Operation - Makita BDF459 Instruction Manual

• Low battery voltage:
The remaining battery capacity is too low and the tool
will not operate. In this situation, remove and
recharge the battery.
NOTE:
• Those temperature-sensitive protection and low-
voltage protection is applied only when the tool is used
with a battery cartridge with a star mark. (Fig. 2)
Switch action (Fig. 3)
CAUTION:
• Before inserting the battery cartridge into the tool,
always check to see that the switch trigger actuates
properly and returns to the "OFF" position when
released.
To start the tool, simply pull the switch trigger. Tool speed
is increased by increasing pressure on the switch trigger.
Release the switch trigger to stop.
Lighting up the lamp (Fig. 4)
CAUTION:
• Do not look in the light or see the source of light
directly.
Pull the switch trigger to light up the lamp. The lamp
keeps on lighting while the switch trigger is being pulled.
The lamp goes out just after releasing the trigger.
NOTE:
• Use a dry cloth to wipe the dirt off the lens of the lamp.
Be careful not to scratch the lens of lamp, or it may
lower the illumination.
Reversing switch action (Fig. 5)
CAUTION:
• Always check the direction of rotation before operation.
• Use the reversing switch only after the tool comes to a
complete stop. Changing the direction of rotation
before the tool stops may damage the tool.
• When not operating the tool, always set the reversing
switch lever to the neutral position.
This tool has a reversing switch to change the direction of
rotation. Depress the reversing switch lever from the A
side for clockwise rotation or from the B side for
counterclockwise rotation.
When the reversing switch lever is in the neutral position,
the switch trigger cannot be pulled.
Speed change (Fig. 6)
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.
• Do not use the speed change lever while the tool is
running. The tool may be damaged.
To change the speed, first switch off the tool and then
slide the speed change lever to the "2" side for high speed
or "1" side for low speed. Be sure that the speed change
lever is set to the correct position before operation. Use
the right speed for your job.
Adjusting the fastening torque (Fig. 7)
The fastening torque can be adjusted in 17 steps by
turning the adjusting ring so that its graduations are
aligned with the pointer on the tool body. The fastening
torque is minimum when the number 1 is aligned with the
pointer, and maximum when the
the pointer.
The clutch will slip at various torque levels when set at the
number 1 to 16. The clutch is designed not to slip 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.
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 the driver bit or
drill bit (Fig. 8)
Turn the sleeve counterclockwise to open the chuck jaws.
Place the bit in the chuck as far as it will go. Turn the
sleeve clockwise to tighten the chuck.
To remove the bit, turn the sleeve counterclockwise.
Installing the hook (Fig. 9)
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.
Installing the bit holder (Optional
accessory) (Fig. 10)
Fit the 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 bit holders.
Bits 45 mm long can be kept there.

OPERATION

CAUTION:
• Always insert the battery cartridge all the way until it
locks in place. If you can see the red part on the upper
side of the button, it is not locked completely. Insert it
fully until the red part cannot be seen. If not, it may
accidentally fall out of the tool, causing injury to you or
someone around you.
Hold the tool firmly with one hand on the grip and the
other hand on the bottom of the battery cartridge to
control the twisting action.
CAUTION:
• Do not cover vents, or it may cause overheating and
damage to the tool. (Fig. 11)
Screwdriving operation (Fig. 12)
First, turn the action mode changing ring so that the arrow
on the tool body points to the
adjusting ring to the proper torque level for your work.
Then proceed as follows.
marking is aligned with
marking. Adjust the
7