Bruksanvisning Makita HR2010 Borrhammare

Bruksanvisning

5

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.

• Do not tape, tie or otherwise secure the trigger in the

“ON” position.

To start the tool, simply pull the switch trigger. Tool speed

is increased by increasing pressure on the switch trigger.

Release the trigger to stop.

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, core bits, diamond core bits, etc. 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.

ASSEMBLY

CAUTION:

• Always be sure that the tool is switched off and

unplugged before carrying out any work on the tool.

Side grip (auxiliary handle) (Fig. 2)

The side grip swings around to either side, allowing easy

handling of the tool in any position. Loosen the side grip

by turning it counterclockwise, swing it to the desired

position and then tighten it by turning clockwise.

Bit grease

Coat the bit shank head beforehand with a small amount

of bit grease (about 0.5 – 1 g).

This chuck lubrication assures smooth action and longer

service life.

Installing or removing the bit (Fig. 3 & 4)

Clean the bit shank and apply bit grease before installing

the bit.

Insert the bit into the tool. Turn the bit and push it in until

it engages.

If the bit cannot be pushed in, remove the bit. Pull the

chuck cover down a couple of times. Then insert the bit

again. Turn the bit and push it in until it engages.

After installing, always make sure that the bit is securely

held in place by trying to pull it out.

To remove the bit, pull the chuck cover down all the way

and pull the bit out.

Depth gauge (Fig. 5)

The depth gauge is convenient for drilling holes of uni-

form depth. Insert the depth gauge into the hole in the

grip base. Adjust the depth gauge to the desired depth

and then tighten the clamp screw to secure the depth

gauge.

NOTE:

• The depth gauge cannot be used at the position where

the depth gauge strikes against the gear housing.

OPERATION

Hammer drilling operation

Position the bit at the desired location for the hole, then

pull the switch trigger. Do not force the tool. Light pres-

sure gives best results. Keep the tool in position and pre-

vent it from slipping away from the hole.

Do not apply more pressure when the hole becomes

clogged with chips or particles. Instead, run the tool at an

idle, then remove the bit partially from the hole. By

repeating this several times, the hole will be cleaned out

and normal drilling may be resumed.

CAUTION:

• There is a tremendous and sudden twisting force

exerted on the tool/bit at the time of hole break-

through, when the hole becomes clogged with chips

and particles, or when striking reinforcing rods embed-

ded in the concrete. Always use the side grip (auxiliary

handle) and firmly hold the tool by both side grip and

switch handle during operations. Failure to do so may

result in the loss of control of the tool and potentially

severe injury.

Drilling in wood or metal (Fig. 6)

Use the optional drill chuck assembly (consisting of drill

chuck and chuck adapter assembly). When installing it,

refer to “Installing or removing drill bit” described on the

previous page.

You can drill up to 13 mm diameter in metal and up to

24 mm diameter in wood.

MAINTENANCE

CAUTION:

• Always be sure that the tool is switched off and

unplugged before attempting to perform inspection or

maintenance.

• Never use gasoline, benzine, thinner, alcohol or the

like. Discoloration, deformation or cracks may result.

Replacing carbon brushes (Fig. 7 & 8)

When the resin insulating tip inside the carbon brush is

exposed to contact the commutator, it will automatically

shut off the motor. When this occurs, both carbon

brushes should be replaced. Keep the carbon brushes

clean and free to slip in the holders. Both carbon brushes

should be replaced at the same time. Use only identical

carbon brushes.

Use a screwdriver to remove the brush holder caps. Take

out the worn carbon brushes, insert the new ones and

secure the brush holder caps.

Lubrication (Fig. 9 & 10)

This tool requires no hourly or daily lubrication because it

has a grease-packed lubrication system. Lubricate the

tool every time the carbon brushes are replaced.

Run the tool for several minutes to warm it up. Switch off

and unplug the tool.

Remove the crank cap using a Makita lock nut wrench

(optional accessory). Rest the tool on the table with the

bit end pointing upwards. This will allow the old grease to

collect inside the crank housing.

Betyg

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