Manual Makita DHR281 (page 16 of 156) (English, German, Dutch, Danish, French, Italian, Portuguese, Turkish, Spanish)

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16 ENGLISH

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 rmly

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 t in the protru-

sions on the tool barrel.

► Fig.17: 1. Thumb screw

3. Tighten the thumb screw to secure the grip. The

grip can be xed 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 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.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 chang-

ing 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

sym-

bol. 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 gure. 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

Dust cup set

Optional accessory

Before installing the dust cup set, remove the bit from

the tool if installed.

Install the dust cup set on the tool so that the

sym-

bol on the dust cup is aligned with the groove in the tool.

► Fig.26: 1.

symbol 2. Groove

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Makita DHR281 Manual

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