Makita DC18RA Manual Del Usuario página 19

CAUTION:
Always set the speed change lever
fully to the correct position. If you operate the
tool with the speed change lever positioned halfway
between the "1" side and "2" side, the tool may be
damaged.
CAUTION:
Do not use the speed change lever
while the tool is running. The tool may be damaged.
Displayed Speed
Number
1 Low
2 High
To change the speed, switch off the tool first. Push the
speed change lever to display "2" for high speed or "1" for
low speed but high torque. Be sure that the speed change
lever is set to the correct position before operation.
If the tool speed is coming down extremely during the
operation with display "2", push the lever to display "1"
and restart the operation.
Selecting the action mode
CAUTION:
Always set the ring correctly to
your desired mode mark. If you operate the tool
with the ring positioned halfway between the
mode marks, the tool may be damaged.
CAUTION:
When you change the position
from " " to other modes, it may be a little dif-
ficulty to slide the action mode changing ring. In
this case, switch on and run the tool for a second
at the " " position, then stop the tool and slide
the ring to your desired position.
Adjusting the fastening torque
1
► 1 . Action mode changing ring 2. Adjusting ring
3. Graduation 4. Arrow
Graduation
Machine screw
Wood Soft wood
screw (e.g. pine)
Hard wood
(e.g. lauan)
Torque Applicable
operation
High Heavy load-
ing operation
Low Light loading
operation
2
3
4
1 2 3 4 5 6
M4
–
–
1
► 1 . Action mode changing ring 2. Adjusting ring
3. Graduation 4. Arrow
This tool has three action modes.
• Drilling mode (rotation only)
• Hammer drilling mode (rotation with
hammering)
• Screwdriving mode (rotation with clutch)
Select one mode suitable for your work. Turn the
action mode changing ring and align the mark that you
selected with the arrow on the tool body.
The fastening torque can be adjusted in 21 levels by
turning the adjusting ring. Align the graduations with the
arrow on the tool body. You can get the minimum fas-
tening torque at 1 and maximum torque at 21.
Before actual operation, drive a trial screw into your
material or a piece of duplicate material to determine
which torque level is required for a particular applica-
tion. The following shows the rough guide of the rela-
tionship between the screw size and graduation.
7 8 9 10 11 12
M5
ɸ3.5 x 22 ɸ4.1x 38
ɸ3.5 x 22
7 ENGLISH
13 14 15 16 17 18
M6
–
ɸ4.1x 38
2
3
4
19 20 21
–