Why is my LORCH M 2070 CuSi machine switching off?
The LORCH Welding System machine might be switching off due to the duty cycle being overloaded, which is indicated by control lamp 39. Allow the machine to cool down. Another cause could be insufficient cooling of machine parts, so check the air inlet and outlet.
What to do if there is less welding performance in my LORCH M 2070 CuSi?
If your LORCH Welding System exhibits less welding performance, it could be due to several reasons: * A missing phase: Check the machine at another socket and inspect the mains and fuses. * Poor ground connection: Ensure the best possible contact between the ground clamp and the workpiece. * Ground cable not properly plugged in: Fasten the ground cable by turning the plug to the right. * Defective torch: Repair or replace the torch. * Defective main rectifier: Check and replace the main rectifier, if required.
What to do if my LORCH Welding System has irregular or no wire feeding?
If your LORCH Welding System is experiencing irregular or no wire feeding, consider the following: 1. Incorrect contact pressure at the wire-feed rolls: Adjust it as described in the manual. 2. Torch defect: Check and replace if necessary. 3. Missing or dirty brass pipe in the central connection: Install or clean the brass pipe. 4. Poor quality of welding wire: Check and replace if necessary. 5. Rust formation on the welding wire: Check and replace if necessary. 6. Dirty torch liner: Disconnect the torch, unscrew the contact tip, and clean the liner with compressed air. 7. Dejected torch liner: Check and replace if necessary. 8. Motor brake adjusted too strongly: Adjust as described in the manual. 9. Defective main rectifier: Check and replace if required.
Why is there no shielded gas coming from my LORCH M 2070 CuSi Welding System?
If there is no shielded gas in your LORCH Welding System, the possible causes are: * The gas cylinder is empty: Replace it. * Defective torch: Check and replace it. * Pressure reducer is dirty or defective: Check and replace it. * Valve of gas cylinder defective: Replace the gas cylinder.
What to do if my LORCH M 2070 CuSi Welding System's torch button doesn't work?
If there is no function when the torch button is pressed on your LORCH Welding System, the issue might be: * The nut of the torch hose is not tight: Tighten it. * No connection of the control cable in the torch hose: Check and change if necessary. * Overload of the machine and thermal protection is active (control lamp 39 indicates overload): Allow the machine to cool down at no load.
Why is my LORCH M 2070 CuSi Welding System's shielding gas not switching off?
If the shielding gas in your LORCH Welding System is not switching off, it could be because the valve of the gas cylinder is dirty or does not close. Remove the torch and pressure reducer and clean it with compressed air.
Why is the plug of ground cable hot in my LORCH M 2070 CuSi?
If the plug of the ground cable is hot on your LORCH Welding System, check that the plug was tightened by turning it to the right.
What causes an unstable arc in my LORCH M 2070 CuSi?
An unstable arc in your LORCH Welding System can be caused by a contact tip with the wrong diameter or a worn-out contact tip. Change the contact tip.
How to fix irregular wire feeding in LORCH M 2070 CuSi Welding System?
Irregular wire feeding or wire welds to the contact tip in your LORCH Welding System can occur if the wire electrode is tight at the spool. Check and change it if necessary. It can also happen if there is a burr at the wire beginning, so cut the wire beginning again.
Why is my LORCH M 2070 CuSi's torch too hot?
If the torch of your LORCH Welding System is too hot, check if the contact tip is tight.
Comprehensive safety measures for welding, covering personal protection, fire prevention, and equipment handling.
Instructions for connecting the welding torch to the machine's central socket for operation.
Guidance on properly connecting the welding unit to the electrical mains supply.
Steps for correctly mounting and preparing the wire spool for the welding process.
Procedure for inserting the welding wire electrode into the torch and feeding mechanism.
Instructions on how to connect the ground cable securely to the workpiece or welding table.
Details on connecting and operating the wire feed mechanisms, including double and quadruple roller types.
Procedure for connecting the gas cylinder, pressure reducer, and gas hose to the welding machine.
Steps to modify the machine for welding aluminium, including changing wire rolls and liners.
Details on the main switch, voltage range selector, mode selector, step switch, wire-feed control, and overload indicator.
Guidance on selecting and operating the 2-stroke, 4-stroke, and spot welding modes.
Explanation of the fundamental principles of MIG/MAG welding, including arc, wire feed, and shielding gas.
Description of different arc types (short circuit, transitional, long, spray) and their characteristics.
Techniques for holding and manipulating the welding torch in various positions for optimal weld quality.
Guidance on controlling arc length and wire electrode extension for desired weld penetration and bead formation.
Essential checks and cleaning procedures to ensure the machine's long-term reliable operation.
General| Max Output Current | 200 A |
|---|---|
| Protection Class | IP23 |
| Insulation Class | F |
| Type | MIG/MAG |
| Welding Process | MIG/MAG |
| Wire Diameter | 0.8 - 1.0 mm |
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