OPERATING INSTRUCTIONS
WARNING
•Do not touch electrically live parts or electrode with skin or wet clothing.
•Insulate yourself from work and ground.
ELECTRIC • Always wear dry insulating gloves.
SHOCK can kill
•Keep your head out of fumes.
•Use ventilation or exhaust to remove fumes from breathing zone.
FUMES AND
GASES can be
dangerous
•Keep flammable material away.
•Do not weld upon containers which have held combustibles.
WELDING SPARKS can cause fire or explosion
• Wear eye, ear and body protection.
ARC RAYS
can burn
IMPORTANT SAFETY NOTE: In 2T mode, this DC Constant Voltage wire welder provides “COLD” electrode when the gun trigger is not operated. Conversely, the output terminals are “LIVE” when the gun trigger is “activated” when pressed in 2T mode, or triggered on in 4T mode.
Refer to wire feeder manual for a description of the 2T/4T trigger operation.
Duty Cycle
The machine is rated at the following duty cycles:
Duty Cycle* | Output Amps | Arc Volts |
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30% | 320 | 30 |
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60% | 240 | 26 |
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100% | 190 | 23.5 |
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*Based on 10 min. time period (i.e., for 60% duty cycle, it is 6 minutes actual welding and 4 minutes with no welding output, but with the input power remaining on keeping the cooling fans operative.)
Control Panel
Power Switch
The mains power switch is incorporated in the “coarse” output voltage control rotary switch. In the “0” position (fully counter clockwise) the input mains power is switched off.
Pilot Light
This light illuminates when the input mains power is switched on
Volts Control
The output voltage is controlled by two rotary switches. One rotary switch provides four “coarse” voltage settings as well as switching the mains power on. The other rotary switch provides the user with a selection of eight “fine” voltage settings. The selection between these two rotary switches allows the user to select any one of
The approximate weld voltages for the rotary switch positions are:
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Coarse | Fine | Volts | Coarse | Fine | Volts |
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1 | 1 | 13.0 | 2 | 1 | 18.0 |
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1 | 2 | 14.0 | 2 | 2 | 18.5 |
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1 | 3 | 15.0 | 2 | 3 | 19.0 |
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1 | 4 | 16.0 | 2 | 4 | 19.5 |
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1 | 5 | 16.5 | 2 | 5 | 20.0 |
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1 | 6 | 17.0 | 2 | 6 | 20.5 |
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1 | 7 | 17.5 | 2 | 7 | 21.0 |
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1 | 8 | 18.0 | 2 | 8 | 21.5 |
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3 | 1 | 21.5 | 4 | 1 | 25.0 |
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3 | 2 | 22.0 | 4 | 2 | 25.5 |
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3 | 3 | 22.5 | 4 | 3 | 26.0 |
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3 | 4 | 23.0 | 4 | 4 | 26.5 |
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3 | 5 | 23.5 | 4 | 5 | 27.0 |
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3 | 6 | 24.0 | 4 | 6 | 28.0 |
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3 | 7 | 24.5 | 4 | 7 | 29.0 |
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3 | 8 | 25.0 | 4 | 8 | 30.0 |
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Current Control
Use the wire feed speed control on the wire feeder to adjust the speed at which the electrode wire feeds when welding. This is in effect a current control as the power source will deliver the current necessary to melt the wire. The higher the speed, the more current will be required.
Over temperature light
Indicates that the thermostats have operated to protect unit from over temperature.
Setting Up for Welding
(Also refer to the wire feeder instruction manual.)
The following items are required:
1)A reel of wire of suitable size and type .
2)A suitable gun and cable assembly with a “Euro” connector and the correct tip and, if necessary gas nozzle for the consumable being used. (A Magnum FM400 gun is supplied).
3)A work return cable and clamp. (supplied)
4)Normal welding accessories including helmet or hand shield with suitable lens, gloves etc.
5)If a gas shielded process is to be used, a cylinder of appropriate gas is required. (Regulator/flowmeter and hose are supplied.)
Page 8 | IMA 574B | |
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