ESAB AristoMig 320, Instruction Manual

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7.1 Filling the coolant
We recommend a 50/50 % mixture of water
and ethylene glycol.
7.2 Inspection and cleaning
Check regularly that the power source unit is not clogged with dirt.
How often and which cleaning methods apply depend on: the welding process, arc
times, placement, and the surrounding environment. It is normally sufficient to blow
down the power source with compressed air (reduced pressure) once a year.
8 FAULT TRACING
Try these recommended checks and inspections before sending for an authorised
service technician.
Type of fault Action
No arc.
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.
The welding current is interrupted during
welding.
S
Check whether the thermal cut--out has tripped
(indicated by the orange lamp on the front panel).
S
Check the main power supply fuses.
The thermal cut--out trips frequently.
S
Make sure that you are not exceeding the rated
data for the power source (i.e. that the unit is not
being overloaded).
Poor welding performance.
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 main power supply fuses
9 ORDERING SPARE PARTS
Repair and electrical work should be performed by an authorized ESAB serviceman.
Use only ESAB original spare and wear parts.
AristoMig 320/450 is designed and tested in accordance with the international and Eu-
ropean standards IEC/EN 60974--1 and EN 50199. It is the obligation of the service unit
which has carried out the service or repair work to make sure that the product still
conforms to the said standard.
Spare parts may be ordered through your nearest ESAB dealer, see the last page of
this publication.
GB