O Perating Conditions; P Rotection Of The Machine; R Otation Of Gearbox Head; G Rinding Tools - SUHNER ABRASIVE UWC 20-R Originalbetriebsanleitung

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 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: 9000min
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 acti-
vate the electronic constant speed control. With the tool at
operating temperature the temperature-dependent over-
load 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
otAtion of geArBox heAd
The gearbox head can be rotated relative to the
stator housing in steps of 90° which enables the
ON/OFF switch to be brought into a more easily
accessible position for special work operations.
Loosen the screws (1) and carefully rotate the gearbox
head into the desired position. Screw in the screws and
tighten down.
3.3 g
/ o
PeratIon
3.3.1 f
-1
and the electronic
Hold spindle by wrench flats with open end wrench and
screw the tool.
must be correctly mounted and must rotate freely. Per-
form a trial run a minimum over a period of 30 seconds
without load. Do not use grinding tools which are dam-
aged, which do not run true or which vibrate!
3.4 w
To achieve an optimum result, move tool uniformly back
and forth with light pressure. The electronic constant con-
trol maintains the speed nearly constant during idling and
work under load and assures a uniform result. Excessive
pressure lessens the working capability of the machine,
as well as the life of the tool. The machine is equipped
with an electronic control and integrated overload pro-
tection. If the machine is overloaded, the speed will drop
drastically. Immediately take the load off the machine and
allow to run for a short time without load.
rinding tools
Use only grinding tools whose admissible maxi-
mum speed is equal to or higher than the no-load
speed of the machine.
Use only clean tools!
itting of grinding tools
The grinding tools must run true. Do not use grind-
ing tools which have gotten out of round! Trial run!
Check grinding tools before use. The grinding tool
orKing instructions
23