SUHNER ABRASIVE USK 3-R Documentación Técnica página 21

The specified vibration value was measured with a
standardised test procedure. It can be used to
compare products or to make an initial assess-
ment of the exposure. The vibration emissions may differ
from the specified value, depending on how the power
tool is used. Operating personnel must be protected with
defined safety measures based on the estimated expo-
sure under the actual conditions of use (these must take
into account all phases of the operating cycle, e.g. the
times when the power tool is switched OFF and the times
it is switched ON, but is not under load).
2.4 o
PerAting conditions
Temperature range during operation: 0 to +50°C
Relative air humidity: 95 % at +10°C not condensed
3.
haNDLINg
3.1 P
rotection divices
3.1.1 P
rotection of Persons
Two-pole ON/OFF switch with turn-on inhibitor and lock.
3.1.2 P
rotection of the mAchine
s
tArting current limitAtion
The electronically controlled soft starting provides for jerk-
free starting of the machine. Due to the low machine start-
ing current a 16 A fuse is adequate.
t -
emPerAture dePendent overloAd Protection
For protection against overheating, when a critical tem-
perature is reached the electronic safety feature switches
into the cool-down mode. The machine then continues
to run at a speed of approx: 1,100 rpm and the electronic
constant speed control is deactivated.
After a cool-down time of approx. 10 - 20 s the machine is
again ready for operation. Turn the machine off and back
on again to activate the electronic constant speed control.
With the tool at operating temperature the temperature-
dependent overload protection reacts correspondingly
earlier.
u / r
ndervoltAge estArting Protection
On short-time failure of the power voltage (plug discon-
nected, instable power mains etc.) the machine will stop.
When the power voltage recovers, the machine must be
turned OFF and back ON again. Then the machine is
ready for operation.
3.2 r
convenient manipulation position for special work situa-
tions.
Completely unscrew the four screws. Carefully and with-
/ o
PERaTIoN
out removing the housing rotate the gearbox head into a
new position. Screw screws back in and tighten down.
3.3 g
3.3.1 c
Hold spindle against turning at wrench flats with open-
end wrench WS 22. Release the clamping nut with an
open end wrench WS 22.
otAtion of geArbox heAd
The gearbox head can be rotated relative to the
stator housing in steps of 90° which enables the
turn-on/turn-off switch to be brought into a more
rinding tool
Use only clean tools!Use only grinding tools
whose admissible maximum speed is equal to or
higher than the no-load speed of the machine.
Use only clean tools!
/
hAnging fitting the grinding tool
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