Makita DHR280, Instruction Manual

Page: 21 / 186

21 ENGLISH
DHR282/DHR283)
If the tool is swung at the predetermined acceleration
during operation, the motor is forcibly stopped to reduce
the burden on the wrist.
NOTE: This function does not work if the acceleration does not
reach the predetermined one when the tool is swung.
NOTE: If the bit is swung at the predetermined acceleration
during chipping, scaling, or demolishing, the motor is forcibly
stopped. In this case, release the switch trigger, and then pull
the switch trigger to restart the tool.
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.
To install the side grip, follow the steps below.
1.
Loosen the thumb screw on the side grip. ►
Fig.16:
1. Thumb screw
2. Attach the side grip while pressing the thumb screw
so that the grooves on the grip fit in the protrusions on the tool
barrel.
►
Fig.17: 1. Thumb screw
3. Tighten the thumb screw to secure the grip. The grip
can be fixed at desired angle.
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 longer service life.
Installing or removing drill bit
Clean the shank end of the drill bit and apply grease before
installing the drill bit.
►
Fig.18: 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.19: 1. Drill
bit
To remove the drill bit, pull the chuck cover down all the way
and pull the drill bit out. ►
Fig.20: 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 changing knob to the O symbol.
Turn the chisel to the desired angle.
►
Fig.21: 1. Action mode changing knob
Rotate the action mode changing knob to the
symbol. Then make sure that the chisel is
securely held in place by turning it slightly.
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 hex hole.
Make sure that the toothed side of the depth
gauge faces the marking.
►
Fig.22: 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.
Installing or removing the
dust collection system
Optional accessory
To install the dust collection system, insert
the tool into the dust collection system all
the way until it locks in place with a little
double click. ►
Fig.23
To remove the dust collection system, pull the
tool while pressing the lock-off button.
►
Fig.24: 1. Lock-off button
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 Bit diameter
Dust cup 5 6 mm - 14.5 mm
Dust cup 9 12 mm - 16 mm
►
Fig.25: 1. Dust cup