Elettro CF MMA 1435, Instruction Manual

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2.6.1 Electrode preparation 

It is necessary to pay special attention to the preparation of the 
electrode point, grinding it so as to obtain vertical markings as 
shown in picture 2. 
 

CAUTION: HOT FLYING METAL PARTICLES can injure 
persons, start fires and damage equipment. TUNGSTEN 
CONTAMINATION can lower the welding quality. 
- Shape tungsten electrode only on grinder with proper guards 

in a safe location, wearing proper face, hand, and body 
protections. 

- Shape tungsten electrodes on a fine grit, hard abrasive wheel 

used only for tungsten shaping. 

- Grind the end of the tungsten electrode to a taper-shape for a 

length of 1,5 -2 electrode diameters (picture 2). 

 
3 MAINTENANCE AND CHECK UP 
 
3.1 GENERAL NOTES 

WARNING: ELECTRIC SHOCK CAN KILL. 
-  Do not touch live electrical parts. 
- Turn off welding power source and remove input power plug 

from socket before maintenance and servicing. 

  MOVING PARTS can cause serious injury. 
-  Keep away from moving parts. 
  HOT SURFACES can cause severe burns. 
-  Allow the cooling of the unit before servicing. 

 
3.2 WELDING MACHINE MAINTENANCE 

Experience has shown that many fatal accidents originated 
from servicing which had not been perfectly executed. For this 
reason, a careful and thorough inspection on a serviced 
welding machine is just as important as one carried out on a 
new welding machine. 
Furthermore, in this way manufacturer can be protected from 
being held responsible for defects when the fault is someone 
else. 
 

3.2.1 Prescriptions to follow for servicing:

- After rewinding the transformer or the inductance, the welding 

machine must pass the voltage test applied according to that 
indicated in table 4 of the EN 60974-1. 

- If no rewinding is done, a welding machine which has been 

cleaned and/or reconditioned must pass a voltage test 
applied with voltage values equal to 50% of the values given 
in table 4 of EN 60974-1. 

- After rewinding and/or the replacements of parts, the no-load 

voltage should not exceed the values given in 11.1 of EN 
60974-1. 

- If the servicing is not done by the manufacturer, the repaired 

welding machines which underwent replacements or 
modifications of any component should be labelled in a way 
such that the identity of the person having serviced is clear. 

3.2.2 Precautions to take while servicing:

AN EXCESSIVE PRESSURE can break the circuit board. 
Use only minimal pressure and gentle movements when 
disconnecting or connecting board plugs and removing or 

installing board. 
INCORRECT INSTALLATION or misaligned plugs can 
damage circuit boards. 
Check that plugs are properly installed and aligned before 
reinstalling the cover. 

 
3.3 TROUBLE SHOOTING 

 
DEFECT PROBABLE 

CAUSE 

REMEDY 

The welding  

Switch in O position 

Switch to I 

machine does not   

position 

supply current; 

completely 
inoperative  

 Burnt 

fuses 

Replace 

fuses 

Plug not correctly 

Connect it  

 connected 

properly 

_____ 

The welding  

Incorrect supply 

See 2.2.3 

machine does 

voltage: yellow  

not supply current  signal lights up 

but the ventilator 
works 
  

_____ 

Thermostat is open. 

Wait approx. 

Yellow block signal 

5-6 min. 

 lights 

up.