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6. MAINTENANCE.
• Remove weld spatter from the tip of TIG and MIG/MAG torches.
• Check the condition of cables and connectors. Change them if they are damaged.
• Check that the insulating parts of the torches are not damaged. Change them if necessary.
• Check the tightness of the connections on the solder terminals and the ground connection.
• Check that the air inlet on the fan is not obstructed.
7. TROUBLESHOOTING.
PROBLEM
The wire does not move
or wire feed entangles.
Main switch indicator
light does not switch on.
Machine welds badly.
Over-heating indicator
light switches on.
CAUSE / SOLUTION
Feed rolls, wire conduit or contact tips are defective
· Check that feed rolls are not too tight or too loose
· Check that the feed roll groove is not too worn
·Check that the wire conduit is not blocked· Check that there
are no spatters on the
conduit tip and that the hole is not cramped or worn loose
The machine has no supply voltage·
Check that cooling air can flow without obstructions
Machine's volume-capacity ratio has been exceeded;
wait for the indicator light to .
switch off
The supply voltage is too low or too high
Welding outcome is influenced by several factors
· Check the trimming settings of welding
power control and arc length
· Check that the earthing clamp is fixed
properly .fixing point is clean,and both
cable and its connections are undamaged· Check the flow of
shielding gas from the tip of the welding gun
· Supply voltage is uneven,too low or too high
of the welding gun
· Supply voltage is uneven,too low or too high
The machine has over-heated
The machine has over-heated
· Check that cooling air can flow without
· Machine's volume-capacity ratio has been
exceeded;wait for the indicator light to switch off
· The supply voltage is too low or too high
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