7-3. Precautions in Use
7-3-1. Wet cutting and dry cutting
The Model CM 4SB2 can be used for "wet cutting" applications except the ones exported to China, U.S.A. and
Canada due to limitation of the standards. Although the Model CM 4SB2 has a double-insulation structure to
prevent shock hazard during wet cutting, such insulation is not always complete depending on the customer's
operating conditions, degradation level of the main body, etc. To prevent a possible accident, recommend the
customer to install an earth leakage breaker when using water at operation.
7-3-2. Cautions in cutting or striating
Instruct the customers to check the diamond wheel without fail before operation. Do not use a cracked, broken
or bent wheel.
Instruct the customers not to pour water or grinding fluid on the wheel when using the diamond wheel for dry
cutting (segment type). Otherwise, the service life of the diamond wheel may be shortened.
Instruct the customers to set the cutting depth to 20 mm or less, and not to cut a workpiece at a time but cut it
in several steps if a cutting depth over 20 mm is required. Otherwise, the diamond wheel may be damaged
and its service life may be significantly shortened as well as the motor burnout.
The diamond wheel may be damaged and its service life may be significantly shortened if it is used for zigzag
cutting, curve cutting, inclined cutting, or its side surface is used. Instruct the customers not to use the
diamond wheel in such ways.
Instruct the customers to wear safety glasses and masks without fail to protect themselves from dust
especially during dry cutting.
Although the Model CM 4SB2 is superior to the conventional models in overload durability, operation in
overload or continuous long-term operation may shorten the service life of the Model CM 4SB2 and the
diamond wheel. Instruct the customers not to operate the Model CM 4SB2 in overload.
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