Lincoln-electric IM348 AC-225-GLM Manuel d'utilisateur

LINCOLNELECTRIC®AC-225-GLMWELDING POWER SOURCEbyIM347April, 1998Contents PageSafety Precautions ...

– 10 –Figure 1 is a diagram of the welding circuit. The circuitbegins where the electrode cable is attached to the weldingmachine and ends where the w

– 11 –Four simple manipulations are of prime importance.Without complete mastery of these four, further welding ismore or less futile. With complete

– 12 –Do the following:1. Learn to strike the arc by scratching the electrode overthe plate. Be sure the angle of the electrode is correct. Ifyou have

– 13 –Fillet WeldsWhen welding fillet welds, it is very important to hold theelectrode at a 45° angle between the two sides, or the metalwill not dist

– 14 –1. Use 1/8 or 3/32" Fleetweld 180 electrode.2. On thin metal, use 60-75 amps. (14 ga 75 amps — 16 ga60 amps.)3. Hold the electrode in a 30-

– 15 –5. Use the back-stepping method. Begin to weld 3" fromthe heel of the share and weld to the heel. The secondweld will begin 6" from th

– 16 –After welding Cast Iron, protect the casting against fastcooling. Put it in a sand (or lime) box.If sand or lime is not available, cover it with

– 17 –USING THE CARBON ARC TORCH. . . Welding Aluminum and Copper Alloys...Brazing and Soldering. . . Heating, Bending and StraighteningRequired Equip

– 18 –Use the thumb control on the arc torch to rotate the carbonsuntil they touch. Start the arc by reversing the thumb con-trol setting to spread th

– 19 –JointsWelding Procedures1. Use the recommended AC currents and carbon sizes list-ed in the Table on page 17. A headshield is required.2. Use a l

– 2 –FOR ENGINEpowered equipment.1.a. Turn the engine off before troubleshooting and maintenancework unless the maintenance work requires it to be run

– 20 –These electrodes are used for general purpose all-positionfabrication and repair welding; also the best choice for pipewelding and sheet metal b

– 21 –ElectrodeConforms to Test Polarity Sizes and Current Ranges (Amps.)Coating Requirements of Electrode(+) = “Reverse”Color AWS Class Brand Name(–)

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– 23 –Now Available...12th EditionThe Procedure Handbook of Arc WeldingWith over 500,000 copies of previous editions publishedsince 1933, the Procedur

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– 3 –SAFETYARC RAYS can burn.4.a. Use a shield with the proper filter and coverplates to protect your eyes from sparks andthe rays of the arc when wel

– 4 –FOR ELECTRICALLYpowered equipment.8.a. Turn off input power using the disconnectswitch at the fuse box before working onthe equipment.8.b. Instal

– 5 –SAFETYPRÉCAUTIONS DE SÛRETÉPourvotre propre protection lire et observer toutes les instructionset les précautions de sûreté specifiques qui parra

– 6 –Thank Youfor selecting a QUALITY product by Lincoln Electric. We want youto take pride in operating this Lincoln Electric Company product •••as m

– 7 –OPERATING INSTRUCTIONSInput Power and Grounding ConnectionsBefore starting the installation, check with the power com-pany to be sure your power

– 8 –How To Use Parts List1. Refer to the drawing below.2. Find the part on the drawing.3. Using the item number from the drawing find the part name a

– 9 –Attaching Work Cable to ClampInsert work cable through strain relief hole in work clampand fasten securely with bolt and nut provided.Electrode a