Harbor Freight Tools 45949 operating instructions Troubleshooting

Page 8

7.Adjust the air pressure from the Control Filter Knob on the back panel.

Caution: Verify that no wires, cables, or other obstructions are below the cutting area.

8.Place the Torch Head on the metal to be cut and press the Start button on the Torch handle.

Start to cut slowly, then increase the speed to obtain the desired cut quality. Regulate the speed to obtain a good cut. See illustration “A” below. Air plasma will create a straight arc with stainless steel or aluminum, or a 5” arc with softer steel. The arc varies depending on speed, material, and thickness.

AB

In some cutting operations, it may be necessary to start the cut from a point away from the edge. See illustration “B” above. The backfire from this operation could shorten the life of the torch components, so it is recommended to do this cut as fast as possible.

Slightly incline the Torch so that the backfire particles are blown away by the nozzle (and by the operator), instead of bouncing back into the Torch. Clean away slag and incrustations from the Torch Head. Spraying or immersing the Torch Head in an anti- slag substance, minimizes the quantity of incrustation that would stick to it.

9.When the cutting process is complete, release the Start button on the Torch handle, place the Torch handle in a safe place, and wait 5 minutes before turning the On/Off switch to “O” to allow proper cooling. The pilot arc is automatic, not manually controlled. Handle the torch components with care and protect them from damage.

10.Unplug the line cord from the electrical outlet.

Troubleshooting

SKU 45949

Page 8

REV 06/03

Image 8
Contents 45949 Specifications Save This Manual Safety Warnings and PrecautionsPage Plasma Cutting Safety Precautions Page Unpacking Assembly OperationTroubleshooting Maintenance Main Parts ListMain Assembly Drawing 46.1Torch Assembly Drawing Torch Parts List