Makita DMC300 Manuel D'instructions page 14

Electronic function
The tool is equipped with the electronic functions for
easy operation.
• Electric brake
This tool is equipped with an electric brake. If the
tool consistently fails to quickly cease to function
after the switch trigger is released, have the tool
serviced at a Makita service center.
• Constant speed control
The speed control function provides the constant
rotation speed regardless of load conditions.
• Active Feedback sensing Technology
The tool electronically detects situations in which
the cutting wheel may be at risk to be bound.
In the situation, the tool automatically stops to
prevent further rotation of the spindle (it does not
prevent kickback).
In this case, release the switch trigger first, remove
the cause of sudden drop in the rotation speed, and
then pull the switch trigger to restart the tool.
ASSEMBLY
CAUTION:
Always be sure that the tool is
switched off and the battery cartridge is removed
before carrying out any work on the tool.
Hex wrench storage
When not in use, store the hex wrench as shown in the
figure to keep it from being lost.
► Fig.14: 1. Hex wrench
Removing and installing cutting
wheel
CAUTION:
Use only the Makita hex wrench
supplied to remove and install a cutting wheel.
CAUTION:
When installing a cutting wheel, be
sure to tighten the bolt securely.
NOTICE:
When installing a diamond wheel for
its best performance, always make sure that the
arrows on the diamond wheel point in the same
direction as your desired wheel rotation.
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
NOTICE:
If the inner flange is removed, place
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
1.
Loosen the thumb screw on the depth scale of the
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
2.
Set the wheel guard on the tool in a forward
position.
► Fig.18: 1. Wheel guard
3. Raise the tool handle slightly and place the front
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
4. Install the rear half of the wheel guard in the dust
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
6. Loosen the thumb screw. Swing the tool up and
down at your desired cutting depth. Then tighten the
thumb screw to secure the tool in place.
Removing dust collection cover
1. Loosen the thumb screw on the depth scale of the
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
2.
Slide the release lever towards the thumb screw to
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
14 ENGLISH