Awelco MIG ONE - Инструкция по эксплуатации - Страница 6

 
 
 
 
La macchina cessa improvvisamente 
di funzionare dopo un uso prolungato 

5)  Pezzi con molta ruggine 

1)  La macchina si è surriscaldata 

per un uso eccessivo e la 
protezione 
termica è intervenuta 

altro mezzo 
 
Pulire i pezzi dalla ruggine 
 
Lasciare raffreddare la macchina per  
almeno 20 – 30 minuti 

ENGLISH 

GENERAL DESCRIPTION 

MIG welders which can weld flux cored gasless wire. 
WHEN WELDING, USE PROMIG JET WELDING SPRAY 
TO OBTAIN OPTIMAL WELDING. THE USE OF THIS 
PRODUCT WILL ENHANCE THE BINDING OF THE WELD 
AND REDUCE SPATTERING. 

1. INSTALLATION 
1.1. ELECTRICAL CONNECTION 

The welding machine is fitted with a suitable primary cable 
which we strongly recommend you to do not extend: if it is 
necessary to extend it, use a cable having the same section 
of the primary cable.  
Before connecting the machine to the outlet, check that your 
supply voltage is like the machine’s voltage and that the 
furneshed power is sufficient to feed the full load machine. 
Make sure that the electric plant is provided with a sufficient 
earth connection.  

Supply voltage  

The supply voltage is of 230V. 

1.2. EARTH CONNECTION 

A suitable earth cable connected to a clamp is supplied with 
the welding machine. The earth clamp should be attached to 
the workpiece itself. The must be very good connection 
wherever made, as a poor or dirty connection will produce 
difficult welding conditions and could result in a bad weld. 

2. TECHNICAL INFORMATION 

The welding machine has an On-Off switch (1), with 
luminous led that indicates the operation of the car (7). 
The welder has a switch (2) that provides 2-position power, 
to select based on the power of which need is had. 
Using the knob (3) placed on the frontal you can regulate the 
welding wire speed. The knob should be used in conjunction 
with the voltage switch to give a smooth and perfect arc. 
You can see the speed of the wire through an indicator in 
M/min (4) on the front panel of the machine. 
The machine is fitted with a thermal overload protection 
which will automatically interrupt the welding current on 
reaching excessive temperatures; in which instance a yellow 
pilot light (5) will switch on. Once the temperature has 
decreased to a level low enough to allow welding, the light 
will switch itself off and the machine is again ready for use.  
The wire speed control electronic card is protected against 
peak of voltage by means of an easy to repalce fuse located 
on the wire setting card. Should said fuse burn, the machine 
will stop automatically and the malfunction will be signalled 
by a led located on the machine’s front panel (6). In order to 
change the burnt fuse, disconnect the machine from tha 
mains, unscrew the right side panel and replace the fuse by 
pulling it out. Use a small screwdriver to lever the fuse out. In 
any case do not connect the welding machine to the power 
generator. 

3. WELDING MODE  
3.1. NO-GAS 

The machine was designed for NO-GAS welding. 

4. SPOOL WIRE AND TORCH INSTALLATION 
4.1. SPOOLS INSTALLATION 

You can use spools of Kg. 0,2 , Kg. 0,4. 

4.2. WIRE-FEEDER MOTOR  

Make sure that the size of the groove in the feed roll 
corresponds to the welding wire size being used. The 
machines are arranged with feed roll for Ø 0,6 and 0,8 wire. 

Used for wire Ø 0.9, you can use the supplied roll. The feed 
roll has the wire diameter stamped on its side. The machines 
are equipped with proper shagreneed rolls suitable for 
welding with flux cored wire without gas protection. In any 
case, the machine uses only wire type FLUX. 

4.3. FEEDING WIRE INTO THE WELDING TORCH 

Cut the first 10 cm of wire and then check that there are no 
burrs or distortions at the cut end. Release the small wheel 
which is connected to the pressure arm by unscrewing the 
pressure screw and pass the wire through the feed roll’s 
groove and then re-insert the wire into the guide. At this 
point, make sure that the wire lies in the feed roll’s groove in 
a natural line. Drop the pressure arm on the wire and swing it 
back under the pressure screw. Pressure on the welding wire 
is regulated by turning the pressure screw, the correct 
pressure being critically important to the smooth operation of 
the welding machine. The optimum pressure is the one 
which ensures that the wire runs smoothly though allows the 
feed roll to slip in the event of a blockage in the torch. It is 
possible to adjust the friction of the paddle hub. If the hub 
over-runs, then increase the friction pressure in order to 
always have the spool wire drawn. On the contrary, if the 
friction pressure is too much, some tension can be released 
to obtain a regular wire feeding.  

4.4. TORCH CONNECTION 

The torch is connected directly to the welding machine so it 
is ready for use. A probable replacement of the torch must 
be done with care and if possible by a technician. To replace 
contact tips, it is necessary to unscrew or to pull it. Replace 
tip, check that it corresponds with the wire size and replace 
the gas shroud. For good wire feeding during welding 
operations, it is essential that the correct size parts are used 
for each wire. Keep always clean the contact tip.  

5. WELDING GUIDE  
5.1. GENERAL RULE 

When welding on the lowest output settings, it is necessary 
to keep the arc as short as possible. This should be achieved 
by holding welding torch as close as possible and at an 
angle of approximately 60 degrees to the workpiece. The arc 
length can be increased when welding on the highest 
settings, an arc length up to 20 mm can be enough when 
welding on maximum settings.  

5.2. GENERAL WELDING TIPS

From time to time, some faults may be observed in the weld 
owing to external influences rather due to welding machine’s 
faults. Here are some that you may come across :  

· Porosity 

Small holes in the weld, caused by break-down in gas 
coverage of the weld or sometimes by foreign bodies 
inclusion.  Remedy is, usually, to grind out the weld. 
Remember, check before the gas flux (about 8 
liters/minutes), clean well the working place and finally 
incline the torch while welding.  

· Spatter 

Small balls of molten metal which come out of the arc. A little 
quantity is unavoidable, but it should be kept down to a 
minimum by selecting correct settings and having a correct 
gas flow and by keeping the welding torch clean.  

· 

Narrow heap welding 

Can be caused by moving the torch too fast or by an 
incorrect gas flow.