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C. Personal safety
1 ． Keep alert to operate power tool for the concrete job. Do not operate power tool when the operator
feels tired, or in the case of drug, alcohol or medication reaction, and the operating moment of careless-
ness can result in serious injury.
2 ． Use the safety devices, such as dust mask under appropriate conditions, non-slip safety shoes, hard
hat, and listening protection, which will reduce personal injuries. And take the goggles always.
3 ． Prevent accidental start, make sure that the switch is in the off position when connect with the power
and / or battery box, or when the power tool is picked up or transported, the fingers on the power connec-
ted switch or the plugging with the connected power may cause the risk.
4 ． Remove any adjusting key or wrench before connect the power for the electrical tool. The key or
wrench left on the rotating part of the power tool may cause personal injury.
5.Do not overreach hand. Keep the balance for the feet and body. In this way, the power tool can be con-
trolled very well for the unexpected situations.
6 ． Dress properly. Do not wear the loose clothing or jewelery. Keep your hair, clothing and gloves away
from moving parts. And the loose clothes, accessories, or long hair can be caught in moving parts.
7 ． Ensure that the link is proper to be used if any equipment to connect with the cuttings discharging
device and the dust collection device, which can reduce dust related hazards
D. Usage and precaution of power tool
1 ． Do not abuse the power tool, and choose the correct power tool for the application. And the job would
be more effective and safe if the power tool with the appropriate rated value has been chosen.
2 ． The power tool can not be used if it is not possible for the switch to connect or disconnect the power.
And the power tool which can not be controlled by the switch is dangerous, and it must be repaired.
3 ． The power or the battery box must be disconnected before any adjustments, changing accessories,
or storing power tools, which may reduce the risk of unexpected start.
4 ． Keep the idle power tools out of the reach of children, the operator who is unfamiliar with the power
tool or these instructions can not operate the power tool. And it is dangerous for the untrained users to
operate the power tool.
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