Stimmen - 3, Durchschnittliche Bewertung: 3.3
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Anleitung Zusammenfassung
Incorrect welding technique:2. Maintain 1/2” or less stickout. Keep arc on leading edge of weld puddle. Hold gun at proper angles as stated under Holding The Torch on page 20. Insufficient weld material: 3. Increase wire feed speed. Insufficient weld heat: 4. Reduce Welding Speed. Weld Not Adhering Properly Gaps present between weld and previous bead or between weld and workpiece. See areas below. Cross Section Bend at joint Possible Causes and Solutions Dirty workpiece:1. Make certain that workpiece is clean and free from oil, coatings, and other residues. Insufficient weld material: 2. Increase wire feed speed. Incorrect welding technique:3. Place stringer bead at correct place in joint. Adjust workpiece position or weld angle to permit proper welding at bottom of workpiece. Pause briefly at sides when using a weave bead. Keep arc on leading edge of weld puddle. Hold gun at proper angles as stated under Holding The Torch on page 20. Cross Section Possible Causes and Solutions Improper clamping:1. Make sure that pieces are clamped securely in place. Make tack welds to help hold pieces. Excessive heat:2. Weld a small portion and allow to cool before proceeding. Reduce wire feed speed. Increase weld speed. Crooked/wavy bead Porosity Small cavities or holes in the bead. Top View Top View Possible Causes and Solutions Stickout too long:1. Reduce stickout. Inaccurate welding:2. Use two hands or rest hand on steady surface. Possible Causes and Solutions Stickout too long:1. Reduce stickout. Dirty workpiece or welding wire:2. Make certain that workpiece and wire are both clean and free from oil, coatings, and other residues. Insufficient gas flow at weld: 3. Increase flow of shielding gas. Dirty nozzle: 4. Clean nozzle by following the directions in the cleaning section of this manual. Wrong type of shielding gas:5. Use only the correct welding gas for the application and wire. Excessive Spatter Spatter that is grainy and large. Fine spatter is normal. Top View STRIKE TEST A test weld on a piece of scrap can be tested by using the following procedure. WEAR ANSI GOGGLES DURING THIS PROCEDURE. After two scraps have been welded togeth1. er and the weld has cooled, clamp one scrap* in a sturdy vise. Stay clear from underneath while you 2. strike the opposite scrap with a heavy hammer, preferably a dead-blow hammer. A good weld will deform but not break. 3. A poor weld will be brittle and snap at the weld. *This test will damage the weld it is performed on. This test is only an indicator of weld technique and is not intended to test working welds. Possible Causes and Solutions Wire feeding too fast: 1. Reduce wire feed speed. Stickout too long:2. Reduce stickout. Dirty workpiece or welding wire:3. Make certain that workpiece and wire are both clean and free from oil, coatings, and other residues. Insufficient gas flow at weld: 4. Increase flow of shielding gas. Shielding gas being blown away from 5. weld area: Protect the weld area from drafts. When the Weld is Completed Lift the Welding Wire completely away from any grounded object. Set the face shield 21. down. Then, turn the Power Switch to its “OFF” position. Unplug the Power Cord (54) from the electrical outlet. Then, make sure to set the 22. Welding Torch (51) on a nonflammable, nonconductive surface. NOTE: 23. A wire brush/hammer (not included) can now be used to clean up the weld. 24. CAUTION! The weld may still be quite hot, and sparks/chips may fly when cleaning. Make sure to continue wearing ANSI-approved safety impact eye goggles and other protective wear when cleaning a weld. The hammer can be used to knock off any excess spatter and to help knock down any a. ridges. Make sure not to damage the weld or material when striking it. The wire brush can then be used to help remove oxidation and some fine spatter.b. INSPECTION, MAINTENANCE, AND CLEANING WARNING! Before performing any maintenance on the Welder, unplug the Power Cord (54) from its electrical outlet and allow all components of the Welder to completely cool. Periodically open the Access Panel (31) 1. from the unit and, using compressed air, blow out all dust and debris from the interior. Always store the Welder in a clean, dry, 2. safe location out of reach of children and other unauthorized people. For optimal weld quality, clean and 3. inspect the Contact Tip (51b) and Nozzle (51a) before each use, as follows: Nozzle Inspection, Cleaning, and Replacement Turn the Nozzle (51a) counterclockwise 1. while pulling to remove. Scrub the interior of the Nozzle (51a) 2. clean with a wire brush. Examine the end of the Nozzle (51a). 3. The end should be flat and even. If the end is uneven, chipped, melted, cracked, or otherwise damaged, the Nozzle will adversely effect the weld and should be replaced. Reinstall the Nozzle (51a) after 4. inspecting and cleaning the Contact Tip (51b). Contact Tip Inspection, Cleaning, And Replacement Make sure the entire Welding Torch (51) 1. is completely cool before proceedi...