Makita VR250DA Manuel d'instruction - Page 7
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Effective l e v e p g 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
sur-
face, 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 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
I S
done first from above, the mortar will
separate and eventually slide to the bottom
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ADDITIONAL SAFETY RULES
FOR CHARGER
&
BATTERY CARTRIDGE
1 . Do not charge Battery Cartridge when temperature is BELOW 10°C (50°F)
2.
DO
ndt attempt
to
use a step-up transformer, an engine generator or DC power
3. Do not allow anything to cover or clog the charger vents.
4.
Always cover the battery terminals with the battery cover when the battery
5,
A battery short can cause a large current flow, overheating, possible burns
or
ABOVE 4OoC ( 1 0 4 ° F ) .
receptacle.
cartridge is not used.
and even a breakdown.
( 1 ) Do not touch the terminals with any conductive material.
(2) Avoid storing battery cartridge in a container with other metal objects such
(3) Do not expose battery cartridge t o water or rain.
ture may reach or exceed 5OoC (122OF).
completely worn out. The battery cartridge can explode in a
fire.
a s nails, coins, etc.
6. Do not store the tool and Battery Cartridge in locations where the tempera-
7 . D o not incinerate the Battery Cartridge even if it is severely damaged or is
SAVE THESE INSTRUCTIONS.
1