Lampert PUK5.1 - 11 Correcting Faults

Lampert Werktechnik GmbH Lampert Werktechnik GmbH
OPERATING MANUAL PUK 5.1
EN
Welding sparks may cause an explosion or fire.
Arcs can damage the eyes and injure the skin.
Electromagnetic fields may impair the function of pacemakers.
11. Correcting faults
Fault occurring Possible cause Fault rectification
Faults on the welding device
Display is dark Mains master switch is not
switched on
Check mains master switch and
switch on
Circuit breaker has tripped Use more powerful mains fuse,
consult an electrician
Device fuse blown Replace device fuse
No welding current Welding cable connection
interrupted
Check cable connections
Poor or zero contact with
theworkpiece
Establish connection to
theworkpiece, fasten contact
clamps directly to the workpiece,
clean the workpiece with the PUK
universal cleaner
Poor welding characteristics Incorrect shielding gas used Use recommended inert shielding
gas “Argon 4.6”
Poor ignition characteristic Electrode clamped loosely in hand
piece
Tighten clamping nut on the hand
piece until hand tight
Oxidation or rusting Gas pressure too high Reduce gas flow rate, approx.
2-3 l/min is recommended
Severe oxidation of the welding
points
Incorrect shielding gas used Use recommended inert shielding
gas “Argon 4.6”
Tungsten embedded in
theworkpiece
Electrode pressure on
theworkpiece too great
Touch workpiece with extremely
light pressure
28