Makita DGA454 Instruction Manual page 12

Always wear safety goggles or a face shield during
•
operation.
After operation, always switch off the tool and wait
•
until the wheel has come to a complete stop
before putting the tool down.
Grinding and sanding operation
Fig.19
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.
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
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 some
European countries, when using a diamond wheel,
the ordinary guard can be used. Follow the
regulations in your country.)
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
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.20
Remove the battery cartridge from the tool and place it
upside down allowing easy access to spindle. Mount the
inner flange and abrasive cut-off / diamond wheel onto
the spindle. Tighten the lock nut securely with supplied
wrench. 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")
20 mm (13/16")
3. Inner flange 4.
Diamond wheel
Thickness: Less than 4 mm (5/32")
22.23 mm (7/8")
3. Inner flange 4.
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.
12
Thickness: 4 mm (5/32") or more
1
4
20 mm (13/16")
3
Diamond wheel
Thickness: 4 mm (5/32") or more
1
4
22.23 mm (7/8")
3
Diamond wheel