R Otation Of Gearbox Head; G Rinding Tools - SUHNER ABRASIVE UWG 10-R125 Dossier Technique

Carefully remove the spring washer with the three balls,
the drive plate and the washer. Thoroughly clean all parts.
Replace defective parts. Lubricate spring disc ball traveler
with a little multi-purpose grease. Refit all parts in reverse
sequence, making sure that the drive plate and spring
washers are correctly aligned (grooves).
Tensioning screws PT3.5x14 are used for tension-
ing the locking mechanism. When carrying out
maintenance work on the safety guard or on the
locking mechanism make sure that these screws are
used, and not longer or shorter ones. Failure to do so will
pose an accident hazard due to blocking of the spindle
wheel or to inadequate fastening of the safety guard.
3.1.2 A
dditionAl hAndle
The additional handle must be screwed in at the left or
right, or in the gearbox head at the top.
3.1.3 p
rotection of the mAchine
s
tArting current limitAtion
The electronically controlled soft starting provides for
smooth starting of the machine. Due to the low machine
starting 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.
Then the machine continues to run at approx. 1,300 rpm
and the electronic constant speed control is deactivated.
After a cool-down time of approx. 10 - 20 sec. the ma-
chine is again ready for operation.
26
Turn the machine off and back on again to activate the
electronic constant speed control.
When the machine is at operating temperature the tem-
perature-dependent overload protection reacts at a cor-
respondingly earlier time.
o /
VerVoltAge restArting protection
On short-time outage of the power voltage (pulled power
connector, unstable power voltage etc.) the machine will
stop. On recovery of the power voltage the machine has
to be turned off and back on again. The machine is then
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.
Remove the four screws and carefully rotate the gearbox
head into the desired position. Screw in the screws and
tighten down.
3.3 g
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!
3.3.1 f
itting of grinding tools
Clean backing flange, clamping nut and backing flange
surface of the grinding tool.
Place backing flange on the spindle.