Air Liquide CITIG 1500 DC Instrucciones De Seguridad, Empleo Y Mantenimiento página 5

GB
4.2 REAR PANEL
Figure 2.
BEFORE INSERTING THE MAINS PLUG, IN ORDER TO
AVOID THE BREAKING OF POWER SOURCE, CHECK IF THE
MAINS CORRESPOND TO THE WISHED MAINS SUPPLY.
Insert the cylinder gas pipe into this fitting (Rif.12 - Fig. 2 page 4) and
1.
secure with a hose clamp.
Ensure that these connections are well tightened to avoid power loss and ove-
rheating.
6.0 TYPES OF MALFUNCTIONING/ WELDING FAULTS – CAUSES – REMEDIES
TYPES OF MALFUNCTIONING
WELDING FAULTS
The generator does not weld: the digital
switch is not lit.
During welding suddenly the outgoing current
is interrupted, the the orange led goes on.
Welding power reduced.
Excessive jets.
Craters.
Inclusions.
Inadequate penetration.
Sticking.
Blowing and porosity.
Jacks.
MAINTENANCE
NB: the power source is fitted with an anti-sticking device that disables power if
output short circuiting occurs or if the electrode sticks, allowing it to be easily
detached from the workpiece. This device enters into operation when power is
supplied to the generator, even during the initial checking period, therefore any
load input or short circuit that occurs during this phase is treated as a fault and
will cause the output power to be disabled.
5.0 MAINTENANCE
Example
utes before carrying out any maintenance. Maintenance must be carried out more
frequently in heavy operating conditions.
Carry out the following operations every three (3) months:
a.
b.
c.
d.
e.
Carry out the following operations every six (6) months:
Remove any dust inside the generator using a jet of dry air.
Carry out this operation more frequently when working in very dusty places.
POSSIBLE CAUSES
A) The main switch is off.
B) The power lead is interrupted (lack of one
or two phases).
C) Other.
Overheating has occurred and the automatic
protection has come on. (See work cycles).
Outgoing wires are not correctly attached.
A phase is missing.
Welding arch too long.
Welding current too high.
Fast removal of the electrodes.
Inadequate cleaning and bad distribution of coating.
Faulty movement of the electrodes.
Forward speed too high. Welding current too low.
Welding arch too short.
Current too low.
Damp electrodes. Arch too long. Wrong torch polarity.
Currents too high. Dirty materials.
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IMPORTANT: Disconnect the power plug and wait at least 5 min-
Replace any illegible labels.
Clean and tighten the welding terminals.
Replace damaged gas tubing.
Repair or replace damaged welding cables.
Have specialized personnel replace the power cable if damaged.
CONTROLS AND REMEDIES
A) Switch on mains.
B) Verify and repair.
C) Ask for the intervention of the Assistance Cen-
tre.
Keep generator switched on and wait till tempera-
ture has dropped again (10-15 minutes) to the
point where the orange switch goes off again.
Check that wires are intact, that the pliers are suffi-
cient and that they are applied to welding surface
clean from rust, paint or oils.
Wrong torch polarity, lower the current values.
Increase current values.
GB