Makita BHP343 User Manual download pdf (Page 5)

FUNCTIONAL DESCRIPTION

CAUTION:

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

battery cartridge is removed before adjusting or

checking function on the tool.

Installing or removing battery cartridge

Fig.1

• Always switch off the tool before insertion or

removal of the battery cartridge.

• To remove the battery cartridge, withdraw it from

the tool while sliding the button on the side of the

cartridge.

• To insert the battery cartridge, align the tongue on

the battery cartridge with the groove in the housing

and slip it into place. Always insert it all the way

until it locks in place with a little click. 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.

• Do not use force when inserting the battery

cartridge. If the cartridge does not slide in easily, it

is not being inserted correctly.

Switch action

Fig.2

CAUTION:

• Before inserting the battery cartridge into 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.

Reversing switch action

Fig.3

This tool has a reversing switch to change the direction

of rotation. Depress the reversing switch lever from the A

side for clockwise rotation or from the B side for

counterclockwise rotation.

When the reversing switch lever is in the neutral position,

the switch trigger cannot be pulled.

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 not operating the tool, always set the

reversing switch lever to the neutral position.

Speed change

Fig.4

To change the speed, first switch off the tool and then

slide the speed change lever to the "2" side for high

speed or "1" side for low speed. Be sure that the speed

change lever is set to the correct position before

operation. Use the right speed for your job.

CAUTION:

• Always set the speed change lever fully to the

correct position. If you operate the tool with the

speed change lever positioned halfway between

the "1" side and "2" side, the tool may be

damaged.

• Do not use the speed change lever while the tool is

running. The tool may be damaged.

Selecting the action mode

Fig.5

This tool employs an action mode changing ring. Select

one of the three modes suitable for your work needs by

using this ring.

For rotation only, turn the ring so that the arrow on the

tool body points toward the

mark on the ring.

For rotation with hammering, turn the ring so that the

arrow points toward the

mark on the ring.

For rotation with clutch, turn the ring so that the arrow

points toward the

mark on the ring.

CAUTION:

• Always set the ring correctly to your desired mode

mark. If you operate the tool with the ring

positioned halfway between the mode marks, the

tool may be damaged.

Adjusting the fastening torque

Fig.6

The fastening torque can be adjusted in 16 steps by

turning the adjusting ring so that its graduations are

aligned with the arrow on the tool body. The fastening

torque is minimum when the number 1 is aligned with

the arrow, and maximum when the number 16 is aligned

with the arrow.

Before actual operation, drive a trial screw into your

material or a piece of duplicate material to determine

which torque level is required for a particular application.

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.

Installing or removing driver bit or drill bit

Fig.7

Turn the sleeve counterclockwise to open the chuck

jaws. Place the bit in the chuck as far as it will go. Turn

the sleeve clockwise to tighten the chuck.

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Makita BHP343 User Manual Page 5

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