1. Dadoing is cutting a rabbet or wide groove into the work. Most dado head sets are made up of
two outside saws and four or five inside cutters, (Fig. 44). Various combinations of saws and
cutters are used to cut grooves from 1/8" to 13/16" for use in shelving, making joints, tenoning,
grooving, etc. The cutters are heavily swaged and must be arranged so that this heavy portion
falls in the gullets of the outside saws, as shown in Fig. 45. The saw and cutter overlap is shown
in Fig. 46, (A) being the outside saw, (B) an inside cutter, and (C) a paper washer or washers,
used as needed to control the exact width of groove. A 1/4" groove is cut by using the two
outside saws. The teeth of the saws should be positioned so that the raker on one saw is beside
the cutting teeth on the other saw.
2. Attach the dado head set (D) Fig. 47, to the saw arbor.
NOTE: THE OUTSIDE ARBOR FLANGE CAN NOT BE USED WITH THE DADO
HEAD SET, TIGHTEN THE ARBOR NUT AGAINST THE DADO HEAD SET
BODY. DO NOT LOSE THE OUTSIDE ARBOR FLANGE. IT WILL BE NEEDED
WHEN REATTACHING A BLADE TO THE ARBOR.
3. Fig. 48, shows a typical dado operation using the miter gauge as a guide.
THE DADO HEAD SET TABLE INSERT (E) FIG. 47, MUST BE USED IN PLACE
OF THE STANDARD TABLE INSERT. THIS IS AVAILABLE AS A SERVICE
PART THROUGH A BLACK & DECKER SERVICE CENTER.
THE BLADE GUARD AND SPLITTER ASSEMBLY CANNOT BE USED WHEN
DADOING AND MUST BE REMOVED OR SWUNG TO THE REAR OF THE
SAW. AUXILIARY JIGS, FIXTURES, PUSH STICKS AND FEATHER BOARDS
SHOULD ALSO BE USED.
NEVER USE THE DADO HEAD IN A BEVEL POSITION.
ALWAYS INSTALL BLADE GUARD AFTER OPERATION IS COMPLETED.
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Fig. 44
Fig. 45
B
A
C
Fig. 46
D
Fig. 47
Fig. 48
E