9. STANDARD ADJUSTMENTS

9-11. Adjusting the contact between the knife and the cutting block

0971Q

1. Knife incision

2. Knife incision

3. Two knife

4. Partial knife

is correct

is too deep

incisions

incision

19mm

3 mm

0972Q

1.Remove the cutting block. (Refer to the previous page.)

2.If the knife incision on the surface of the cutting block is very deep, if there are two or more incisions on the cutting block because different knives were used, or if only part of the incision has been made, grind the surface of the cutting block smoothly until a single knife incision can still be seen faintly.

3.The cutting pressure over the whole of the cutting block should be uniform so that the material will be cut cleanly.

Grind the surface of the cutting block so that the knife incision will be uniform over the whole of the cutting block.

*The cutting block can be filed until its height is 19 mm.

4.If the material cannot be cut cleanly even though the cutting block has been ground correctly, check whether the tip of the knife is worn.

*If the tip is worn, replace the knife.

Do not use the old cutting block after the knife has been replaced, otherwise it may damage the tip of the knife.

Adjusting the contact between the knife and the cutting block

To see the knife incision more easily, color the cutting surface of the cutting block with a marker pen.

1.Operate the cutting block three times with the knife making a mark on it each time.

2.Adjust the position of the cutting block or contact between the knife and the cutting block until the knife consistently makes a mark in the same place.

Filing the cutting surface of the cutting block

Use a flat file for filing.

1.Filing the cutting surface of the cutting block on which the knife incision breaks off or is shifted 1-1. Grip the cutting block in a vise.

1-2. File the surface of the cutting block smoothly until the knife incision is eraced away.

2.Filing the cutting surface of the cutting block in which knife incision is deep 2-1. Grip the cutting block in a vise.

2-2. File the surface of the cutting block smoothy until a single knife incision can still be seen faintly.

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Brother DH4-B980 instruction manual Filing the cutting surface of the cutting block

DH4-B980 specifications

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