To Next PageTo Next PageWhat to do if my Lincoln Electric Welding System machine has maximum output but no control?
If your Lincoln Electric Welding System has maximum output but no control, the issue might be with the power SCR or the control board. * To check the power SCR, remove all gate leads (G1, G2, and G3) at the PC board connector J4. If the welder still has an open circuit voltage, the power SCR is likely defective. * You can also check the control board.
Why does the input contactor chatter on my Lincoln Electric IDEALARC R3R 600-I Welding System?
If your Lincoln Electric Welding System machine input contactor chatters, it could be due to a faulty input contactor or low line voltage. Consider repairing or replacing the contactor. If the line voltage is low, check with your power company.
What to do if my Lincoln Electric IDEALARC R3R 600-I reduces to low output under load?
If the Lincoln Electric Welding System machine comes on but reduces to low output under load, and remains there until the load is broken and the arc restarted, it is possible that the excessive load is causing the over-load protection on the control board to operate. Reduce the load. It's also possible that the machine output is shorted, triggering the overload protection on the control board. Turn the machine off and remove the short.
How to fix a Lincoln Electric IDEALARC R3R 600-I that will not shut off?
If the Lincoln Electric Welding System welder will not shut off, the input contactor contacts may be frozen. Replace the input contactor.
Why doesn't my Lincoln Electric IDEALARC R3R 600-I Welding System have maximum output?
If your Lincoln Electric Welding System does not have maximum output (67 to 71 volts), a possible cause is an input fuse blown, which makes the machine single phased. Replace the fuse or repair the input line, and check the reason for the fault. Another possible cause is one phase of main transformer windings open. In this case you should repair it.
What to do if the remote current control is not functioning on my Lincoln Electric Welding System?
If the optional remote current control on your Lincoln Electric Welding System is not functioning, first ensure the current control switch is in the 'remote' position. Check that leads 75, 76, and 77 are correctly connected on models with a terminal strip. Repair any broken remote control leads, and connect or repair any open leads or connections in the current control circuit. Also, ensure the control PC board plug is securely connected.
What to do if my Lincoln Electric Welding System optional remote current control is not functioning?
If the optional remote current control on your Lincoln Electric Welding System is not functioning, here are some things to check: * Make sure the current control switch is in the “remote” position. * Ensure leads 75, 76, and 77 are connected to the correct numbers on models with a terminal strip. * Repair any broken remote control leads. * The remote control potentiometer may be open. * Check for an open lead or connection in the current control circuit; connect or repair as needed. * Ensure the control PC board plug is connected and not loose; connect the plug if necessary. * There may be control circuit problems.
Why does my Lincoln Electric Welding System machine come on but reduce to low output under load?
If your Lincoln Electric Welding System starts but reduces to low output under load, and remains there until the load is broken and the arc restarted, it could be due to: * An excessive load causing the overload protection on the control board to activate. Try reducing the load. * A shorted machine output triggering the overload protection on the control board. Turn off the machine and remove the short. * A defective control circuit.
What to do if my Lincoln Electric Welding System machine comes on but soon trips off while under load and the High Temperature Warning Light glows?
If your Lincoln Electric Welding System is tripping off under load and the High Temperature Warning Light is on, it means the thermostat has tripped. Here's what to check: * Ensure all case openings are unobstructed for proper air circulation. * Operate the machine at its rated current and duty cycle. * Inspect the fan for proper operation, checking the leads and motor bearings. You can test the fan on a 115-volt line. * A shorted diode or SCR in the power rectifier bridge may also be the reason.
Why is the welding arc variable or sluggish on my Lincoln Electric IDEALARC R3R 600-I Welding System?
If you're experiencing a variable or sluggish welding arc with your Lincoln Electric Welding System, start by checking and cleaning the work or electrode cable connections to ensure they are not causing poor contact. Verify that the current is appropriate for the rod type and size you are using. Also, inspect the welding leads to confirm they are adequately sized.
General| Brand | Lincoln Electric |
|---|---|
| Model | IDEALARC R3R 600-I |
| Category | Welding System |
| Language | English |
