10 ENGLISH
To change the speed, switch
off the tool first. Select
the "2" side for high
speed or "1" for low
speed but high
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.
Installing or removing driver bit/
drill bit
For Model DF333D (optional accessory)
► Fig.8: 1. Sleeve 2. Close 3. Open
Turn the sleeve counterclockwise to open the chuck
jaws. Place the driver bit/drill
bit in the chuck as
far as it will go. Turn the sleeve clockwise to
tighten the chuck. To remove the
driver bit/drill bit, turn the
sleeve counterclockwise.
Installing or removing driver bit/
socket bit
For Model DF033D (optional accessory)
► Fig.9
Use only driver bit/socket bit
that has inserting portion shown
in the figure. Do not
use any other driver
bit/socket bit.
NOTE: Both shallower type (A=12
mm, B=9 mm) and
deeper type (A=17 mm,
B=14 mm) of driver
bits can be used.
To install the driver bit,
pull the sleeve in the
direction of the arrow and
insert the driver bit into
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.
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 "2", slide the lever to the "1" and restart the operation.
Adjusting the fastening torque
► Fig.7: 1. Adjusting ring 2.
Graduation 3. Arrow
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 fastening torque at 1 and maximum torque
at marking. The clutch will slip at various torque
levels when set at the number 1 to 20.
The clutch does not work at the marking.
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 application.
The following shows the rough guide of the relationship between
the screw size and graduation.