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2

Use the blade screw wrench shown in Figure 3 to loosen the blade lock screw 

4. 

counter clockwise.  If the blade turns with the lock screw, you can stop it by insert-

ing one end of the pin (see Figure 3) through the hole in the blade at the location as 

shown in Figure 1.  There is a hole at the blade seating at that location. 

Take out the old blade and put the new blade in.  Make sure the two notches on the 

5. 

blade fit into the two pins on the blade seating, and the face of the blade (with the 

mark of HSS-100) toward outside.

Figure 3.  Special Tools

Blade Screw

Wrench

Pin

Pin

Grinding Wheel Shaft

Grinding

Wheel

Loosen

Figure 4.  Grinding Wheel Assembly

Sharpening Stone Replacement (See Figure 4)

Unplug the power cord.

1. 

Remove the felt ring around the grinding wheel shaft with a needle 

2. 

nose plier.  

Insert one end of the pin into the hole on the grinding wheel shaft.  

3. 

Hold the drill bit with your right hand and turn the grinding wheel 

with your left hand until it comes out.

Put a new grinding wheel, 

4. 

Stk#DT47/B,

 by turning it into the 

grinding wheel shaft.

Motor Brush Replacement

If the motor does not run well, you may need to change the motor brushes, 

Stk#DT47/C.

  Motor brushes must be replaced when the carbon length is 

less than 1/4 ” as shown in Figure 2.

Unplug the power cord.

1. 

Unscrew brush cap (see Figure 2) to take out the worn motor brush.

2. 

Put the new brush in, than screw and tighten the brush cap.  You 

3. 

should change both brushes at the same time so the motor runs 

smoothly.

Accessory with the cutter

1 special wrench (see Figure 3) for blade lock screw; 1 pin, 1 syringe of grease; 1 extra octagon blade, 1 grind-

ing stone, 1 pair of motor brushes, 1 brush screw. 

  

Warranty

3 month limited warranty against manufacturer defects of this cutting tool.  Abuse or dropping any portion of 

this tool will void the warranty.

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