Cebora MIG 5002 Synergic Manual De Instrucciones página 13

hasp, wire guide rollers, liner and contact tip.
PROBABLE CAUSE
TROUBLE
Limited electric A phase is missing.
output.
A line fuse is burnt.
Loosened torch or
ground connections.
trasformer wire interrup-
ted on the commutator
Welding with a Wrong adjustment of the
lot of metal welding parameters.
spatter
Insufficient grounding.
Wire not Wire advancing unproperly.
advancyng or
Wire roller with too wide
advancyng
groove.
unproperly
Obstructed or clogged liner.
Loose wire pressing roller.
Coil reel friction too tight.
Current nozzle clogged.
The wire jams or
Wrong current nozzle
entangles
between the diameter.
drive rolls and
Wrong roller groove ali-
the torch infeed
gnment
wire guide
Obstructed or clogged
sheath
8 ERRORS DURING USE
Disconnect the power supply cable from the mains before
working on the cables or opening the machine.
The machine is equipped with a safety thermostat that trips
in case of overload. You must wait a few minutes after this
intervention to allow the source to cool off the power source.
The table below lists the most common errors, causes and
solutions.
9 REPAIRING THE WELDING MACHINES
NOTE: All tasks should be carried out only by skilled per-
sonnel.
9.1 Rules to follow for repairs
• After rewinding the transformer or inductances, the wel-
ding machine must pass the applied voltage tests described
in table 2 of paragraph 6.1.3 of the standard EN 60974.1 (CEI
26.13). Compliance must be verified as specified in 6.1.3.
• If no rewinding has been carried out, a welding machine
that has been cleaned and/or refurbished must pass an
applied voltage test with test voltage values at 50% of those
given in table 2 of 6.1.3. Compliance must be verified as
specified in 6.1.3.
• After rewinding and/or replacing parts, the open-circuit vol-
tage must not exceed the values listed in 10.1 of EN
60974.1.
• If the repairs are not performed by the manufacturer, repai-
red welding machine in which any components have been
replaced or altered must be marked in such a way as to
identify who carried out the repairs.
• After making a repair, make sure to rearrange the wiring so
REMEDY
Check the phase of the
feed line and/or the remo-
ve control switch contacts.
Replace it.
Tighten all connections.
Unscrew the commutator
contact, remove the wire
insulation and put it
under the contact
Select the correct para-
meters through the wel-
ding-voltage switch and
the wire-speed adjust-
ment potentiometer.
Check grounding con-
nections.
Uncorrect sheath diam.
Replace roller.
Extract it and clean.
Tighten it.
Loosen and adjust it.
Replace it.
Replace it.
Align it
Remove and clean
that there is secure insulation between the primary and
secondary sides of the machine. Do not allow wires to come
into contact with moving parts or those that heat up during
operation. Reassemble all of the clamps as they were on the
original machine, to prevent an accidental connection
between the primary and secondary circuits if a conductor
should break or disconnect.
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