTOLEFT
Fig. 13
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