Keeping the wheel straight, screw it onto the thread of the screw-type mandrel as far as the flange.

Screw-type mandrel

Flange

Fig. 7 (a)

2.How to use the wheel mandrel (Fig. 7 (b)) Remove the screw in the end of the mandrel with a flathead screwdriver and attach the cutting wheel or sanding disc.

English

Iron powder on the collet nut, collet or shaft screw may cause the collet nut to be dicult to rotate. (Fig. 9)

Be sure to remove any powder before attaching or detaching the tip tool.

Push

Lock button Loosen

Collet nut

Attachment

Fig. 8

Wheel mandrel

Screw in end

Fig. 7 (b)

3.How to use the drum mandrel (Fig. 7 (c))

A 60-grit sanding band is fitted to the drum mandrel when it leaves the factory.

Loosen the screw in the end of the mandrel with a screwdriver to remove/attach the sanding band.

After attaching the sanding band, tighten the screw securely.

Drum mandrel Sanding band

Screw in end

Fig. 7 (c)

4.Attach the tip tool to the grinder

Rotate the collet nut by hand while pressing the lock button to further depress the lock button. In this state, the shaft is locked and the collet nut can be loosened or tightened. (Fig. 8)

To attach the tip tool, insert the tip tool as far as it will go and tighten the collet nut securely.

To detach the tip tool, the collet nut can usually be rotated by hand, though occasionally it may be tight.

If the collet nut is tight, use the provided collet spanner to loosen it.

Collet nut Collet Shaft screw

Fig. 9

NOTE

Very occasionally, the tip tool may be dicult to detach from the collet.

If this happens, with the collet nut loosened, press the end of the tool lightly against a hard object. (Fig. 10)

5.Balance adjustment of the tip tool

After attaching the tip tool, operate the grinder at low speed. If the balance is not right, follow the procedure below to adjust the balance.

Loosen the collet nut while pressing the lock button.

Next, rotate the tip tool by 1/4 and tighten the collet nut.

Operate the grinder at low speed and check the balance. If the balance is right, adjustment is completed.

If the balance still is not right, detach the tip tool, the collet nut and collet and re-attach them. If the tip tool is still not balanced after several such attempts, check for deformation or wear of the tip tool or deformation of the collet. If worn or deformed, replace the tip tool

or collet.

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