Festool Domino DF 500 User Manual download pdf (Page 21)

Calibrating the Locating Pins or Edge Stop Dogs

It is important that the two locating pins/dogs are perfectly

spaced from the center of the mortise hole for properly

aligned mortises. The right-hand locating pin is adjustable by

rotating the eccentric bushing, and the edge stop dogs are

adjustable by replacing one dog with an offset dog (a pair of

offset dogs are included with the Domino).

1. Using the procedure described in “Using the Locating Pins

or Edge Stop Dogs

” on page 11, plunge a left-hand and

right-hand mortise into two blocks of scrap wood. Make

sure the mortise width dial (see page 8) is set to the

smallest setting.

2. Insert a Domino tenon into the resulting mortise and fit

the two pieces together without glue.

3. Examine the alignment of the ends of the two blocks of

wood. Note that you are only concerned about the ends

where the locating pins were used.

► If the two ends are flush, no adjustment is necessary.

► In the example shown to the right, the adjustable pin

(or right-hand dog) is too close to the mortise;

increase the distance of the pin as described below.

4. If an adjustment is necessary, follow the applicable

procedure listed for either the pins or dogs.

5. Repeat the test process to verify that the adjustment is

correct.

Instruction Manual 21

Adjusting the Locating Pin

The right hand locating pin has an eccentric bushing that

changes the position of the pin as the bushing is rotated. Use

the following steps to adjust the position of the pin.

1. Loosen the bushing’s setscrew using a 2 mm hex key.

2. Using a large screwdriver, rotate the eccentric

bushing to move the adjustable pin closer to or

farther from the mortise slot.

► It is necessary to depress the pin in order to

engage the screwdriver in the eccentric bushing.

► The factory default (neutral) setting is shown in

the image below. The screwdriver slot is in the

vertical position.

► Each hash mark represents 0.25mm (0.010 inch).

► Don’t turn the bushing any farther than ¼-turn to

the left or ¼-turn to the right from the neutral

position.

► Compare your test pieces to the image to the left,

and increase or decrease the distance of the right

hand pin accordingly.

3. Retighten the setscrew.

Removing and Adjusting the Edge Stop Dogs

To adjust the edge stop dogs, you replace the standard

dog with one of the offset dogs. The offset dog is 0.006”

(0.15mm) narrower than the standard dog, and you

replace whichever dog resulted in the larger distance to

the mortise. In the example shown to the left, the left-

hand dog needs to be replaced with the offset dog.

1. While holding the dog in the retracted position,

remove the position limiting setscrew from the dog.

2. While being careful to not lose the return spring,

rotate the dog to the top position as shown, and

then slide the dog out of the fence housing.

3. Reinstall the new dog in the reverse process.

4. Take care not cross the threads when installing the

setscrew.

5. Leave the head of the setscrew slightly proud of the

surface of the dog.

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Festool Domino DF 500 User Manual Page 21

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