Manual Makita HR2450T (page 6 of 48) (German, Danish, French, Italian, Portuguese, Spanish)

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14. Some material contains chemicals which may be

toxic. Take caution to prevent dust inhalation

and skin contact. Follow material supplier safety

data.

SAVE THESE INSTRUCTIONS.

WARNING:

MISUSE or failure to follow the safety rules stated in

this instruction manual may cause serious personal

injury.

FUNCTIONAL DESCRIPTION

CAUTION:

• Always be sure that the tool is switched off and

unplugged before adjusting or checking function on the

tool.

Switch action (Fig. 1)

CAUTION:

• Before plugging in the tool, always check to see that

the switch trigger actuates properly and returns to the

“OFF” position when released.

To start the tool, simply 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 and then push in the

lock button. To stop the tool from the locked position, pull

the switch trigger fully, then release it.

Lighting up the lamps (Fig. 2)

For model HR2450F/HR2450FT

CAUTION:

• Do not look in the light or see the source of light

directly.

To turn on the lamp, pull the trigger. Release the trigger

to turn it off.

NOTE:

• Use a dry cloth to wipe the dirt off the lens of lamp. Be

careful not to scratch the lens of lamp, or it may lower

the illumination.

Reversing switch action (Fig. 3)

For model HR2450/HR2450F/HR2450X/HR2450T/

HR2450FT

This tool has a reversing switch to change the direction of

rotation. Move the reversing switch lever to the

D posi-

tion (A side) for clockwise rotation or to the

E position

(B side) for counterclockwise rotation.

CAUTION:

• Always check the direction of rotation before operation.

• Use the reversing switch only after the tool comes to a

complete stop. Changing the direction of rotation

before the tool stops may damage the tool.

• When you operate the tool in counterclockwise rotation,

the switch trigger is pulled only halfway and the tool

runs at half speed. For counterclockwise rotation, you

cannot push in the lock button.

Changing the quick change chuck for SDS-plus

For model HR2450T/HR2450FT

The quick change chuck for SDS-plus can be easily

exchanged for the quick change drill chuck.

Removing the quick change chuck for SDS-plus

(Fig. 4)

CAUTION:

• Before removing the quick change chuck for SDS-plus,

always remove the bit.

Grasp the change cover of the quick change chuck for

SDS-plus and turn in the direction of the arrow until the

change cover line moves from the symbol to the

symbol. Pull forcefully in the direction of the arrow.

Attaching the quick change drill chuck (Fig. 5)

Check the line of the quick change drill chuck shows the

symbol. Grasp the change cover of the quick change

drill chuck and set the line to the symbol.

Place the quick change drill chuck on the spindle of the

tool.

Grasp the change cover of the quick change drill chuck

and turn the change cover line to the symbol until a

click can clearly be heard.

Selecting the action mode

Rotation with hammering (Fig. 6)

For drilling in concrete, masonry, etc., depress the lock

button and rotate the action mode changing knob to the

H symbol. Use a tungsten-carbide tipped bit.

Rotation only (Fig. 7)

For drilling in wood, metal or plastic materials, depress

the lock button and rotate the action mode changing

knob to the m symbol. Use a twist drill bit or wood bit.

Hammering only (Fig. 8)

For chipping, scaling or demolition operations, depress

the lock button and rotate the action mode changing

knob to the symbol. Use a bull point, cold chisel, scal-

ing chisel, etc.

CAUTION:

• Do not rotate the action mode changing knob when the

tool is running under load. The tool will be damaged.

• 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 three action mode

positions.

Torque limiter

The torque limiter will actuate when a certain torque level

is reached. The motor will disengage from the output

shaft. When this happens, the bit will stop turning.

CAUTION:

• As soon as the torque limiter actuates, switch off the

tool immediately. This will help prevent premature wear

of the tool.

• Hole saws cannot be used with this tool. They tend to

pinch or catch easily in the hole. This will cause the

torque limiter to actuate too frequently.

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Makita HR2450T Manual

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