Functional Description; Operation - Makita VR250D Instruction Manual

power.
2. Never recharge a fully charged
cartridge.
Overcharging shortens the battery service life.
3. Charge the battery cartridge with room
temperature at 10 ﾟ C - 40 ﾟ C (50 ﾟ F - 104 ﾟ F).
Let a hot battery cartridge cool down before
charging it.
4. Charge the Nickel Metal Hydride battery
cartridge when you do not use it for more than
six months.

FUNCTIONAL DESCRIPTION

Installing or removing battery cartridge
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Always switch off the tool before insertion or
•
removal of the battery cartridge.
To remove the battery cartridge, open the cover
•
and withdraw it 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
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CAUTION:
Before inserting the battery cartridge into the tool,
•
always check to see that the switch trigger
battery
1. Cover
2
2. Button
3. Battery cartridge
1. Switch trigger
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actuates properly and returns to the "OFF" position
when released.
To start the tool, simply pull the switch trigger. Release
the switch trigger to stop.

OPERATION

Hold the tool straight when inserting/operating. Use the
tool within the effective vibrations range at equidistant
intervals. The effective air bubble removal range is about
ten times diameter of the vibrating head, or around 250
mm.
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.
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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
concrete 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 aggregates 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 condition.
When concreting a slope site, always pour from the
bottom at the beginning. This way the weight of the
freshly poured concrete and vibration will lead to
effective removal of air bubbles. Conversely, if the
pouring is done first from above, the mortar will separate
and eventually slide to the bottom.
Slope
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