Elettro CF MMA 1435, Instruction Manual

2.3 UNIT DESCRIPTION 

 
A) Welding current adjustment potentiometer. 
B) Thermal and electrode anti-sticking protections signal. 
C) Power ON indicator. 
D) Positive connection Texas. 
E) Negative connection Texas. 
F) Input voltage general switch. 
 

2.4 GENERAL NOTES 

Before using this welding machine, carefully read the 
standards CEI 26/10 CENELEC HD 427 and also check 
insulation of cables, electrode holder clamp, sockets and plugs 
and that the section and length of welding cables are 
compatible with current used: 
up to 5 m use 16 mm

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, 

from 5 to 20 m use 25 mm

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, 

from 20 to 30 m use 35 mm

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. 

WARNING: This equipment does not comply with IEC 61000-
3-12. If it is connected to a public low voltage system, it is the 
responsibility of the installer or user of the equipment to 
ensure, by consultation with the distribution network operator if 
necessary, that the equipment may be connected. 

 
2.5 COATED ELECTRODE WELDING 

- Use the electrode holder clamps in compliance with the 

safety standards and without projecting tightening screws. 

-  Make sure that the switch F (picture 1) is in O position or that 

the plug is not inserted in supply socket then connect welding 
cables in accordance with polarity demanded by the 
manufacturer of the electrodes which you will be using. 

-  Welding circuit should not be deliberately placed in direct or 

indirect contact with protection wire if not in the piece to be 
weld. 

-  If earthing is deliberately made on the workpiece by means 

of the protection wire, the connection must be as direct as 
possible, with the wire having a section at least equal to the 
welding return current wire and connected to the piece,  

  being worked on, in the same place as the return wire, using 

the return wire terminal or a second earth terminal close by. 

-  All possible precautions must be taken in order to avoid stray 

currents. 

- When taking voltage from a three-phase line, be very 

careful when connecting the supply cable earth wire to 
the socket earth pole. 

-  Connect the supply cable. When mounting a plug, make sure 

that its capacity is adequate and that the yellow-green wire of 
the supply cable is connected to the earth plug pin. 

- The sections of all extensions should be adequate to 

absorbed current I

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. 

-  Turn the machine on by means of the switch F (picture 1). 
WARNING: ELECTRIC SHOCK CAN KILL. 
-  Do not touch live electric parts. 
-  Do not touch weld output terminals when unit is energized. 
-  Do not touch electrode holder and earth clamp at the same 

time. 

-  Adjust the current according to the diameter of the electrode, 

to the welding position and to the type of joint to be carried 
out.  

When you have finished to weld, always remember to turn off 
the unit and to remove the electrode from the electrode holder. 
 

2.6 TIG WELDING 

- This welding machine is fit for welding with TIG procedure: 

stainless steel, iron and copper. 

- Connect the earth cable wire to the positive (+) pole of the 

welding machine and the terminal to the working piece as 
close as possible to the welding machine, making sure there 
is a good electrical contact. 

- Connect the connector of the TIG torch to the negative (-) 

pole of the welding machine. 

- The welding machine circuit should not be deliberately in 

direct or indirect contact with protection conductor if not in the 
piece to be welded. 

- If earthing is deliberately made on the workpiece by means of 

protection wire, the connection must be as direct as possible, 
with the wire having a section at least equal to the welding 
return current wire and connected to the piece being worked 
on, in the same place as the return wire, using the return wire 
terminal or a second earth terminal close by. 

- All possible precautions must be taken in order to avoid stray 

currents. 

- Connect gas pipe to pressure reducer output connected to an 

ARGON cylinder. 

- Open the valve on the torch and regulate gas capacity. 
- Use a 2% thoriated tungsten electrode chosen according to 

table. 

electrode ø    

direct current 

2% thoriated tungsten 

negative electrode 

 (red 

band) 

  (Argon) 

ø 1 mm (0,040") 

up to 60A 

ø 1,6 mm (1/16") 

60  ÷  160A 

 
- Make sure that mains voltage corresponds to the voltage of 

the welding machine. 

- Connect the supply cable: when mounting a plug, make sure 

that its capacity is adequate and that the yellow-green wire of 
the supply cable is connected to the earth plug pin. 

- Any extensions should have adequate sections for absorbed 

current 

I

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. 

 
WARNING: ELECTRIC SHOCK CAN KILL! 
- Do not touch live electric parts. 
- Do not touch weld output terminals when unit is energized. 
- Do not touch torch and earth clamp at the same time. 
- Turn on the machine on with switch F (picture 1). 
- Regulate current according to the work to be carried out, then 

open the valve placed on the torch to allow the emission of 
gas. Start the arc by contact, with a determined rapid 
movement. 

CAUTION: do not use commercial ignition devices. 
When you have finished to weld, always remember to turn off 
the machine

and to close the gas cylinder valve. 

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