Electronic Function - Makita DHR183 Instruction Manual

Selecting the action mode
NOTICE:
Do not rotate the action mode chang-
ing knob when the tool is running. The tool will be
damaged.
NOTICE:
To avoid rapid wear on the mode
change mechanism, be sure that the action mode
changing knob is always positively located in one
of the action mode positions.
Rotation with hammering
For drilling in concrete, masonry, etc., rotate the action
mode changing knob to the
bide-tipped drill bit.
► Fig.6: 1. Action mode changing knob
Rotation only
For drilling in wood, metal or plastic materials, rotate
the action mode changing knob to the
twist drill bit or wood drill bit.
► Fig.7: 1. Action mode changing knob

Electronic function

The tool is equipped with the electronic functions for
easy operation.
• Electric brake
This tool is equipped with an electric brake. If the
tool consistently fails to quickly cease to function
after the switch trigger is released, have the tool
serviced at a Makita service center.
• Constant speed control
The speed control function provides the constant
rotation speed regardless of load conditions.
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.
Side grip (auxiliary handle)
CAUTION:
Always use the side grip to ensure
safe operation.
CAUTION:
After installing or adjusting the
side grip, make sure that the side grip is firmly
secured with the protrusions on the tool are fully
engaged by the grooves on the side grip.
To install the side grip, follow the steps below.
1. Loosen the thumb screw on the side grip.
► Fig.8: 1. Thumb screw
2. Install the side grip so that the grooves on the
grip fit in the protrusions on the tool while pressing the
thumb screw.
► Fig.9: 1. Thumb screw
symbol. Use a car-
symbol. Use a
3. Tighten the thumb screw to secure the grip. The
grip can be fixed at desired angle.
Installing or removing drill bit
Grease
Clean the shank end of the bit and apply grease before
installing the bit.
Coat the shank end of the bit beforehand with a small
amount of grease (about 0.5 - 1 g). This chuck lubrica-
tion assures smooth action and longer service life.
► Fig.10: 1. Shank end 2. Grease
Insert the drill bit into the tool. Turn the drill bit and push
it in until it engages.
After installing the drill bit, always make sure that the
drill bit is securely held in place by trying to pull it out.
► Fig.11: 1. Drill bit
To remove the drill bit, push the chuck cover down all
the way and pull the drill bit out.
► Fig.12: 1. Drill bit 2. Chuck cover
Depth gauge
The depth gauge is convenient for drilling holes of
uniform depth.
Press and hold the lock button, and then insert the
depth gauge into the hole. Make sure that the toothed
side of the depth gauge faces the marking.
► Fig.13: 1. Depth gauge 2. Lock button 3. Marking
4. Toothed side
Adjust the depth gauge by moving it back and forth
while pressing the lock button. After the adjustment,
release the lock button to lock the depth gauge.
NOTE: Make sure that the depth gauge does not
touch the main body of the tool when attaching it.
Dust cup
Optional accessory
Use the dust cup to prevent dust from falling over the
tool and on yourself when performing overhead drilling
operations. Attach the dust cup to the bit as shown in
the figure. The size of bits which the dust cup can be
attached to is as follows.
Model
Dust cup 5
Dust cup 9
► Fig.14: 1. Dust cup
14 ENGLISH
Bit diameter
6 mm - 14.5 mm
12 mm - 16 mm