Operation - Makita DCO140 Instruction Manual

Switch action
CAUTION:
Before installing the battery cartridge into the tool,
•
always check to see that the slide switch actuates
properly and returns to the "OFF" position when
the rear of the slide switch is depressed.
014856
To start the tool, slide the slide switch toward the "I
(ON)" position. For continuous operation, press the front
of the slide switch to lock it.
To stop the tool, press the rear of the slide switch, then
slide it toward the "O (OFF)" position.
Accidental re-start preventive function
Even if the battery cartridge is installed on the tool with the
slide switch in the "I (ON)" position, the tool does not start.
To start the tool, first slide the slide switch toward the "O
(OFF)" position and then slide it toward the "I (ON)" position.
ASSEMBLY
CAUTION:
Always be sure that the tool is switched off and the
•
battery cartridge is removed before adjusting or
checking function on the tool.
Installing or removing bit
CAUTION:
Do not tighten the collet nut without installing a bit,
•
or the collet cone may break.
5
4
1
2
014852
Press the shaft lock to prevent shaft rotation when
installing or removing the bit.
To install the bit, place it in the collet cone as far as it
goes and then tighten the collet nut securely with the
shoe as a wrench.
1. Slide switch
1
1. Collet nut
2. Shoe
3. Shaft lock
4. Tighten
5. Loosen
3
To remove the bit, follow the installation procedure in
reverse.
Changing the collet cone (country specific)
CAUTION:
Use the correct size collet cone for the bit which
•
you intended to use.
Do not tighten the collet nut without installing a bit,
•
or the collet cone may break.
1
2
3
014853
To change the collet cone, loosen the collet nut and
remove. Remove the installed collet cone and replace
with desired collet cone. Reinstall collet nut.

OPERATION

CAUTION:
Avoid forcing the bit to bend or twist. It may snap.
•
Before turning the tool on, make sure the bit and
•
collet nut are securely tightened.
Hold the tool securely with the bit pointing in a safe
direction not contacting any surface. Turn the tool on
and wait until the tool reaches full speed.
014857
When using the drywall guide bit into a drywall, carefully
insert the bit straight until the shoe base contacts the
material fully.
Move the tool slowly with a constant pressure in a
clockwise direction to make the cut.
6
1. Collet cone
2. Bit
3. Collet nut