Design and function
Grinding the electrode
099-003694-EW501
04.05.2017
13
5.1.2.3 Setting the grinding angle of the tungsten electrode
The grinding angle is set via the indicator mark on the infeed. Half angles of 7.5 to 90° can be set.
Figure 5-4
Item Symbol
Description
0
1
Infeed
2
Grinding angle scale
3
Carrying handle
4
Mark
• Unfasten the knurled screw on the infeed.
• Set the mark on the infeed to the required half angle.
• Tighten the knurled screw hand-tight.
5.2
Grinding the electrode
A faulty grinding disc can cause damage to the electrode and electrode holder.
• Do not use the grinder if the grinding disc is damaged.
• Use original grinding discs only.
• Check that the on/off switch is in the "0" position.
• Connect the machine to the power supply.
• Check through the inspection glass that the electrode is not positioned against the grinding disk.
• Switch on machine.
• Move the electrode holder onto the grinding disk while turning it slowly, so that the tungsten electrode
does not anneal. Check the process through the inspection glass.
• Complete the grinding process using light pressure and slow even rotation of the electrode holder.
• The grinding process is complete when the electrode holder limit stop has been reached.
• Switch off the machine and allow it to come to a stop.
• Remove the electrode holder from the infeed channel.
• Insert the electrode holder into the depth gauge and unfasten the electrode by turning to the left.
