Functional Description - Makita VR251D Instruction Manual

FUNCTIONAL
DESCRIPTION
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1. Cover
2. Button
3. Battery cartridge
1. Switch trigger
OPERATION
Installing or removing battery cartridge
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2 • 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:
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• 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. Release the switch trigger to
stop.
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.
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
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