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PRECAUTIONS REGARDING THE DUST-RESISTANCE
AND WATER-PROOFING FUNCTIONS
This product conforms to IP56 protection class ratings (dust-resistance and water-proofi ng)
for electrical equipment as stipulated by the international IEC regulations. (Only the main unit
conforms to the IP56 protection class ratings when equipped with a battery.)
[Descriptions of IP Codes]
IP56
Protection rating for water penetration
Must be no adverse eff ects on the equipment when sprayed with powerful jets of water
from all directions (water-proofed).
(100 L of water per minute sprayed for approximately three minutes from a distance of
approximately three meters with the use of a spray nozzle with a diameter of 12.5 mm.)
Protection rating for external assault by solid objects
Dust that may cause adverse eff ects on the equipment must not be able to enter (dust-
resistance).
(The equipment to be left non-operable in a test chamber in which particles of talcum
powder with a diameter of less than 75 μm are fl oating in the air with the use of an
agitation pump at a rate of 2 kg per cubic meter for eight hours.)
The equipment has been designed to withstand the eff ects of dust and water, but there is no
guarantee that it will not malfunction. Do not use or leave the equipment in locations where it is
subject to excessive amounts of dust, or in locations where it is submerged in water or subject to
rainwater.
SYMBOLS
WARNING
The following show symbols used for the machine. Be sure that you understand their
meaning before use.
To reduce the risk of injury, user must
read instruction manual.
Direct current
V
Rated voltage
n
No-load speed
0
/min Oscillation per minute
Warning
32
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