Air Liquide M 130, Owner'S Manual

5.2

REPLACING THE GUN LINER

1. Turn OFF welder.

2. Follow the instructions in the figure below:

No functions operate

Faulty power cord (one or more

Check and remedy

phases disconnected)

Blown fuse

Replace

Irregular wire feed

Insufficient spring pressure

Tighten pressure assembly knob

Wire-guide blocked

Replace

Wire groove - unsuitable for wire,

Turn roller over or change it

or excessively worn

Excessive braking on coil 

Loosen brake using adjusting screw

Oxidized, poorly wound, poor quality wire,

Remedy by removing defective coils. If problem persists,

with tangled or overlapping coils, etc.

change the wire reel

Reduced welding power

Ground cable not connected

Check that the power cord is in good condition and make

sure that the ground clamps are flrmly fixed to the workpiece

Detached or loose connection

Check, tighten or replace, as necessary

on switches

Faulty contactor

Check the state of the contacts and the

mechanical efficiency of the contactor

Faulty rectifier

Visually check for signs of burn-out; if present, replace rectifler

Porous or spongy welds

No gas

Check presence of gas and gas supply pressure

Drafts in the welding area Use a suitable screen. Increase gas delivery

pressure if necessary

Clogged holes in gas diffuser

Clear clogged holes using compressed air

Gas leakage in supply hoses

Check and replace faulty component

Solenoid valve blocked

Check solenoid operation and electrical connection

Faulty regulator

Check operation by removing the hose connecting 

the pressure regulator to the power source

Poor quality gas or wire

Gas must be extra-dry; change the cylinder or use 

a different type wire

Gas supply does 

Worn or dirty solenoid valve

Replace solenoid

not switch off

Presslng torch trigger 

Faulty torch trigger, disconnected

Remove the torch connection plug and short circuit the poles;

produces no result

or broken control cables

if the machine operates properly, check the cables and 

the torch trigger

Fuse blown

Replace, using a fuse of the same rating

Faulty power switch

Clean with compressed air. Ensure that wires are 

tightly secured; replace switch if necessary

Faulty electronic circuit

Replace circuit

TYPE OF BREAKDOWN POSSIBLE CAUSES

CHECKS AND SOLUTIONS

5.3

TROUBLESHOOTING

15