OPERATION | ||
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(See Customer Assistance Policy in the front of this Instruction Manual)
CASE FRONT CONTROLS (See Figure b.1)
| FIGURE b.1 |
1 | 7 |
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8
2
9
10 3 
4
5
6
WIRE FEED SPEED KNOb
Wire Feed Speed, CV Operation
When Across the Arc models are operated with CV power sources, the wire feed speed will remain a con- stant value, independent of arc voltage changes, as along as the arc voltage does not drop below the val- ues per the following table.
83% Wire Feed Speed
The 83% wire feed speed reduces the wire feed speed to 83% of the original set value when activated. For example, if the original wfs = 200 in/min, the feed- er will regulate to 0.83 x 200 = 166 in/min.
The 83% trigger requires a gun with a dual procedure switch.
This feature is often useful when welding pipe, and a “cooler” procedure is required on the bottom portion.
CV OPERATION
Minimum Arc Volts | Maximum WFS |
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15 V | 280 |
17 V | 340 |
21 V | 440 |
24 V | 520 |
27 V | 600 |
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ITEM | DESCRIPTION |
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1 | Wire Feed Speed/Amperage Display |
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2 | Wire Feed Speed LED |
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3 | Amperage LED |
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4 | Wire Feed Speed Knob |
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5 | 5 pin gun trigger connector |
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6 | Work Clip Connection |
7 | Thermal LED |
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8 | Voltage Display |
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9 | Voltage LED |
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10 | |
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THERMAL LED, MOTOR
OVERLOAD
The thermal light illuminates when the wire drive motor draws too much current. If the thermal light illu- minates, the wire drive will automatically shutdown for up to 30 seconds to allow the motor to cool. To start welding again, release the gun trigger, inspect the gun cable, liner (and conduit). Clean and make repairs as necessary. Start welding again when the problem has been safely resolved.
For best results, keep the gun cable and conduit as straight as possible. Perform regular maintenance and cleaning on the gun liner, conduit and gun. Always use quality electrode, such as