Makita DGA402 Instruction Manual page 10

CAUTION:
• Make the depth of a single cut up to 5 mm. Adjust
pressure on the tool so that the tool does not slow
down during the operation.
• After operation, always switch off the tool and wait until
the wheel has come to a complete stop before putting
the tool down.
• If the tool is operated continuously until the battery
cartridge has discharged, allow the tool to rest for
15 minutes before proceeding with a fresh battery.
Grinding and sanding operation (Fig. 10)
ALWAYS hold the tool firmly with one hand on housing
and the other on the side handle. Turn the tool on and
then apply the wheel or disc to the workpiece.
100 mm (4")
Abrasive cut-off wheel
Thickness: Less than 4 mm (5/32")
16 mm (5/8")
1. Lock nut
115 mm (4 - 1/2") / 125 mm (5")
Abrasive cut-off wheel
Thickness: Less than 4 mm (5/32")
22.23 mm (7/8")
1. Lock nut
010848
WARNING:
• When using an abrasive cut-off/diamond wheel, be
sure to use only the special wheel guard designed for
use with cut-off wheels. (In European countries, when
using a diamond wheel, the ordinary guard can be
used.)
• NEVER use cut-off wheel for side grinding.
• Do not "jam" the wheel or apply excessive pressure. Do
not attempt to make an excessive depth of cut.
Overstressing the wheel increases the loading and
susceptibility to twisting or binding of the wheel in the
cut and the possibility of kickback, wheel breakage and
overheating of the motor may occur.
10
Thickness: 4 mm (5/32") or more
1
2
16 mm (5/8")
3
2. Abrasive cut-off wheel
Thickness: 4 mm (5/32") or more
1
2
22.23 mm (7/8")
3
2. Abrasive cut-off wheel
In general, keep the edge of the wheel or disc at an angle
of about 15 degrees to the workpiece surface.
During the break-in period with a new wheel, do not work
the grinder in the B direction or it will cut into the
workpiece. Once the edge of the wheel has been rounded
off by use, the wheel may be worked in both A and B
direction.
Operation with abrasive cut-off/diamond
wheel (optional accessory) (Fig. 11)
The direction for mounting the lock nut and the inner
flange varies by wheel thickness.
Refer to the table below.
Diamond wheel
Thickness: Less than 4 mm (5/32")
1
4
20 mm (13/16")
3
3. Inner flange 4. Diamond wheel
Diamond wheel
Thickness: Less than 4 mm (5/32")
1
4
22.23 mm (7/8")
3
3. Inner flange 4. Diamond wheel
• Do not start the cutting operation in the workpiece. Let
the wheel reach full speed and carefully enter into the
cut moving the tool forward over the workpiece surface.
The wheel may bind, walk up or kickback if the power
tool is started in the workpiece.
• During cutting operations, never change the angle of
the wheel. Placing side pressure on the cut-off wheel
(as in grinding) will cause the wheel to crack and break,
causing serious personal injury.
• A diamond wheel shall be operated perpendicular to
the material being cut.
Thickness: 4 mm (5/32") or more
20 mm (13/16")
Thickness: 4 mm (5/32") or more
22.23 mm (7/8")