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Yunnan Science and Technology Development Co., the giant energy product support

Technical Support &Troubleshooting
[How to repair and maintain engine type arc welding generator]
Products contains four parts, the gasoline engine as the prime generator; large power, small size, high efficiency frequency (600Hz) welding generator, and the SCR arc voltage and current feedback control circuit.
When generator works, it provides the power to the whole system. The generator and the gasoline engine is mounted coaxially so that it is small in size, light weight, simple operation, stable performance, and easy to move. Also it can be used in places with no power supply.
Compare to conventional welder, arc welder have different characteristics so that it requires additional routine maintenance. When maintenance, user should pay attention to the following:
A level maintenance: After every 50 hours
1. Cleaning oil filter cup, unscrew the oil drain plug carburetor float chamber decentralization discharged sediment;
2. Clean the spark plug, check the spark plug electrode gap, and adjusted if necessary;
3. Check the valve clearance and adjust if necessary;
4. Cleaning crankcase oil change.
Class B maintenance: After every 100 hours of operation
1. Completion of the A-level maintenance of all projects;
2. Cleaning the tank, carburetor float chamber, clean or replace the air filter;
3. Remove the wind shield, remove the flywheel blades and head, the body heat sink fouling;
4. Removing the cylinder head, remove carbon deposits;
5. Check the ignition timing and adjust if necessary.
C-level maintenance: After every 200 hours of operation
1. Class B complete all projects and maintenance;
2. Cleaning the carburetor, using compressed air to blow through the oil channel and orifice;
3. Check valve seal, valve grinding, if necessary;
4. Removing the piston rod set, remove carbon pistons, piston rings;
5. Remove the muffler coke.
In addition to that, after 500 hours operation, it is required to conduct a comprehensive inspection, when the parts wear exceeds the limit. It should be promptly repaired or replaced. Repair Guide: 1) For manually start the engine, if used improperly, pull the rope easily damaged boot disk and use, especially we want to talk about pulling the disc repair. The pull disk failure often appear in the spring, because when you start to pull back the line too much or too fast, it will result in winding fixed-ends lose-off the hook. Please use the a fitting screwdriver to remove the screws and pull the central disk, slowly remove the plastic tray, (but beware of the plate spring pop wounding). With needle-nose pliers to re-hook fixed-end. But if it is broken or no longer elastic spring, it will need to be replaced. It should be noted to a little grease reassembled on clockwork.
2) No welding current output, check the generator brushes, normally once every 800 hours to replace the carbon brushes.
Note:
1) in the plateau region, the standard gasoline engine carburetor air-fuel mixture will be too strong ---- engine running performance will decrease, and fuel consumption will increase.
To change the engine running performance in the plateau region, one can change in the main nozzle carburetor with smaller aperture, while re-adjust the idle speed screw. If you always use the gasoline engine at 1,830 meters above sea level plateau region, please contact our service department to purchase another plateau carburetor.
Even with the proper nozzle, the gasoline engine power changes every 305 meters and drop about 3.5%. If not adjusted, the plateau will affect the power drop caused much greater than these.
1) Due to the company's products with the technology continues to improve, the shape of the site, models, colors, only as a reference, not as acceptance criteria.

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