Power Source; Welding Torch; Fault-Tracing - ESAB MiniArc 161 LTS Manual De Instrucciones

US
8.1

Power source

Check regularly that the welding power source is not clogged with dirt.
How often and which cleaning methods apply depend on:
S welding process
S arc time
S placement
S surrounding environment
It is normally sufficient to blow the power source with dry compressed air (reduced
pressure) once a year.
Clogged or blocked air inlets and outlets otherwise result in overheating.
8.2

Welding torch

Wear parts should be cleaned and replaced at regular intervals in order to achieve
trouble-free welding.
9

FAULT-TRACING

Try these recommended checks and inspections before sending for an authorized
service technician.
Type of fault
No arc.
The welding current is
interrupted during welding.
The thermal cut-out trips
frequently.
Poor welding performance.
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Corrective action
S Check that the mains power supply switch is turned on.
S Check that the welding current supply and return cables are
correctly connected.
S Check that the correct current value is set.
S Check to see whether the MCB has tripped.
S Check whether the thermal cut-outs have tripped (indicated
by the orange lamp on the front panel).
S Check the mains power supply fuses.
S Make sure that you are not exceeding the rated data for the
power source (i.e. that the unit is not being overloaded).
S Check to see whether the air intakes are restricted or
blocked.
S Check that the welding current supply and return cables are
correctly connected.
S Check that the correct current value is set.
S Check that the correct electrodes are being used.
S Check the gas flow (L-GTAW).
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© ESAB AB 2012