Parweld DP323C, Руководство пользователя

Страница: 25 / 30

www.parweld.com
24. TROUBLESHOOTING
Below are a list of some of the most common problems that may arise, with the relative
solutions.
DEFECT CAUSE SOLUTION
Machine switches off
[display: off]
[display: network error] Lack of tension on the supply
grid. Refresh the power supply
tension.
Check supply grid. Refresh the power supply
tension.
The machine suddenly stops
working after prolonged use
[display: overheating or
inverter
overload]
The machine has overheated
due
to excessive use and the
thermal
protection has intervened.
Leave the machine to cool until the
warning message disappears
[display: inverter under-
voltage]
MMA: electrode in contact
with the
earth.
MMA: electrode in contact with
the earth.
Arc off Poor contact between the
earth
clamp and the workpiece.
Tighten the clamp and check
again.
Short circuit between the
contact
nozzle and the gas tube.
Clean and replace contact
nozzle and wire-feeder tip.
Porous welding seam Gas shield absent due to
build-up
of deposits in the gas nozzle.
Clean any eventual deposits.
Incorrect tilt angle of torch. The distance between the torch
and the workpiece must be
5-10mm; the tilt angle must be
no less than 60 degrees from
the workpiece.
Not enough gas Increase gas
Damp workpiece Dry with a hot air pistol or other
means.
Welding arc is too long Shorten the arc
Scarce fusion fast torch movements Slow down torch movement
Rusty material Clean
Lateral incisions Welding speed is too high Reduce welding speed
[display: no SD-card] The SD-card has been
removed
Insert SD-card
24