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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

 

 

Infeed 

 

Grinding angle scale 

 

Carrying handle 

 

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. 

 

Summary of Contents for TGM 40230 Porta

Page 1: ...instructions EN Electrode grinding machine TGM 40230 Porta 230V 50Hz 099 003694 EW501 04 05 2017 Register now and benefit Jetzt Registrieren und Profitieren www ewm group com For details visit www ewm...

Page 2: ...ervice department on 49 2680 181 0 A list of authorised sales partners can be found at www ewm group com Liability relating to the operation of this equipment is restricted solely to the function of t...

Page 3: ...4 Machine description 8 5 Design and function 9 5 1 Transport and installation 9 5 1 1 Ambient conditions 9 5 1 1 1 In operation 10 5 1 1 2 Transport and storage 10 5 1 2 Presets 10 5 1 2 1 Topping u...

Page 4: ...erved to prevent serious and even fatal injuries Safety notes include the WARNING keyword in the heading with a general warning symbol The hazard is also highlighted using a symbol in the page margin...

Page 5: ...wait 4 s activate Signal light flashes red Interruption in the menu display other setting options possible Tool not required do not use Tool required use 2 3 General WARNING Risk of accidents due to...

Page 6: ...The regulations regarding occupational safety and accident prevention for the respective country Check at regular intervals that users are adhering to the safety regulations in their work Check the ma...

Page 7: ...www ewm group com 3 2 2 Declaration of Conformity The labelled machine complies with the following EC directives in terms of its design and construction Machine directive Low Voltage Directive LVD Ele...

Page 8: ...pection glass 3 Filling hose 4 Mains connection cable 5 Dust container 6 Indication of correct liquid level 7 Machine table 8 Depth gauge setting bolt 9 Collet chuck 10 Electrode holder Area of applic...

Page 9: ...sc Before starting the grinder check the electrode position through the inspection window If too much pressure is exerted from the electrode onto the grinding disk the electrode may overheat and becom...

Page 10: ...C 5 1 1 2 Transport and storage Storage in an enclosed space temperature range of the ambient air 30 C to 70 C Relative air humidity Up to 90 at 20 C 5 1 2 Presets CAUTION Complete assembly The machi...

Page 11: ...3 Filling hose 4 Inspection glass 5 Indication of correct liquid level 6 Dust container 7 Drain thread 8 Machine table Unfasten the locking screw from the drain thread Manually screw the duct collecto...

Page 12: ...jury Only use genuine collet chucks Only use collet chucks that match the relevant electrode diameter Figure 5 2 Item Symbol Description 0 1 Electrode 2 Collet chuck 3 Electrode holder Area of applica...

Page 13: ...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 posi...

Page 14: ...disconnected Disconnect all mains connections and supply lines CAUTION Grinding dust Grinding dust may get into the eyes during cleaning Grinding liquid residue can enter the bloodstream via surface s...

Page 15: ...fit the inspection glass and inspection glass frame using the screws Make sure the sealing ring fits tightly between casing and inspection glass 6 2 Replacing the grinding disk Disconnect the grinding...

Page 16: ...230 PORTA Mains cable length 2 m Output 380 W Mains connection EN 50144 230 V 50 60 Hz Speed 8500 rpm Diamond disk diameter 40 mm Grinding speed 44 m s Grinding angle setting 7 5 90 Grinding liquid fi...

Page 17: ...ers 098 003697 00000 COL Porta Handy 1 2 mm Collet chuck for EWM tungsten electrode grinders 098 003698 00000 COL Porta Handy 1 6 mm Collet chuck for EWM tungsten electrode grinders 098 003674 00000 C...

Page 18: ...Appendix A Overview of EWM branches 18 099 003694 EW501 04 05 2017 9 Appendix A 9 1 Overview of EWM branches...

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