Makita DHR182RFJ Instruction Manual page 17

Rotation with hammering
For drilling in concrete, masonry, etc., rotate the action
mode changing knob to the
carbide tipped bit (optional accessory).
► Fig.6: 1. Rotation with hammering 2. 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. Rotation only
Hammering only
For chipping, scaling or demolition operations, rotate
the action mode changing knob to the
bull point, cold chisel, scaling chisel, etc.
► Fig.8: 1. Hammering only
Adjusting the nozzle position of the
dust collection system
Optional accessory
Push in the guide while pushing up the guide adjust-
ment button, and then release the button at the desired
position.
► Fig.9: 1. Guide 2. Guide adjustment button
NOTE: Before adjusting the nozzle position, release
the nozzle forward completely by pushing up the
guide adjustment button.
Adjusting the drilling depth of the
dust collection system
Optional accessory
Slide the depth adjustment button to the desired posi-
tion while pushing it up. The distance (A) is the drilling
depth.
► Fig.10: 1. Depth adjustment button
Torque limiter
NOTICE:
As soon as the torque limiter actuates,
switch off the tool immediately. This will help pre-
vent premature wear of the tool.
NOTICE:
Drill bits such as hole saw, which tend
to pinch or catch easily in the hole, are not appro-
priate for this tool. This is because they will cause
the torque limiter to actuate too frequently.
The torque limiter will actuate when a certain torque
level is reached. The motor will disengage from the
output shaft. When this happens, the drill bit will stop
turning.
symbol. Use a tungsten-
symbol. Use a
symbol. Use a
17 ENGLISH
Electronic function
The tool is equipped with the electronic functions for
easy operation.
• 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.
Install the side grip so that the grooves on the grip fit in
the protrusions on the tool barrel. Turn the grip clock-
wise to secure it. The grip can be fixed at desired angle.
► Fig.11: 1. Side grip
Grease
Coat the shank end of the drill bit beforehand with a
small amount of grease (about 0.5 - 1 g).
This chuck lubrication assures smooth action and lon-
ger service life.
Installing or removing drill bit
Clean the shank end of the drill bit and apply grease
before installing the drill bit.
► Fig.12: 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.13: 1. Drill bit
To remove the drill bit, pull the chuck cover down all the
way and pull the drill bit out.
► Fig.14: 1. Drill bit 2. Chuck cover
Chisel angle (when chipping,
scaling or demolishing)
The chisel can be secured at the desired angle. To
change the chisel angle, rotate the action mode chang-
ing knob to the O symbol. Turn the chisel to the desired
angle.
► Fig.15: 1. Action mode changing knob
Rotate the action mode changing knob to the
bol. Then make sure that the chisel is securely held in
place by turning it slightly.
sym-