Makita DDF448 Manual De Instrucciones página 8

Selecting the action mode
NOTICE:
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.
NOTICE:
Do not change the action mode while
rotating.
► Fig.8: 1. Action mode changing ring 2. Mark
3. Arrow
This tool has two action modes.
• Drilling mode (rotation only)
• 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.
Adjusting the fastening torque
► Fig.9: 1. Adjusting ring 2. Action mode changing
ring 3. Graduation 4. Arrow
The fastening torque can be adjusted in 21 levels by
turning the adjusting ring. You can get the minimum
fastening torque at 1 and maximum torque at 21.
1. Align marking with the arrow on the tool body
by turning the action mode changing ring.
2. Align the graduations with the arrow on the tool
body by turning the adjusting ring.
Before actual operation, drive a trial screw into your
material or a piece of duplicate material to deter-
mine which torque level is required for a particular
application.
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 side grip (auxiliary handle)
► Fig.10: 1. Groove 2. Steel band 3. Protrusion
4. Grip base 5. Side grip
Always use the side grip to ensure operating safety.
Attach the side grip so that the protrusions on the grip
base and steel band fit in the grooves on the tool barrel.
Then tighten the grip by turning clockwise.
Depending the operations, you can attach the side grip
upward or right/left side of the tool.
Installing or removing driver bit/
drill bit
► Fig.11: 1. Sleeve
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 driver bit holder
Optional accessory
► Fig.12: 1. Driver bit holder 2. Driver bit
Fit the driver bit holder into the protrusion at the tool foot
on either right or left side and secure it with a screw.
When not using the driver bit, keep it in the driver bit
holders. Driver bits 45 mm-long can be kept there.
Installing hook
CAUTION:
When installing the hook, always
secure it with the screw firmly. If not, the hook
may come off from the tool and result in the personal
injury.
► Fig.13: 1. Groove 2. Hook 3. Screw
The hook is convenient for temporarily hanging the tool.
This can be installed on either side of the tool. To install
the hook, insert it into a groove in the tool housing on
either side and then secure it with a screw. To remove,
loosen the screw and then take it out.
OPERATION
CAUTION:
Always insert the battery cartridge
all the way until it locks in place. If you can see the
red indicator on the upper side of the button, it is not
locked completely. Insert it fully until the red indicator
cannot be seen. If not, it may accidentally fall out of
the tool, causing injury to you or someone around
you.
CAUTION:
When the speed comes down
extremely, reduce the load or stop the tool to
avoid the tool damage.
Hold the tool firmly with one hand on the grip and the
other hand on the handle to control the twisting action.
► Fig.14
Screwdriving operation
CAUTION:
Adjust the adjusting ring to the
proper torque level for your work.
CAUTION:
Make sure that the driver bit is
inserted straight in the screw head, or the screw
and/or driver bit may be damaged.
First, turn the action mode changing ring so that the
arrow on the tool body points to the
Place the point of the driver bit in the screw head and
apply pressure to the tool. Start the tool slowly and then
increase the speed gradually. Release the switch trigger
as soon as the clutch cuts in.
NOTE: When driving wood screw, pre-drill a pilot hole
2/3 the diameter of the screw. It makes driving easier
and prevents splitting of the workpiece.
8 ENGLISH
marking.