English

￿After adjustment, if grinder operation is required, perform the operation only after setting the lever in closed position.

￿Lubricate the sliding section of the set piece

(B) and the lever if the lever does not move smoothly.

Lever

Set piece (B)

M5 screw

Fig. 2

WARNING:

If the wheel guard is not attached properly, a broken wheel may result in and cause death or serious injury.

7.Thoroughly check that the depressed center wheel is free of cracks, splits and other abnormalities before mounting. Make sure it is firmly clamped and has been properly mounted. Refer to page 12 of this manual for Depressed Center Wheel Assembly and Disassembly

8.Test the grinder before using.

Before actually beginning the grinding work, test the grinder by first clearing the area of all other personnel. Make sure the wheel guard is in place and that you are wearing eye protection. Turn the grinder “on”, and make sure the grinder runs smoothly and shows no abnormalities.

Duration of the trial run is as follows:

When depressed center wheel is replaced

.......................................... 3 minutes or more When starting daily work

............................................1 minute or more

9.Use only properly rated depressed center wheels. Use only depressed center wheels rated at

13,300/min for G12VA, 12,000/min for G13VA and 10,200/min for G15VA or more.

Using a depressed center wheel rated less can lead to wheel disintegration during operation and cause serious bodily injury.

10.Check the push button.

Make sure that the push button is disengaged by pushing push button two or three times before turning on the grinder. (Fig. 5)

GRINDER OPERATION

1.Hold the grinder firmly by its housing and side handle (Fig. 1).

The grinder produces a counterforce which must be controlled by firmly holding onto the grinder.

2.Turn the grinder “on”. (Fig. 3)

While holding the grinder firmly, use one finger to slide the switch to the “on” position.

Switch

OFF

ON

Fig. 3

3.Adjusting the number of revolution

Above models are equipped with an electronic infinite-variable-speed drive and can change the number of revolution according to a use.

If you turn and set the dial scale (Fig. 4) to 6, the number of revolution increases, and if you turn and set it to 1, the number of revolution decreases. Before use, set the number of revolution using the dial. In so doing, refer to the following table as a rough guide.

Dial

Use

Tools

1

Polishing, finishing

Radial grinding

2

Removal of paint or

disc

coat

Sanding disc

 

3

Removal of rust

 

 

 

 

4

Removal of burrs

 

 

 

 

5

Grinding

Depressed center

 

wheel

 

 

 

Rough grinding

Depressed center

6

Cutting

wheel

 

 

Diamond wheel

11