1. Assembly
(1) Turn the disc grinder upsidedown so that the spindle
is facing upward.
(2) Align the oval-shaped indentation of the wheel washer
with the notched part of the spindle, then attach them.
(3) Fit the protuberance of the depressed center wheel
onto the wheel washer.
(4) Screw the wheel nut onto the spindle.
(5) While pushing the push button with one hand, lock the
spindle by turning the depressed center wheel slowly
with the other hand.
Tighten the wheel nut by using the supplied wrench as
shown in Fig. 5.
Wheel nut
Wheel
guard
Push button
Wrench
Wheel
washer
Spindle
Depressed
center wheel
Tighten
Fig. 5
CAUTION
Tighten the wheel nut securely and con
fi
rm that
the depressed center wheel does not wobble.
2. Disassembly
To remove the depressed center wheel, simply
reverse the above-mentioned procedure.
WARNING
Do not press the grinder forcibly against the
surface to be ground. Heavy pressure can result
in wheel breakage and serious injury. It can also
damage the surface being ground or damage the
grinder’s motor.
4. Use proper grinding angle.
Grind only with the wheel’s edge by lifting the grinder
15° to 30°, as shown in Fig. 4.
CAUTION
Do not use the entire surface of the depressed
center wheel. Use only the edge of the depressed
center wheel.
5. Move the grinder in the proper direction.
When using a new depressed center wheel in
direction A (Fig. 4), the wheel edge may cut into the
workpiece. In this case, grind in direction B (Fig. 4).
Once the wheel edge is worn, the workpiece can be
ground in both directions.
15° – 30°
A B
Fig. 4
NOTE
The wheel provided (resinoid wheel) is rated as Class
A grain and # 36 grain size. It is most suitable for
heavy grinding of steel and other types of materials.
6. Adjust operation to desired
fi
nish.
For
a
fi
ne
fi
nish, decrease pressure by lifting slightly.
Grind slowly and at the appropriate speed.
CAUTION
The revolving depressed center wheel will create
air turbulence.
Do not lay the grinder down in areas of dust or
dirt until it has come to a complete stop.
DEPRESSED CENTER WHEEL ASSEMBLY
AND DISASSEMBLY
WARNING
Never attempt to assemble or disassemble the
depressed center wheel, unless the power
switch is in the “OFF” position and the electrical
cord has been disconnected from the receptacle.
11
English
0000G12BYEQ̲metabo.indb 11
0000G12BYEQ̲metabo.indb 11
2020/06/15 14:18:15
2020/06/15 14:18:15