Bosch Power Tools 1821 manual Symbols, Name Designation/Explanation

BM 1609929Y07 10-10:BM 1609929Y07 10-10 1/18/11 10:05 AM Page 7

Symbols

IMPORTANT: Some of the following symbols may be used on your tool. Please study them and learn their meaning. Proper interpretation of these symbols will allow you to operate the tool better and safer.

Symbol					Name	Designation/Explanation
				V	Volts	Voltage (potential)
				A	Amperes	Current
		Hz			Hertz	Frequency (cycles per second)
			W		Watt	Power
			kg		Kilograms	Weight
	min				Minutes	Time
				s	Seconds	Time
					Diameter	Size of drill bits, grinding wheels, etc.
			n0		No load speed	Rotational speed, at no load
				n	Rated speed	Maximum attainable speed
.../min					Revolutions or reciprocation	Revolutions, strokes, surface speed,
					per minute	orbits etc. per minute
0					Off position	Zero speed, zero torque...
1, 2, 3, ...					Selector settings	Speed, torque or position settings.
I, II, III,						Higher number means greater speed
0					Infinitely variable selector with off	Speed is increasing from 0 setting
					Arrow	Action in the direction of arrow
					Alternating current	Type or a characteristic of current
					Direct current	Type or a characteristic of current
					Alternating or direct current	Type or a characteristic of current
					Class II construction	Designates Double Insulated
						Construction tools.
					Earthing terminal	Grounding terminal
					Warning symbol	Alerts user to warning messages
					Li-ion RBRC seal	Designates Li-ion battery recycling
						program
					Ni-Cad RBRC seal	Designates Ni-Cad battery recycling
						program

Read manual symbol

Alerts user to read manual

Wear eye protection symbol

Alerts user to wear eye protection

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