Sears 113.2945 USE Dado Head, Molding or Shaping, Removal and Installation Manual Brake Assembly

	USE		OF	THE DADO			HEAD
The dado saw (or head) is a special set of blades for cutting											7
grooves and dados. The Craftsman 8-inch Kromedge Dado
Set may be purchased at any Sears Retail Store or Catalog
Order	House. The complete				head consists of				two outside
blades 1/8-inch thick, six chipper blades 1/8-inch thick
and paper washers for 1/16-inch width adjustments. With
these blades, grooves may be made in widths of 1/8-inch,
1/4-inch, and additional widths in steps increased by
1/16-inch each, up to a maximum of 13/16-inch. Outside
blades may be used alone, but chippers cannot be used
alone. When the maximum 13/16-inch width of dado is
used on the motor shaft, the outside loose collar must not
be used. The width of the dado can be reduced while using
the loose collar and two or more passes may be made with
the work to obtain the desired width of cut. Whenever two
or more chippers are used, the cutting ends should be											Figure 35
staggered as evenly as possible around the circumference.
Fractional adjustments in thickness of the head can be
made by using paper washers between the								outside blades
and chippers.
Dado	head	operations		are	essentially the			same as		those
operations		using	a standard		saw		blade--but		the	dado
head takes a bigger bite, therefore, the work-piece should
be held more firmly. When a groove wider than the dado
head is needed, make two or more passes, with cuts spaced
to overlap a trifle. Dado work is performed in the cross-cut
position. Ploughing is done in the ripping position. If the
rip or plough position is used, the saw guard and anti-
kickback pawl assembly should be adjusted as described
in the paragraph "RIPPING". Rabbeting is done with the
motor shaft in a vertical position. (See figure 35.) When
rabbeting, the motor is indexed 90 ° to the vertical position
so the blades are between the table top and motor, and
the yoke is indexed 90 ° clockwise and locked. The saw
is moved back on the radial arm and locked to the arm
when the amount of the blade extending forward of the
fence	is equal to		the	depth	of	the	rabbet	desired.		If the	BRAKE
depth	of the rabbet is large,				do	not	attempt	to	cut it	in one	BRAKE

operation.	Lower	the radial arm			until	blades are in a			_'--_/	DRUM	HOUSING
											ASSEMBLY
position to	cut the	desired	width	of	rabbet in the		edge	of
the board.	The discharge		elbow	should		be directed	to	the

rear of the saw.

MOLDING OR SHAPING

This work is performed with Craftsman Molding Cutter Heads, and a set of cutters depending on the type of mold- ing cut desired. The saw is positioned in the same manner as that described for rabbeting. (See figure 36.) Since the position of the cutters can be adjusted with respect to the

fence and table top, any or all of the cutter shapes may be used.

The Molding Cutter Guard should be used with Molding Cutter Head.

REMOVAL AND INSTALLATION OF

MANUAL BRAKE ASSEMBLY

Prior to performing any operation that requires the use of the motor shaft opposite the saw blade end (routing, dove- tailing, boring, sanding, etc.), it will be necessary to remove the manual broke assembly to expose the end of the shaft.

This is accomplished as follows: (See figure 37.)

1.Remove the guard assembly, saw blade and both cottars.

2.Remove two 1/4-20 x 7!16-inch, hex-head screws to free the brake housing from the motor.

w

(7/4-20 x 7/16 IN., HEX-HD)

MOTOR

Figure 37

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3.Pull the brake housing off end of motor housing, leaving the brake shoe and spring in the brake housing.

4.Hold the motor shaft (at saw end) with the shaft wrench and remove the brake drum from motor shaft with the arbor wrench. (This end of motor shaft has right-hand threads.)

5.Install a chuck or other accessory as required, on end of motor shaft and tighten it firmly on the threads. The motor shaft should be held with the shaft wrench at saw

end of shaft while tightening the chuck or other accessory.

6.When finished with the particular operation being per- formed, install the manual brake assembly by reversing

the preceding removal procedure. (See figure 37.)

7.Install saw blade and guard assembly.

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