Makita BHR200 User Manual download pdf (Page 7)

Operation

CAUTION:

•

Always insert the battery cartridge all the way until it locks in

place. If you can see the red part on the upper side of the

button, it is not locked completely. Insert it fully until the red

part cannot be seen. If not, it may accidentally fall out of the

tool, causing injury to you or someone around you.

•

When operating overhead, always make sure the battery

cartridge is locked securely so that it will not be fallen out of

the tool. If not, it may accidentally fall out of the tool, causing

injury to you or someone around you.

Hammer drilling operation (Fig. 16)

Set the change lever to the symbol. Position the bit at the

location for the hole, then pull the trigger. Do not force the tool.

Light pressure gives best results. Keep the tool in position and

prevent 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 from the hole. By repeating this several times, the

hole will be cleaned out.

CAUTION:

•

When the bit begins to break through concrete or if the bit

strikes reinforcing rods embedded in concrete, the tool may

react dangerously. Maintain good balance and safe footing

while holding the tool firmly with both hands to prevent

dangerous reaction.

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.

Chipping/Scaling/Demolition (Fig. 17)

Set the change lever to the symbol. Hold the tool firmly with

both hands. Turn the tool on and apply slight pressure on the

tool so that the tool will not bounce around, uncontrolled.

Pressing very hard on the tool will not increase the efficiency.

Drilling operation (Fig. 18)

Use the optional drill chuck 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

27 mm diameter in wood.

Set the change lever so that the pointer points to the

symbol.

Use a cutting lubricant when drilling metals. The exception is

brass which should be drilled dry.

CAUTION:

•

Pressing excessively on the tool will not speed up the

drilling. In fact, this excessive pressure will only serve to

damage the tip of your bit, decrease the tool performance

and shorten the service life of the tool.

•

Never use ‘‘rotation with hammering’’ when the drill chuck

assembly is installed on the tool. The drill chuck assembly

may be damaged.

Blow-out bulb (Fig. 19)

Use the blow-out bulb to clean out the hole.

Dust cup (Fig. 20)

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. The size of bits which the dust

cup can be attached to is as follows.

Bit diameter (mm)

Dust cup 5 6 – 14.5

Dust cup 9 12 – 16

Foot

Remove the foot when you use the battery cartridge B2417.

This will help to place the tool steady. (Fig. 21)

Install the foot when you use the battery cartridge B2430.

This will help to place the tool steady. (Fig. 22)

MAINTENANCE

CAUTION:

Always be sure that the tool is switched off and the battery

cartridge is removed before carrying out any work on the tool.

Replacement of carbon brushes (Fig. 23 & 24)

Remove and check the carbon brushes regularly. Replace

when they wear down to the limit mark. Keep the carbon

brushes clearn 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.

To maintain product safety and reliability, repairs, mainte-

nance or adjustment should be carried out by a Makita

Authorized Service Center.

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Makita BHR200 User Manual Page 7

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