Bosch GAS20-17A Operating/Safety Instructions Manual page 6

2610051564_GAS20-17A 5/8/18 1:18 PM Page 6
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 Designation / Explanation
V Volts (voltage)
A Amperes (current)
Hz Hertz (frequency, cycles per second)
W Watt (power)
kg Kilograms (weight)
min Minutes (time)
s Seconds (time)
CFM
Cubic feet per minute [or ft
⌀
Diameter (size of drill bits, grinding wheels, etc.)
n No load speed (rotational speed at no load)
0
n Rated speed (maximum attainable speed)
Revolutions or reciprocation per minute (revolutions, strokes, surface
.../ m in
speed, orbits etc. per minute)
0 Off position (zero speed, zero torque...)
1, 2, 3, ... Selector settings (speed, torque or position settings. Higher number
I, II, III, means greater speed)
Infinitely variable selector with off (speed is increasing from 0 setting)
0
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)
Symbols
3
/min] (air flow rate)
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