Makita DMC300 Instruction Manual page 13

Wheel rotation direction
CAUTION:
Al w ays check the direction of
rotation before operation.
CAUTION:
Use the reversing s w itch only after
the tool comes to a complete stop. A sudden switch
in rotation direction during operation brings the tool to
a sharp stop for safety reasons.
Wheel rotation can be changed in either forward or
reverse direction.
To set the forward rotation, slide the reversing switch to
the left until F indication appears on the switch.
To select the reverse rotation, slide the reversing switch
to the right until R indication appears on the switch.
Fig.4: 1. Reversing switch
Chips, debris, sparks, and cutting particles tend to y
o along a tangent direction of the wheel rotation. Use
the wheel guard e ectively to avoid continued e posure
towards cut-o particles so it can discharge some of
cutting dust and particles into an alternative direction.
A reaction to a rapid stalling of the rotating wheel could make the
tool uncontrolled in the direction opposite to the wheel rotation.
For w ard rotation
Fig.5: 1. Cut-o particles 2. Reactions
Reverse rotation
Fig.6: 1. Cut-o particles 2. Reactions
Wheel guard
CAUTION:
Make sure that the w heel guard is
correctly and rmly positioned behind the cutting
w heel before operation.
Secure the wheel guard in a comfortable position, for ma i-
mum safety and minimum e posure to possible risk factors,
according to your work conditions and preferences.
Positioning for w ards
Fig.7: 1. Wheel guard 2. Cutting wheel
Positioning back w ards
Fig.8: 1. Wheel guard 2. Cutting wheel
Shaft lock
Press the shaft lock to prevent spindle rotation when
installing and removing a cutting wheel.
Fig.9: 1. Shaft lock
NOTICE:
Never actuate the shaft lock w hen the
spindle is moving. The tool may be damaged.
Operation lamp
CAUTION:
Do not look in the light or see the
source of light directly.
To turn on the operation lamp, press and hold the lock-
o button and pull the switch trigger.
The lamp goes out appro imately 15 seconds after
releasing the switch trigger.
Fig.10: 1. Operation lamp
NOTICE:
When the tool is operated w ith exces-
sive load, the operation lamp ashes. In this situ-
ation, release the s w itch trigger, and then reduce
the load on the tool before operating again.
NOTICE:
When the tool is overheated, the opera-
tion lamp ashes. In this case, release the switch
trigger, and then cool do w n the tool/battery before
operating again.
NOTE: Use a dry cloth to wipe the dirt o the lens of
the lamp. Be careful not to scratch the lens of lamp, or
it may lower the illumination.
Adjusting depth of cut
CAUTION:
After adjusting the depth of cut,
al w ays tighten the thumb scre w securely.
With the dust collection cover installed, ne adjustments
in the cutting depth can be made up to 1 .5 mm.
Loosen the thumb screw on the depth scale. Lift or
lower the tool handle into position to align the depth
indicators on the cover with your desired cutting depth
on the scale. Then tightening the thumb screw.
Fig.11: 1. Thumb screw 2. Depth scale 3. Depth
indicator
CAUTION:
For clean and safe cutting, set the
cutting depths so that a cutting wheel overpasses the
undersurface of workpiece by . mm or less. Setting
in proper cutting depths helps to reduce potential
for dangerous kickbacks which may cause personal
injury.
Sighting for straight cutting
With the dust collection cover installed, straight cut
operation can safely be performed by aligning the cut-
ting wheel toward the cutting direction before the actual
cut operation.
Align the guide notch in the base of dust collection
cover with your intended cutting line on the workpiece.
Fig.12: 1. uide notch 2. Base 3. Cutting line
Connecting a vacuum cleaner
Optional accessory
When you wish to perform clean cutting operation,
connect a Makita vacuum cleaner to the dust nozzle in
the dust collection cover using a front cu s
accessory).
Fig.13: 1. Front cu s
4. Vacuum cleaner
Accidental re-start preventive
function
When installing the battery cartridge while pulling the
switch trigger, the tool will not start.
To start the tool, release the switch trigger rst. Press
and hold the lock-o button, and then pull the switch
trigger.
13 ENGLISH
(optional
2. Dust nozzle 3. ose