Makita DFR452 Instruction Manual page 9

NOTE: Depending on the conditions of use and the
ambient temperature, the indication may differ slightly
from the actual capacity.
NOTE: The first (far left) indicator lamp will blink when
the battery protection system works.
Setting for desired screw lengths
For model DFR452
The tool provides 4 positive-lock screw length settings.
Slide the stopper base out and in while depressing the
levers on the top surface of the stopper base so the
number for desired screw length (indicated on the label)
appears in the reading window. See the following table
for details on the numbers allocated to your desired
screw lengths.
► Fig.4: 1. Stopper base 2. Levers 3. Label
4. Reading window
Numbers indicated on
the label
20
25
32
41
For model DFR551
The tool provides 7 positive-lock screw length settings.
Slide the stopper base out and in while depressing the
levers on the top surface of the stopper base so the
number for desired screw length (indicated on the label)
appears in the reading window. See the following table
for details on the numbers allocated to your desired
screw lengths.
► Fig.5: 1. Stopper base 2. Levers 3. Label
4. Reading window
Numbers indicated on
the label
25
30
35
40
45
50
55
Adjusting driving depths
Press the front face of the stopper base and hold the
feeder box down into the casing as far as it will go.
While keeping it in that position, turn the adjusting dial
so that the driver bit tip comes out approximately 6 mm
from the front face of the stopper base.
Drive a trial screw. If the screw head stands above the
workpiece surface, turn the adjusting dial in the A direc-
tion; if the screw head sits below the surface, turn the
adjusting dial in the B direction.
► Fig.6: 1. Approx. 6 mm 2. Stopper base 3. Feeder
box 4. Casing 5. Adjusting dial
Screw length ranges
20 mm (3/4")
25 mm - 28 mm (1" - 1-1/8")
28 mm - 35 mm (1-1/8" - 1-3/8")
35 mm - 41 mm (1-3/8" - 1-5/8")
Screw length ranges
25 mm (1")
25 mm - 30 mm (1" - 1-3/16")
30 mm - 35 mm (1-3/16" - 1-3/8")
35 mm - 40 mm (1-3/8" - 1-9/16")
40 mm - 45 mm (1-9/16" - 1-3/4")
45 mm - 50 mm (1-3/4" - 2")
50 mm - 55 mm (2" - 2-3/16")
Switch action
WARNING:
Before installing the battery car-
tridge 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, pull the switch trigger. Tool speed is
increased by increasing pressure on the switch trigger.
Release the switch trigger to stop.
For continuous operation, pull the switch trigger, push in
the lock button and then release the trigger. To stop the
tool from the locked position, pull the switch trigger fully,
and then release it.
► Fig.7: 1. Switch trigger 2. Lock button
Reversing switch action
CAUTION:
Always check the direction of
rotation before operation.
CAUTION:
Use the reversing switch only after
the tool comes to a complete stop. Changing the
direction of rotation before the tool stops may dam-
age the tool.
CAUTION:
When not operating the tool,
always set the reversing switch lever to the neu-
tral 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 coun-
terclockwise rotation.
When the reversing switch lever is in the neutral posi-
tion, the switch trigger cannot be pulled.
► Fig.8: 1. Reversing switch lever
Push drive mode
In push drive mode, the driver bit only rotates by apply-
ing pressure onto the driving surface with the stopper
base, allowing the tool to cut off power to the motor to
save battery power at idle.
To select push drive mode, pull the switch trigger
slightly, then release it and quickly press the mode
select button. The indicator lamp on the push drive
mode selector will then light up.
► Fig.9: 1. Mode select button 2. Indicator lamp
NOTE: Push drive mode will automatically be deacti-
vated after eight hours with the switch trigger locked
on and no further switch operation. To restart the tool,
pull the switch trigger fully to release the lock button,
and pull the trigger again.
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.
9 ENGLISH