Handler 120 / 150 And Piecemaker 14A Gun
OM-210 088DNovember 1999ProcessesMIG (GMAW) WeldingFlux Cored (FCAW) WeldingDescriptionArc Welding Power Source And WireFeederHandler 120 / 150 AndPiecemaker 14A Gun
From Hobart to YouThank you and congratulations on choosing Hobart.Now you can get the job done and get it done right.We know you don’t have time to do it any other way.This Owner’s Manual is designed to help you get themost out of your Hobart products. Please take timeto read the Safety precautions. They will help youprotect yourself againstpotential hazards on theworksite. We’ve madeinstallation and operationquick and easy. With Hobart you can count onyears of reliable service with propermaintenance. And if for some reason the unitHobart is registered to the needs repair, there’s a Troubleshooting sectionISO 9001 Quality Systemthat will help you figure out what the problemStandard.is. The parts list will then help you to decidewhich exact part you may need to fix theproblem. Warranty and service information foryour particular model are also provided.Hobart Welders manufactures a full lineof welders and welding related equipment.For information on other quality Hobartproducts, contact your local Hobart distributorto receive the latest full line catalog orindividual catalog sheets. To locate your nearestdistributor or service agency call 1-877-Hobart1.Hobart offers a TechnicalManual which providesmore detailed service andparts information for yourunit. To obtain a TechnicalManual, contact your localdistributor. Your distributorcan also supply you withWelding Process Manualssuch as SMAW, GTAW,GMAW, and GMAW-P.
TABLE OF CONTENTSThe following terms areused interchangeablythroughout this manual:MIG GMAWOM-210088DSECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1. Symbol Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2. Arc Welding Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3. Additional Symbols for Installation, Operation, and Maintenance . . . . . . . . . . . . . . . . . . . . . .1-4. Principal Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5. EMF Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 1. CONSIGNES DE SECURITE – LIRE AVANT UTILISATION . . . . . . . . . . . . . . . . . . . . . .1.1 Signification des symboles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.2 Dangers relatifs au soudage à l’arc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.3 Dangers supplémentaires en relation avec l’installation, le fonctionnementet la maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.4 Principales normes de sécurité . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.5 Information sur les champs électromagnétiques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 2 – SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2. Duty Cycle And Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3. Volt-Ampere Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 3 – INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1. Installing Welding Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2. Changing Polarity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3. Process/Polarity Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4. Installing Gas Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5. Selecting A Location And Connecting Input Power For 120 VAC Model . . . . . . . . . . . . . . . .3-6. Selecting A Location And Connecting Input Power For 230 VAC Model . . . . . . . . . . . . . . . .3-7. Electrical Service Guide For 230 VAC Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8. Installing Wire Spool And Adjusting Hub Tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9. Threading Welding Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 4 – OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1. Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2. Weld Parameters For 120 VAC Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3. Weld Parameters For 230 VAC Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 5 – MAINTENANCE &TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1. Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2. Overload Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3. Changing Drive Roll Or Wire Inlet Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4. Replacing Gun Contact Tip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5. Cleaning Or Replacing Piecemaker 14-A Gun Liner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6. Troubleshooting Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 6 – ELECTRICAL DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 7 – MIG WELDING (GMAW) GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1. Typical MIG Process Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2. Typical MIG Process Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3. Holding And Positioning Welding Gun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-4. Conditions That Affect Weld Bead Shape . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5. Gun Movement During Welding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6. Poor Weld Bead Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7. Good Weld Bead Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8. Troubleshooting – Excessive Spatter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-9. Troubleshooting – Porosity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-10. Troubleshooting – Excessive Penetration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-11. Troubleshooting – Lack Of Penetration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-12. Troubleshooting – Incomplete Fusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-13. Troubleshooting – Burn-Through . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-14. Troubleshooting – Waviness Of Bead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-15. Troubleshooting – Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-16. Common MIG Shielding Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 8 – PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6363738
SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USINGsom nd 4/981-1. Symbol UsageMeans Warning! Watch Out! There are possible hazardswith this procedure! The possible hazards are shown inthe adjoining symbols.Y Marks a special safety message. Means “Note”; not safety related.This group of symbols means Warning! Watch Out! possibleELECTRIC SHOCK, MOVING PARTS, and HOT PARTS hazards.Consult symbols and related instructions below for necessary actionsto avoid the hazards.1-2. Arc Welding HazardsY The symbols shown below are used throughout this manual tocall attention to and identify possible hazards. When you seethe symbol, watch out, and follow the related instructions toavoid the hazard. The safety information given below is onlya summary of the more complete safety information found inthe Safety Standards listed in Section 1-4. Read and follow allSafety Standards.D If earth grounding of the workpiece is required, ground it directlywith a separate cable.Y Only qualified persons should install, operate, maintain, andrepair this unit.D Wear a safety harness if working above floor level.D Keep all panels and covers securely in place.Y During operation, keep everybody, especially children, away.D Clamp work cable with good metal-to-metal contact to workpieceor worktable as near the weld as practical.ELECTRIC SHOCK can kill.Touching live electrical parts can cause fatal shocksor severe burns. The electrode and work circuit iselectrically live whenever the output is on. The inputpower circuit and machine internal circuits are alsolive when power is on. In semiautomatic or automatic wire welding, thewire, wire reel, drive roll housing, and all metal parts touching thewelding wire are electrically live. Incorrectly installed or improperlygrounded equipment is a hazard.D Do not touch electrode if you are in contact with the work, ground,or another electrode from a different machine.D Use only well-maintained equipment. Repair or replace damagedparts at once. Maintain unit according to manual.D Insulate work clamp when not connected to workpiece to preventcontact with any metal object.D Do not connect more than one electrode or work cable to anysingle weld output terminal.SIGNIFICANT DC VOLTAGE exists after removal ofinput power on inverters.D Turn Off inverter, disconnect input power, and discharge inputcapacitors according to instructions in Maintenance Sectionbefore touching any parts.D Do not touch live electrical parts.D Wear dry, hole-free insulating gloves and body protection.D Insulate yourself from work and ground using dry insulating matsor covers big enough to prevent any physical contact with the workor ground.D Do not use AC output in damp areas, if movement is confined, or ifthere is a danger of falling.D Use AC output ONLY if required for the welding process.D If AC output is required, use remote output control if present onunit.D Disconnect input power or stop engine before installing orservicing this equipment. Lockout/tagout input power according toOSHA 29 CFR 1910.147 (see Safety Standards).D Properly install and ground this equipment according to itsOwner’s Manual and national, state, and local codes.D Keep your head out of the fumes. Do not breathe the fumes.D Always verify the supply ground – check and be sure that inputpower cord ground wire is properly connected to ground terminal indisconnect box or that cord plug is connected to a properlygrounded receptacle outlet.D When making input connections, attach proper grounding conductor first – double-check connections.D Frequently inspect input power cord for damage or bare wiring –replace cord immediately if damaged – bare wiring can kill.D Turn off all equipment when not in use.D Do not use worn, damaged, undersized, or poorly spliced cables.D Do not weld in locations near degreasing, cleaning, or spraying operations. The heat and rays of the arc can react with vapors to formhighly toxic and irritating gases.D Do not drape cables over your body.FUMES AND GASES can be hazardous.Welding produces fumes and gases. Breathingthese fumes and gases can be hazardous to yourhealth.D If inside, ventilate the area and/or use exhaust at the arc to removewelding fumes and gases.D If ventilation is poor, use an approved air-supplied respirator.D Read the Material Safety Data Sheets (MSDSs) and themanufacturer’s instructions for metals, consumables, coatings,cleaners, and degreasers.D Work in a confined space only if it is well ventilated, or whilewearing an air-supplied respirator. Always have a trained watchperson nearby. Welding fumes and gases can displace air andlower the oxygen level causing injury or death. Be sure the breathing air is safe.D Do not weld on coated metals, such as galvanized, lead, orcadmium plated steel, unless the coating is removed from the weldarea, the area is well ventilated, and if necessary, while wearing anair-supplied respirator. The coatings and any metals containingthese elements can give off toxic fumes if welded.OM-210 088 Page 1
ARC RAYS can burn eyes and skin.Arc rays from the welding process produce intensevisible and invisible (ultraviolet and infrared) raysthat can burn eyes and skin. Sparks fly off from theweld.D Wear a welding helmet fitted with a proper shade of filter to protectyour face and eyes when welding or watching (see ANSI Z49.1and Z87.1 listed in Safety Standards).D Wear approved safety glasses with side shields under yourhelmet.D Use protective screens or barriers to protect others from flash andglare; warn others not to watch the arc.D Wear protective clothing made from durable, flame-resistant material (leather and wool) and foot protection.BUILDUP OF GAS can injure or kill.D Shut off shielding gas supply when not in use.D Always ventilate confined spaces or useapproved air-supplied respirator.HOT PARTS can cause severe burns.D Do not touch hot parts bare handed.D Allow cooling period before working on gun ortorch.MAGNETIC FIELDS can affect pacemakers.WELDING can cause fire or explosion.Welding on closed containers, such as tanks,drums, or pipes, can cause them to blow up. Sparkscan fly off from the welding arc. The flying sparks, hotworkpiece, and hot equipment can cause fires andburns. Accidental contact of electrode to metal objects can causesparks, explosion, overheating, or fire. Check and be sure the area issafe before doing any welding.D Protect yourself and others from flying sparks and hot metal.D Do not weld where flying sparks can strike flammable material.D Remove all flammables within 35 ft (10.7 m) of the welding arc. Ifthis is not possible, tightly cover them with approved covers.D Be alert that welding sparks and hot materials from welding caneasily go through small cracks and openings to adjacent areas.D Watch for fire, and keep a fire extinguisher nearby.D Be aware that welding on a ceiling, floor, bulkhead, or partition cancause fire on the hidden side.D Do not weld on closed containers such as tanks, drums, or pipes,unless they are properly prepared according to AWS F4.1 (seeSafety Standards).D Connect work cable to the work as close to the welding area aspractical to prevent welding current from traveling long, possiblyunknown paths and causing electric shock and fire hazards.D Do not use welder to thaw frozen pipes.D Remove stick electrode from holder or cut off welding wire atcontact tip when not in use.D Wear oil-free protective garments such as leather gloves, heavyshirt, cuffless trousers, high shoes, and a cap.D Remove any combustibles, such as a butane lighter or matches,from your person before doing any welding.FLYING METAL can injure eyes.D Welding, chipping, wire brushing, and grindingcause sparks and flying metal. As welds cool,they can throw off slag.D Wear approved safety glasses with sideshields even under your welding helmet.OM-210 088 Page 2D Pacemaker wearers keep away.D Wearers should consult their doctor beforegoing near arc welding, gouging, or spotwelding operations.NOISE can damage hearing.Noise from some processes or equipment candamage hearing.D Wear approved ear protection if noise level ishigh.CYLINDERS can explode if damaged.Shielding gas cylinders contain gas under highpressure. If damaged, a cylinder can explode. Sincegas cylinders are normally part of the weldingprocess, be sure to treat them carefully.D Protect compressed gas cylinders from excessive heat, mechanical shocks, slag, open flames, sparks, and arcs.D Install cylinders in an upright position by securing to a stationarysupport or cylinder rack to prevent falling or tipping.D Keep cylinders away from any welding or other electrical circuits.D Never drape a welding torch over a gas cylinder.D Never allow a welding electrode to touch any cylinder.D Never weld on a pressurized cylinder – explosion will result.D Use only correct shielding gas cylinders, regulators, hoses, and fittings designed for the specific application; maintain them andassociated parts in good condition.D Turn face away from valve outlet when opening cylinder valve.D Keep protective cap in place over valve except when cylinder is inuse or connected for use.D Read and follow instructions on compressed gas cylinders,associated equipment, and CGA publication P-1 listed in SafetyStandards.
1-3. Additional Symbols For Installation, Operation, And MaintenanceFIRE OR EXPLOSION hazard.MOVING PARTS can cause injury.D Do not install or place unit on, over, or nearcombustible surfaces.D Do not install unit near flammables.D Do not overload building wiring – be sure power supply system isproperly sized, rated, and protected to handle this unit.D Keep away from moving parts such as fans.D Keep all doors, panels, covers, and guardsclosed and securely in place.FALLING UNIT can cause injury.H.F. RADIATION can cause interference.D Use lifting eye to lift unit only, NOT runninggear, gas cylinders, or any other accessories.D Use equipment of adequate capacity to lift andsupport unit.D If using lift forks to move unit, be sure forks arelong enough to extend beyond opposite side ofunit.DOVERUSE can cause OVERHEATINGDD Allow cooling period; follow rated duty cycle.D Reduce current or reduce duty cycle beforestarting to weld again.D Do not block or filter airflow to unit.DDD High-frequency (H.F.) can interfere with radionavigation, safety services, computers, andcommunications equipment.D Have only qualified persons familiar withelectronic equipment perform this installation.The user is responsible for having a qualified electrician promptly correct any interference problem resulting from the installation.If notified by the FCC about interference, stop using theequipment at once.Have the installation regularly checked and maintained.Keep high-frequency source doors and panels tightly shut, keepspark gaps at correct setting, and use grounding and shielding tominimize the possibility of interference.STATIC (ESD) can damage PC boards.D Put on grounded wrist strap BEFORE handlingboards or parts.D Use proper static-proof bags and boxes tostore, move, or ship PC boards.ARC WELDING can cause interference.MOVING PARTS can cause injury.D Keep away from moving parts.D Keep away from pinch points such as driverolls.DDWELDING WIRE can cause injury.D Do not press gun trigger until instructed to doso.D Do not point gun toward any part of the body,other people, or any metal when threadingwelding wire.DDD Electromagnetic energy can interfere withsensitive electronic equipment such ascomputers and computer-driven equipmentsuch as robots.D Be sure all equipment in the welding area iselectromagnetically compatible.To reduce possible interference, keep weld cables as short aspossible, close together, and down low, such as on the floor.Locate welding operation 100 meters from any sensitive electronic equipment.Be sure this welding machine is installed and groundedaccording to this manual.If interference still occurs, the user must take extra measuressuch as moving the welding machine, using shielded cables,using line filters, or shielding the work area.1-4. Principal Safety StandardsSafety in Welding and Cutting, ANSI Standard Z49.1, from AmericanWelding Society, 550 N.W. LeJeune Rd, Miami FL 33126Safety and Health Standards, OSHA 29 CFR 1910, from Superintendent of Documents, U.S. Government Printing Office, Washington, D.C.20402.Recommended Safe Practices for the Preparation for Welding and Cutting of Containers That Have Held Hazardous Substances, AmericanWelding Society Standard AWS F4.1, from American Welding Society,550 N.W. LeJeune Rd, Miami, FL 33126National Electrical Code, NFPA Standard 70, from National Fire Protection Association, Batterymarch Park, Quincy, MA 02269.Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1,from Compressed Gas Association, 1235 Jefferson Davis Highway,Suite 501, Arlington, VA 22202.Code for Safety in Welding and Cutting, CSA Standard W117.2, fromCanadian Standards Association, Standards Sales, 178 RexdaleBoulevard, Rexdale, Ontario, Canada M9W 1R3.Safe Practices For Occupation And Educational Eye And FaceProtection, ANSI Standard Z87.1, from American National StandardsInstitute, 1430 Broadway, New York, NY 10018.Cutting And Welding Processes, NFPA Standard 51B, from NationalFire Protection Association, Batterymarch Park, Quincy, MA 02269.OM-210 088 Page 3
1-5. EMF InformationConsiderations About Welding And The Effects Of Low FrequencyElectric And Magnetic FieldsWelding current, as it flows through welding cables, will cause electromagnetic fields. There has been and still is some concern about suchfields. However, after examining more than 500 studies spanning 17years of research, a special blue ribbon committee of the NationalResearch Council concluded that: “The body of evidence, in thecommittee’s judgment, has not demonstrated that exposure to powerfrequency electric and magnetic fields is a human-health hazard.”However, studies are still going forth and evidence continues to beexamined. Until the final conclusions of the research are reached, youmay wish to minimize your exposure to electromagnetic fields whenwelding or cutting.To reduce magnetic fields in the workplace, use the followingprocedures:OM-210 088 Page 41. Keep cables close together by twisting or taping them.2. Arrange cables to one side and away from the operator.3. Do not coil or drape cables around your body.4. Keep welding power source and cables as far away from operator as practical.5. Connect work clamp to workpiece as close to the weld as possible.About Pacemakers:Pacemaker wearers consult your doctor first. If cleared by your doctor,then following the above procedures is recommended.
SECTION 1 – CONSIGNES DE SECURITE – LIRE AVANTUTILISATIONsom nd fre 4/981-1. Signification des symbolesSignifie Mise en garde ! Soyez vigilant ! Cette procédureprésente des risques de danger ! Ceux-ci sont identifiéspar des symboles adjacents aux directives.Y Identifie un message de sécurité particulier. Signifie NOTA ; n’est pas relatif à la sécurité.Ce groupe de symboles signifie Mise en garde ! Soyez vigilant ! Il y a desrisques de danger reliés aux CHOCS ÉLECTRIQUES, aux PIÈCES ENMOUVEMENT et aux PIÈCES CHAUDES. Reportez-vous aux symboleset aux directives ci-dessous afin de connaître les mesures à prendre pouréviter tout danger.1-2. Dangers relatifs au soudage à l’arcY Les symboles présentés ci-après sont utilisés tout au long duprésent manuel pour attirer votre attention et identifier les risquesde danger. Lorsque vous voyez un symbole, soyez vigilant etsuivez les directives mentionnées afin d’éviter tout danger. Lesconsignes de sécurité présentées ci-après ne font que résumerl’information contenue dans les normes de sécurité énuméréesà la section 1-4. Veuillez lire et respecter toutes ces normes desécurité.Y L’installation, l’utilisation, l’entretien et les réparations ne doivent être confiés qu’à des personnes qualifiées.Y Au cours de l’utilisation, tenir toute personne à l’écart et plus particulièrement les enfants.D N’utiliser qu’un matériel en bon état. Réparer ou remplacer sur-lechamp les pièces endommagées. Entretenir l’appareil conformémentà ce manuel.D Porter un harnais de sécurité quand on travaille en hauteur.D Maintenir solidement en place tous les panneaux et capots.D Fixer le câble de retour de façon à obtenir un bon contact métal-métalavec la pièce à souder ou la table de travail, le plus près possible de lasoudure.DIsoler la pince de masse quand pas mis à la pièce pour éviter le contactavec tout objet métallique.UN CHOC ÉLECTRIQUE peut tuer.Un simple contact avec des pièces électriques peutprovoquer une électrocution ou des blessures graves.L’électrode et le circuit de soudage sont sous tensiondès que l’appareil est sur ON. Le circuit d’entrée et lescircuits internes de l’appareil sont également soustension à ce moment-là. En soudage semi-automatique ou automatique,le fil, le dévidoir, le logement des galets d’entraînement et les piècesmétalliques en contact avec le fil de soudage sont sous tension. Desmatériels mal installés ou mal mis à la terre présentent un danger.Il y a DU COURANT CONTINU IMPORTANT dans lesconvertisseurs après la suppression de l’alimentation électrique.D Arrêter les convertisseurs, débrancher le courant électrique, et décharger les condensateurs d’alimentation selon les instructionsindiquées dans la partie entretien avant de toucher les pièces.D Ne jamais toucher les pièces électriques sous tension.D Porter des gants et des vêtements de protection secs ne comportantpas de trous.D S’isoler de la pièce et de la terre au moyen de tapis ou d’autresmoyens isolants suffisamment grands pour empêcher le contact physique éventuel avec la pièce ou la terre.DDDNe pas se servir de source électrique àcourant électrique dans les zoneshumides, dans les endroits confinés ou là où on risque de tomber.Se servir d’une source électrique àcourant électrique UNIQUEMENT si leprocédé de soudage le demande.Si l’utilisation d’une source électrique àcourant électrique s’avère nécessaire, se servir de la fonction de télécommande si l’appareil en est équipé.D Couper l’alimentation ou arrêter le moteur avant de procéder à l’installation, à la réparation ou à l’entretien de l’appareil. Déverrouillerl’alimentation selon la norme OSHA 29 CFR 1910.147 (voir normes desécurité).D Installer et mettre à la terre correctement cet appareil conformément àson manuel d’utilisation et aux codes nationaux, provinciaux etmunicipaux.D Toujours vérifier la terre du cordon d’alimentation – Vérifier et s’assurer que le fil de terre du cordon d’alimentation est bien raccordé à laborne de terre du sectionneur ou que la fiche du cordon est raccordéeà une prise correctement mise à la terre.D En effectuant les raccordements d’entrée fixer d’abord le conducteurde mise à la terre approprié et contre-vérifier les connexions.D Vérifier fréquemment le cordon d’alimentation pour voir s’il n’est pasendommagé ou dénudé – remplacer le cordon immédiatement s’il estendommagé – un câble dénudé peut provoquer une électrocution.D Mettre l’appareil hors tension quand on ne l’utilise pas.D Ne pas utiliser des câbles usés, endommagés, de grosseur insuffisante ou mal épissés.D Ne pas enrouler les câbles autour du corps.D Si la pièce soudée doit être mise à la terre, le faire directement avec uncâble distinct.D Ne pas toucher l’électrode quand on est en contact avec la pièce, laterre ou une électrode provenant d’une autre machine.LES FUMÉES ET LES GAZ peuventêtre dangereux.Le soudage génère des fumées et des gaz. Leurinhalation peut être dangereux pour votre santé.DDDDDDD Eloigner votre tête des fumées. Ne pas respirerles fumées.A l’intérieur, ventiler la zone et/ou utiliser un échappement au niveaude l’arc pour l’évacuation des fumées et des gaz de soudage.Si la ventilation est insuffisante, utiliser un respirateur à alimentation d’air homologué.Lire les spécifications de sécurité des matériaux (MSDSs) et lesinstructions du fabricant concernant les métaux, les consommables, les revêtements, les nettoyants et les dégraisseurs.Travailler dans un espace fermé seulement s’il est bien ventilé ou enportant un respirateur à alimentation d’air. Demander toujours à unsurveillant dûment formé de se tenir à proximité. Des fumées et desgaz de soudage peuvent déplacer l’air et abaisser le niveau d’oxygène provoquant des blessures ou des accidents mortels. S’assurer que l’air de respiration ne présente aucun danger.Ne pas souder dans des endroits situés à proximité d’opérations dedégraissage, de nettoyage ou de pulvérisation. La chaleur et lesrayons de l’arc peuvent réagir en présence de vapeurs et former desgaz hautement toxiques et irritants.Ne pas souder des métaux munis d’un revêtement, tels que l’aciergalvanisé
Hobart is registered to the ISO 9001 Quality System Standard. From Hobart to You Hobart offers a Technical Manual which provides more detailed service and parts information for your unit. To obtain a Technical Manual, contact your local distributor. Your distributor can also supply you with Welding Process
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eco-t832-120/277-3* fdb-4827-120/277-3* motorola m3-rl-t8-1ll-a-120/277 m3-rn-t12-1ll-b-120/277 m3-rn-t8-1ll-a-120/277 all compatible ballasts may not be listed. *dimming control wires are not affected by em pack ebt ssb1-120/277-3/32 lh ssb1-120/277-3/40 lh ge g3-rl-t8-1ll-120/277 g3-rn-t8-10c-120/277 g3-rn-t8-1ll-120/
power. Discuss. (120-150 words) 4. Write a character sketch of The Tiger King or his Diwan. (120-150 words) 5. Dr. Sadao did justice to his profession and his country both. Discuss. (120-150 words) 6. Write a character sketch of Hana. (120-150 words) 7. Write a charcter sketch of Little Franz. (120-150 wor
Mobil DTE BB -7 to 90 AA 2 to 90 HH 2 to 90 Castrol Alpha ZN 220 -9 to 120 320 -9 to 120 460 -9 to 120 Shell Vitrea 220 -24 to 120 320 -18 to 120 460 -15 to 120 Esso Teresso 220 -18 to 120 320 -12 to 120 460 -9 to 120 Kluberoil GEM 1 220 -18 to 100 320 0 to 100 460 0 to 100 Synthetic
Word x SFI x Word y SFI y Word z SFI z strength 120.34 remember 120.33 worked 120.31 directly 120.30 merely 120.26 list 120.22 medical 120.19 size 120.18 club 120.17
Anatomi dan Fisiologi Sistem Muskuloskeletal 2.1.1. Sistem Otot (Muscular System) 2.1.1.1. Otot (Musculus) 2.1.1.1.1. Definisi Otot adalah sebuah jaringan yang terbentuk dari sekumpulan sel-sel yang berfungsi sebagai alat gerak. Jaringan otot sekitar 40% dari berat tubuh. Otot melakukan semua gerakan tubuh. Otot mempunyai sel-sel yang tipis dan panjang yang mengubah energi yang tersimpan dalam .
