Rear Panel; Maintenance; Types Of Malfunctioning/ Welding Faults - Causes - Remedies - CEMONT SMARTY TX 150 Instruction De Securite D'emploi Et D'entretien

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3.2

REAR PANEL

Picture 2.
BEFORE INSERTING THE MAINS PLUG, IN ORDER
TO AVOID THE FAIL OF POWER SOURCE, CHECK
IF THE MAINS CORRESPONDS TO THE WISHED
MAIN SUPPLY.
1. Insert the cylinder gas pipe into this fitting (Rif.12 - Picture 2
Page 5.) and secure with a hose clamp.
Ensure that these connections are well tightened to avoid
power loss and overheating.
NB: the power source is fitted with an anti-sticking device that dis-
ables 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 gener-
ator, even during the initial checking period, therefore any load in-
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

Example
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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put or short circuit that occurs during this phase is treated as a
fault and will cause the output power to be disabled.
4.0 MAINTENANCE
IMPORTANT: DISCONNECT THE POWER PLUG AND WAIT
AT LEAST 5 MINUTES BEFORE CARRYING OUT ANY MAIN-
TENANCE. MAINTENANCE MUST BE CARRIED OUT MORE
FREQUENTLY IN HEAVY OPERATING CONDITIONS.
Carry out the following operations every three (3) months:
a. Replace any illegible labels.
b. Clean and tighten the welding terminals.
c. Replace damaged gas tubing.
d. Repair or replace damaged welding cables.
e. Have specialized personnel replace the power cable if dam-
aged.
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.
5.0 TYPES OF MALFUNCTIONING/ WELDING
FAULTS – CAUSES – REMEDIES
CONTROLS AND REMEDIES
A) Switch on mains.
B) Verify and repair.
C) Ask for the intervention of the Assistance Centre.
Keep generator switched on and wait till temperature has
dropped again (10-15 minutes) to the point where the or-
ange switch goes off again.
Check that wires are intact, that the pliers are sufficient
and that they are applied to welding surface clean from
rust, paint or oils.
Wrong torch polarity, lower the current values.
Increase current values.