Makita VR250DWDE Instruction Manual - Page 4

Browse online or download pdf Instruction Manual for Power Tool Makita VR250DWDE. Makita VR250DWDE 11 pages. Cordless concrete vibrator

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OPERATING INSTRUCTIONS

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, open the cover and

withdraw the battery cartridge from the tool while

pressing the buttons on both sides 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 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 trigger. Release the trig-

ger to stop.

Operation (Fig. 3)

Hold the tool straight when inserting/operating. Use the

tool within the effective vibration range at equidistant

intervals. The effective air bubble removal range is about

ten times the diameter of the vibrating head, or around

250 mm with this tool.

Do not use this tool to move concrete within a form. The

mortar will just move away and the coarse aggregate will

remain, causing segregation.

Effective leveling and removal of air bubbles

Removal of the air bubbles is complete after you have

worked the tool throughout each effective range, the con-

crete stops shrinking, and the mortar has risen evenly to

the surface, giving off a light appearance. Gently remove

the operating tool not to leave holes.

NOTE:

• Vibrating too long in a single place causes concrete

segregation.

• When the coarse aggregate segregates when placing

concrete, shovel out the coarse aggregate and put it

where there is plenty of mortar. Then use the tool on it.

Don't leave coarse aggregate in the segregated condi-

tion.

When concreting a slope site, always pour from the bot-

tom at the beginning. This way the weight of the freshly

poured concrete and vibration will lead to effective

removal of air bubbles. (Fig. 4)

Conversely, if the pouring is done first from above, the

mortar will separate and eventually slide to the bottom.

MAINTENANCE

CAUTION:

Always be sure that the tool is switched off and the bat-

tery cartridge is removed before carrying out any work on

the tool.

To maintain product safety and reliability, repairs, mainte-

nance or adjustment should be carried out by a Makita

Authorized Service Center.

ACCESSORIES

CAUTION:

• These accessories or attachments are recommended

for use with your Makita tool specified in this manual.

The use of any other accessories or attachments might

present a risk of injury to persons. Only use accessory

or attachment for its stated purpose.

If you need any assistance for more details regarding

these accessories, ask your local Makita service center.

• Various type of Makita genuine batteries and chargers