Operation - Makita DMC300 Instruction Manual

To remove a cutting wheel, press the shaft lock fully so
that the cutting wheel cannot revolve and use the hex
wrench to loosen the hex bolt counterclockwise. Then
remove the hex bolt, outer flange and cutting wheel.
► Fig.15: 1. Shaft lock 2. Hex wrench 3. Hex bolt
4. Loosen 5. Tighten
If the inner flange is removed, place
NOTICE:
it back onto the spindle with its wheel mounting
part facing upwards.
To install a cutting wheel, follow the removal procedure
in reverse.
► Fig.16: 1. Hex bolt 2. Outer flange 3. Cutting wheel
4. Inner flange 5. Spindle
Installing and removing dust
collection cover
CAUTION:
Make sure that the wheel guard
is securely locked by the stopper inside the dust
collection cover before operation.
CAUTION:
Avoid using the dust collection
cover for metalwork which creates heats and fly-
ing sparks as it may melt the plastic components
of the dust collection cover.
The dust collection cover enhances safe and efficient
cutting operation, providing a safeguard against rotat-
ing wheel, cutting stability, precise control over cutting
depth, and dust extraction solutions, especially at tile,
plaster, stoneware cuttings.
Installing dust collection cover
Loosen the thumb screw on the depth scale of the
1.
dust collection cover. Lift the cover fully up, and then
tighten the thumb screw to secure the dust collection
cover in a raised position.
► Fig.17: 1. Thumb screw 2. Depth scale 3. Dust
collection cover
Set the wheel guard on the tool in a forward
2.
position.
► Fig.18: 1. Wheel guard
Raise the tool handle slightly and place the front
3.
half of the wheel guard at an angle into the dust col-
lection cover, throwing the bottom of the cutting wheel
down through the wheel slot in the base.
► Fig.19: 1. Wheel guard 2. Dust collection cover
3. Cutting wheel 4. Wheel slot
Install the rear half of the wheel guard in the dust
4.
collection cover, while lowering the tool handle from a
raised position to a down position.
► Fig.20: 1. Wheel guard 2. Dust collection cover
5. Raise the tool handle again to hook the rear edge
of the wheel guard over the stopper inside the dust
collection cover.
► Fig.21: 1. Wheel guard 2. Stopper
Loosen the thumb screw. Swing the tool up and
6.
down at your desired cutting depth. Then tighten the
thumb screw to secure the tool in place.
Removing dust collection cover
Loosen the thumb screw on the depth scale of the
1.
dust collection cover. Lift the tool handle fully up, and
then tighten the thumb screw to secure the dust collec-
tion cover in a raised position.
► Fig.22: 1. Thumb screw 2. Depth scale 3. Dust
collection cover
Slide the release lever towards the thumb screw to
2.
unlock the wheel guard from the stopper inside the dust
collection cover.
► Fig.23: 1. Release lever 2. Thumb screw 3. Wheel
guard 4. Dust collection cover 5. Stopper
Dismount the rear half of the wheel guard from
3.
the dust collection cover, while lowering the tool handle
from a raised position to a down position.
► Fig.24: 1. Wheel guard 2. Dust collection cover
Pull the front half of the wheel guard, at a slight
4.
upward and outward angle, apart from the dust collec-
tion cover.
► Fig.25: 1. Wheel guard 2. Dust collection cover

OPERATION

Always maintain a firm grip on the
CAUTION:
tool during operation.
Do not force the tool. Forcing and
CAUTION:
exerting excessive pressure or allowing the wheel to
bend, pinch or twist in the cut can cause overheating
of the motor and dangerous kickback of the tool.
CAUTION:
When cutting plastics, be sure not
to overheat the cutting wheel. It may result in melt-
ing the workpiece.
CAUTION:
Do not bang or bump a cutting
wheel when starting or during operation.
CAUTION:
Always wear safety goggles or a
face shield during operation.
After operation, always switch off
CAUTION:
the tool and wait until the wheel has come to a
complete stop before putting the tool down.
Down cutting
Exercise due care about using an effec-
NOTICE:
tive cutting surface of the wheel so as to avoid
exposure towards cut-off particles.
NOTICE:
Keep a cutting wheel stand straight in
workpiece and avoid tilting or swinging the tool
during operation.
Position the wheel guard correctly to provide maximum
protection from sparks and loose particles thrown from
the cutting wheel. Place the tool over workpiece without
the cutting wheel making any contact. Turn the tool on
and wait until the cutting wheel attains full speed. Then
slowly lower the tool over the workpiece surface, using
a moderate feed suited to your applications.
16 ENGLISH