Ratings Plate - Sealey MIGHTYMIG150.V2 Manual

8.4. SET THE WIRE TENSION AS DESCRIBED IN SECTION 5.2
8.5. MOUNT THE GAS CYLINDER
8.5.1. Strap the gas cylinder to the back of the machine. Two nylon straps are provided to hold small cylinders in place. Thread the straps
through the raised metal fixing loops on the back of the welder. Stand the gas cylinder on the rear platform and fix the straps around it as
shown in fig.10.
8.5.2.
Close the flow regulator before screwing it onto the cylinder. Screwing down the regulator will automatically open the cylinder valve. When
the sound of gas escaping is heard screw the regulator one further turn only. This will be sufficient to seal the cylinder.
WARNING! Excessive tightening of the flow regulator will over-compress the rubber sealing washer and allow the gas to escape slowly
‰
without being detected.
8.6. CONNECT GAS CYLINDER TO WELDER GAS INPUT. (KIT 120.802032)
8.6.1. Push the small adaptor into one end of the larger diameter hose. Push the
other end of the hose onto the ribbed gas input connector on the back of the
welder. Secure both ends of the hose with the jubilee clips provided. Push one
end of the smaller diameter gas hose into the open end of the adaptor and push
the other end into the regulator outlet, it will seal automatically. See fig10. To
release the gas hose, press the collet inwards on the quick couplers and pull
the hose out.
8.6.2. Turn the gas regulator knob halfway for a 2ltr/min flow and all way for maximum flow
of 4ltr/min.
8.6.3. Always remove the flow regulator after use if the machine is to be stored for any
length of time.
8.7. GAS TYPES
8.7.1. Welding mild steel with CO ² gas is appropriate for most welding tasks where
spatter and high build up of weld do not pose a problem. To achieve a
spatter-free and flat weld however, you must use an CO ² /Argon mixture. To weld
aluminium use:
Argon gas 0.8mm Contact Tip
8.8. CYLINDER SIZES
8.8.1. The platform at the rear of the welder will support cylinders up to a diameter
of 140mm, a height of 500mm and a maximum weight of 10kg. If you wish to use larger cylinders they must be properly secured to a
separate welding trolley. An industrial gas cylinder adaptor kit will be required. Contact your local Sealey stockist to order these items.
The following table is estimated duration of cylinders based on a flow rate of 2 litres per minute. Actual duration will be dependant upon
various job conditions including the operator's welding technique. All times are therefore approximate.
Disposable cylinders:
Argon ARG/100 300g = 1hour.
NOTE: When comparing prices, always check fill weights.
8.9. MIG/MAG GAS WELDING PRINCIPLES
8.9.1.
Welding wire is automatically fed through an insulated liner to the tip of the torch. The torch consists of a switch, liner, gas hose, and
control cable. The switch activates the wire feed roller and the gas flow. Releasing the switch stops the wire feed and gas flow. The weld
current is transferred to the electrode (the wire) from the contact tip at the torch end. The current switches (see section 6.3)
control the current to the electrode. Wire speed must be adjusted according to current output. The higher the current the faster the wire
speed.
A gas cup fits over the contact tip to direct gas flow
towards the weld, ensuring that the arc welding process
is shielded from oxidisation. The shielding gas also assists
heating of the weld. The torch is connected to
the positive side of a DC rectifier, and the negative clamp is
attached to the workpiece.

9. RATINGS PLATE

On the front of the welder is the ratings plate, giving the
following data:
1 -The standard relating to the safety and construction
of arc welding and associated equipment.
2 - Single phase transformer - rectifier.
3 - Welding with a continuous flow of welding wire.
4 - Single-phase AC supply.
5 - Rating of internal protection provided by casing.
6 - Output
U0: Rated maximum and minimum no load voltage.
I2, U2: Current and corresponding voltage.
X: Welding ratio based on a 10 minute cycle. 20% indicates 2 minutes welding and 8 minutes rest, 100% indicates
continuous welding.
8 - Welding current range.
7 - Mains Supply U1: Rated supply voltage and frequency. I1max: Maximum current.
9 - Serial Number. Specifically identifies each welder.
© Jack Sealey Limited
0.8mm Aluminium Wire (MIG/2/KAL08)
CO ² /100 390g = 1-1/4hours.
Argon/CO ² MIX/100 300g = 1 hour.
Original Language Version
CO ² /101 600g = 2 hours.
I1eff: Maximum effective current.
MIGHTYMIG150.V2 Issue:3 (F) 22/12/21
fig.10