Miller Electric Big Blue 400 KX manual Symbol Usage, Arc Welding Hazards

Page 7

SECTION 1 − SAFETY PRECAUTIONS − READ BEFORE USING

rom _nd_3/05

YWarning: Protect yourself and others from injury — read and follow these precautions.

1-1. Symbol Usage

Means Warning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols.

Y Marks a special safety message.

This group of symbols means Warning! Watch Out! possible

ELECTRIC SHOCK, MOVING PARTS, and HOT PARTS hazards.

 

. Means “Note”; not safety related.

Consult symbols and related instructions below for necessary actions

to avoid the hazards.

1-2. Arc Welding Hazards

YThe symbols shown below are used throughout this manual to call attention to and identify possible hazards. When you see the symbol, watch out, and follow the related instructions to avoid the hazard. The safety information given below is only a summary of the more complete safety information found in the Safety Stan- dards listed in Section 1-7. Read and follow all Safety Standards.

YOnly qualified persons should install, operate, maintain, and re- pair this unit.

YDuring operation, keep everybody, especially children, away.

ELECTRIC SHOCK can kill.

Touching live electrical parts can cause fatal shocks or severe burns. The electrode and work circuit is electrically live whenever the output is on. The input power circuit and

machine internal circuits are also live when power is on. In semiautomatic or automatic wire welding, the wire, wire reel, drive roll housing, and all metal parts touching the welding wire are electrically live. Incorrectly installed or improperly grounded equipment is a hazard.

DDo not touch live electrical parts.

DWear dry, hole-free insulating gloves and body protection.

DInsulate yourself from work and ground using dry insulating mats or covers big enough to prevent any physical contact with the work or ground.

DDo not use AC output in damp areas, if movement is confined, or if there is a danger of falling.

DUse AC output ONLY if required for the welding process.

DIf AC output is required, use remote output control if present on unit.

DAdditional safety precautions are required when any of the following electri- cally hazardous conditions are present: in damp locations or while wearing wet clothing; on metal structures such as floors, gratings, or scaffolds; when in cramped positions such as sitting, kneeling, or lying; or when there is a high risk of unavoidable or accidental contact with the workpiece or ground. For these conditions, use the following equipment in order present- ed: 1) a semiautomatic DC constant voltage (wire) welder, 2) a DC manual (stick) welder, or 3) an AC welder with reduced open-circuit voltage. In most situations, use of a DC, constant voltage wire welder is recommended. And, do not work alone!

DDisconnect input power or stop engine before installing or servicing this equipment. Lockout/tagout input power according to OSHA 29 CFR 1910.147 (see Safety Standards).

DProperly install and ground this equipment according to its Owner’s Manual and national, state, and local codes.

DAlways verify the supply ground — check and be sure that input power cord ground wire is properly connected to ground terminal in disconnect box or that cord plug is connected to a properly grounded receptacle outlet.

DWhen making input connections, attach proper grounding conductor first − double-check connections.

DFrequently inspect input power cord for damage or bare wiring — replace cord immediately if damaged — bare wiring can kill.

DTurn off all equipment when not in use.

DDo not use worn, damaged, undersized, or poorly spliced cables.

DDo not drape cables over your body.

DIf earth grounding of the workpiece is required, ground it directly with a sep- arate cable.

DDo not touch electrode if you are in contact with the work, ground, or anoth- er electrode from a different machine.

DUse only well-maintained equipment. Repair or replace damaged parts at once. Maintain unit according to manual.

DDo not touch electrode holders connected to two welding machines at the same time since double open-circuit voltage will be present.

DWear a safety harness if working above floor level.

DKeep all panels and covers securely in place.

DClamp work cable with good metal-to-metal contact to workpiece or work- table as near the weld as practical.

DInsulate work clamp when not connected to workpiece to prevent contact with any metal object.

DDo not connect more than one electrode or work cable to any single weld output terminal.

SIGNIFICANT DC VOLTAGE exists in inverters after stop- ping engine.

DStop engine on inverter and discharge input capacitors according to instructions in Maintenance Section before touching any parts.

FUMES AND GASES can be hazardous.

Welding produces fumes and gases. Breathing these fumes and gases can be hazardous to your health.

DKeep your head out of the fumes. Do not breathe the fumes.

DIf inside, ventilate the area and/or use local forced ventilation at the arc to remove welding fumes and gases.

DIf ventilation is poor, wear an approved air-supplied respirator.

DRead and understand the Material Safety Data Sheets (MSDSs) and the manufacturer’s instructions for metals, consumables, coatings, cleaners, and degreasers.

DWork in a confined space only if it is well ventilated, or while wearing an air- supplied respirator. Always have a trained watchperson nearby. Welding fumes and gases can displace air and lower the oxygen level causing injury or death. Be sure the breathing air is safe.

DDo not weld in locations near degreasing, cleaning, or spraying operations. The heat and rays of the arc can react with vapors to form highly toxic and irritating gases.

DDo not weld on coated metals, such as galvanized, lead, or cadmium plated steel, unless the coating is removed from the weld area, the area is well ventilated, and while wearing an air-supplied respirator. The coatings and any metals containing these elements can give off toxic fumes if welded.

BUILDUP OF GAS can injure or kill.

D Shut off shielding gas supply when not in use.

DAlways ventilate confined spaces or use approved air-supplied respirator.

ARC RAYS can burn eyes and skin.

Arc rays from the welding process produce intense visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin. Sparks fly off from the weld.

DWear an approved welding helmet fitted with a proper shade of filter lenses to protect your face and eyes from arc rays and sparks when welding or watching (see ANSI Z49.1 and Z87.1 listed in Safety Standards).

DWear approved safety glasses with side shields under your helmet.

DUse protective screens or barriers to protect others from flash, glare, and sparks; warn others not to watch the arc.

DWear protective clothing made from durable, flame-resistant material (leather, heavy cotton, or wool) and foot protection.

OM-4423 Page 1

Image 7
Contents File Engine Drive OM-4423 215 178NProcesses DescriptionFrom Miller to You Table of Contents − Maintenance & Troubleshooting 8-1. Routine Maintenance Standards DirectivesDecrot6/05 Decrotsound1/05 Sound Level InformationArc Welding Hazards Symbol UsageEngine Hazards Compressed Air Hazards Radiation can cause interference Principal Safety StandardsCalifornia Proposition 65 Warnings EMF InformationLES Fumées ET LES GAZ peuvent être dangereux Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation UN Choc Électrique peut tuerLE Bruit peut affecter l’ouïe LE Soudage peut provoquer un in- cendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES Pièces Chaudes peuvent provoquer des brûlures gravesLES Étincelles Volantes risquent de provoquer des blessures ’AIR Comprimé peut provoquer des blessures’EMPLOI Excessif peut LE Surchauffement peut endom- mager le moteur électriqueBoulevard, Rexdale, Ontario, Canada M9W 1R3 téléphone LE Soudage À L’ARC risque de provoquer des interférencesPour les moteurs à essence Pour les moteurs diesel− 50 h Std − DefinitionsStd Manufacturer’s Rating Label Symbols And Definitions Weld, Power, And Engine Specifications − SpecificationsDimensions, Weights, And Operating Angles Volt-Ampere Curves Stick ModeMIG Mode TIG ModeDuty Cycle And Overheating Curve shows typical fuel use under weld or power loadsExceeding duty cycle can damage unit and void warranty Fuel ConsumptionAc power curve shows the gen- erator power in amperes AC Generator Power CurveInstalling Welding Generator − InstallationMounting Welding Generator Tools Needed 1/2 Installing Exhaust PipeStop engine and let cool Connect Negative − Cable Last Activating The Dry Charge Battery If ApplicableConnecting The Battery Do not overfill battery cellsOil Coolant Recovery TankEngine Prestart Checks Fuel Do not use gasoline. Gasoline will damage engineStop engine Connecting To Weld Output TerminalsStick and TIG Welding MIG and Fcaw WeldingStop engine before Selecting Weld Cable Sizes150 ft 200 ft 250 ft 350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 mSocket Connecting To Remote 14 Receptacle RC14Stop Front Panel Controls See SectionDescription Of Front Panel Controls See Section Process/Contactor Switch Settings Process/Contactor Switch On CC/CV ModelsLift-Arc t TIG Lift-ArcStart ProcedureLift-Arc Start Method Touch Do not Strike Like a MatchRemote Voltage/Amperage Control Volt Receptacles − Operating Auxiliary EquipmentRoutine Maintenance − Maintenance & TroubleshootingMaintenance Label Do not clean housing with air hose Servicing Air CleanerBy the warranty To clean air filterStop engine and let cool. Reinstall cleanout plug Inspecting And Cleaning Spark Arrestor MufflerServicing Engine Cooling System Maximum Adjusting Engine Speed On Standard ModelsTo replace primary canister fuel filter Servicing Fuel And Lubrication SystemsStop engine and let cool After servicing, start engine To change oil and filterOverload Protection Press button to reset breakerReplace Damaged Brushes Checking Generator BrushesHelp 20 Display Voltmeter/Ammeter Help DisplaysHelp 25 Display Standard Generator Power TroubleshootingWelding Engine Check for obstructed throttle solenoid Circuit Diagram For Welding Generator − Electrical Diagrams221 499-B Wetstacking − RUN-IN ProcedureWelding Generator From flammables Do not Perform Run-In Procedure Using Load BankProcedure at less than Stop engine Do not touch hot exhaustDo not perform run-in Run-In Procedure Using Resistance GridBank/grid From flammablesSelecting Equipment − Generator Power GuidelinesGrounding Generator To Truck Or Trailer Frame Amperes x Volts = Watts Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Earth ground if supplyingFarm/Home Equipment Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Industrial Motors Rating Starting Watts Running WattsContractor Rating Starting Watts Running Watts Approximate Power Requirements For Contractor EquipmentKVA/HP x HP x 1000 = Starting Amperage Power Required To Start MotorHow Much Power Can Generator Supply? Single-Phase Induction Motor Starting RequirementsTypical Connections To Supply Standby Power Current Load Watts Amperes Selecting Extension Cord Use Shortest Cord Possible103 − −5 104 − −3 96− −2 102 101 100 − Parts List3031 5756 71− −4Dia Part Description Quantity Mkgs Dia Part Description Quantity 213600 Panel, Front w/Components -1Item Panel, Front w/ComponentsFUEL/HM Control Panel Generator -1Item GeneratorRectifier Assembly Wiring Harnesses Your distributor also gives ServiceSupport Your distributor and/or equipment manufacturer’s To locate a Distributor or Service Agency visitMiller Electric Mfg. Co For assistance in filing or settling claims, contact