Advertisement
4.7.
CONVERTING TO GASLESS WELDING.
4.7.1.. To weld without gas (using flux cored wire) the power input lead (fig.1.9) must be connected to the negative (-) terminal and the
earthing cable to the positive (+) terminal (fig.13).
Ensure that the machine is switched off and unplugged from the mains supply before carrying out this task.
4.7.2. Disconnect the gas safely.
4.7.3. Fit a 1.0mm tip to the torch.
4.7.4. Mount the flux cored wire reel and feed it through to the torch.
4.7.5. Use the multi-function selection control to navigate to the flux cored wire setting. Press to confirm.
5. MIG/MAG WELDING
A spool of welding wire is positioned on the welder's spool holder and automatically fed through an
insulated liner in the torch to the tip. The torch assembly consists of a switch, liner, gas hose, and
control cable. The switch activates the wire feed roller and the gas flow. Conversely, 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 end of the torch. A gas cup fits over the contact tip to direct the gas flow
towards the weld ensuring that the arc welding process is shielded from oxidising air contaminates.
The shielding gas also assists heating of the weld materials. (The welder can also be used in
gasless mode using flux cored wire). The torch is connected to the positive side of a DC rectifier,
and the negative clamp is attached to the workpiece.
IMPORTANT: Should you have no welding experience, we recommend you seek
training from an expert source to ensure your personal health & safety. Good MIG
welding may be achieved only with continued, supervised practice.
5.1.
PREPARATION FOR WELDING
IMPORTANT: BEFORE YOU COMMENCE, MAKE SURE THE MACHINE IS DISCONNECTED FROM THE ELECTRIC SUPPLY. IF
WELDING A MOTOR VEHICLE, DISCONNECT THE BATTERY OR FIT AN ELECTRONIC CIRCUIT PROTECTOR. WE
RECOMMEND STRONGLY THE USE OF SEALEY "PROSAF/12V OR 24V" IN ORDER TO PROTECT SOPHISTICATED
ELECTRONICS. ENSURE THAT YOU HAVE READ & UNDERSTOOD THE ELECTRICAL SAFETY INSTRUCTIONS IN SECTION 1.
5.1.1. Clean the area to be welded: remove any oxidisation, grease and paint, if necessary, grind the area to a bright finish.
5.1.2. Mode: Select required mode via the multi-function adjustment control (fig.2.5).
A second press will show the required earth and torch connections and the recommended gas ratio.
5.1.3. Subsequent presses will allow the electrode diameter and material thickness to be entered, using the multi-function control.
5.1.4. Having set the material thickness, a further press of the multi-function control will bring up the default welding settings.
The voltage and wire speed may be adjusted by use of the right and left adjustment controls (fig.2.2/2.3).
NOTE: The recommended settings are shown by the green sector of the display. Inappropriate settings are denoted by the voltage
and wire feed numerals turning red.
5.2.
Aluminium welding
To weld aluminium use:
5.2.1.
● Argon gas,
● 0.8mm Contact Tip (MIG927),
● 0.8mm Aluminium Wire, (MIG/2KAL08).
A clean torch liner is essential, as any contamination of the aluminium wire will produce a poor weld.
5.2.2. Using the multi-function selection control, enter the aluminium welding pages, and follow the on-screen instructions as in 5.1.
NOTE: Arc welding cables are not supplied with this machine. Sealey part no: MMA01 is suitable.
WARNING! Ensure that the inverter is not plugged into the mains power supply before connecting or disconnecting cables.
For electrical installation, see Safety Instructions (Section 1).
6.1.
Using the multi-function selection control, enter the stick welder pages, and follow the on-screen instructions as in 5.1.
6.1.1. Observe the location of the torch and earth cables and connect accordingly.
6.2
Enter the electrode type (60xx or 70xx), diameter and material thickness when prompted.
6.3.
The welding current and gas post flow may be adjusted from the default settings in this mode.
7. TIG WELDING
WARNING! Ensure that the inverter is not plugged into the mains power supply before connecting or disconnecting cables.
For electrical installation, see Safety Instructions (Section 1).
7.1.
Using the multi-function selection control, enter the TIG welder pages, and follow the on-screen instructions as in 5.1.
7.1.1. Observe the location of the torch and earth cables and connect accordingly.
7.2.
Enter the tungsten electrode diameter and material thickness when prompted.
7.3.
The welding current may be adjusted in this mode.
© Jack Sealey Limited
fig.12
Original Language Version
fig.13
INVMIG200LCD ISSUE:1 - 11/08/17
`
Advertisement
