Bobcat 250 - MillerWelds
OM-4419211 392U2011 02 28ProcessesStick (SMAW) WeldingMIG (GMAW) WeldingFlux Cored (FCAW) WeldingNon-Critical TIG (GTAW)WeldingDescriptionEngine Driven Welding GeneratorBobcat 250 File: Engine DriveVisit our website atwww.MillerWelds.com
From Miller to YouThank you and congratulations on choosing Miller. Now you can getthe job done and get it done right. We know you don’t have time to doit any other way.That’s why when Niels Miller first started building arc welders in 1929,he made sure his products offered long-lasting value and superiorquality. Like you, his customers couldn’t afford anything less. Millerproducts had to be more than the best they could be. They had to be thebest you could buy.Today, the people that build and sell Miller products continue thetradition. They’re just as committed to providing equipment and servicethat meets the high standards of quality and value established in 1929.This Owner’s Manual is designed to help you get the most out of yourMiller products. Please take time to read the Safety precautions. Theywill help you protect yourself against potential hazards on the worksite.We’ve made installation and operation quickand easy. With Miller you can count on yearsof reliable service with proper maintenance.And if for some reason the unit needs repair,there’s a Troubleshooting section that willhelp you figure out what the problem is. TheMiller is the first welding parts list will then help you to decide theequipment manufacturer in exact part you may need to fix the problem.the U.S.A. to be registered tothe ISO 9001 Quality System Warranty and service information for yourStandard.particular model are also provided.Miller Electric manufactures a full lineof welders and welding related equipment.For information on other quality Millerproducts, contact your local Miller distributor to receive the latest fullline catalog or individual specification sheets. To locate your nearestdistributor or service agency call 1-800-4-A-Miller, or visit us atwww.MillerWelds.com on the web.Mil Thank 2009 09Working as hard as you do every power source fromMiller is backed by the mosthassle-free warranty in thebusiness.
TABLE OF CONTENTSSECTION 1 SAFETY PRECAUTIONS READ BEFORE USING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1. Symbol Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2. Arc Welding Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3. Engine Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4. Hydraulic Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5. Compressed Air Hazards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6. Additional Symbols For Installation, Operation, And Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7. California Proposition 65 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8. Principal Safety Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9. EMF Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 2 CONSIGNES DE SÉCURITÉ LIRE AVANT UTILISATION . . . . . . . . . . . . . . . . . . . . . . . . . .2-1. Signification des symboles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2. Dangers relatifs au soudage à l’arc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3. Dangers existant en relation avec le moteur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4. Dangers liés à l’hydraulique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5. Dangers liés à l’air comprimé . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6. Dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance . . . . .2-7. Proposition californienne 65 Avertissements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8. Principales normes de sécurité . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9. Informations relatives aux CEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 3 DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 4 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1. Weld, Power, and Carbureted Engine Specifications (Subaru EH-65, Kohler CH-23) . . . . . . . . . . . .4-2. Weld, Power, And EFI Engine Specifications (Kohler ECH-730) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3. Dimensions, Weights, And Operating Angles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4. Dimensions For Units With Optional Running Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1113445677888101112131415151617171718194-5. Duty Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6. Fuel Consumption (Subaru-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7. Fuel Consumption (Kohler-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8. Volt-Ampere Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9. Generator Power Curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 5 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1. Serial Number And Rating Label Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2. Installing Welding Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3. Grounding Generator To Truck Or Trailer Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4. Installing Exhaust Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5. Connecting Or Replacing The Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6. Electronic Fuel Injection (EFI) System And Battery Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7. Engine Prestart Checks (Subaru-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8. Engine Prestart Checks (Kohler-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9. Weld Output Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10. Connecting To Weld Output Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-11. Selecting Weld Cable Sizes* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 6 OPERATING THE WELDING GENERATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1. Front Panel Controls (See Section 6-2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2. Description Of Controls (See Section 6-1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3. Cold Weather Engine Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4. Typical Stick Welding Connections And Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5. Typical MIG Welding Connections And Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6. Typical MIG Connections And Settings Using Weld Control And Spoolgun . . . . . . . . . . . . . . . . . . . . .192020212223232324242525262728282930303131323335i
TABLE OF CONTENTSSECTION 7 OPERATING AUXILIARY EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1. Generator Power Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2. Simultaneous Weld And Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3. Wiring Optional 240 Volt Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 8 MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1. Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-2. Maintenance Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-3. Servicing Optional Spark Arrestor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-4. Servicing Air Cleaner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-5. Overload Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-6. Electronic Fuel Injection (EFI) System And Servicing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-7. Changing Engine Oil, Oil Filter, and Fuel Filter (Subaru-Powered Units) . . . . . . . . . . . . . . . . . . . . . . .8-8. Changing Engine Oil, Oil Filter, And Fuel Filter (Kohler-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . .8-9. Adjusting Engine Speed (Kohler Carbureted Units [CH-23]) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-10. Adjusting Engine Speed (Kohler EFI Units [ECH-730]) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-11. Adjusting Engine Speed (Subaru-Powered Units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 9 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-1. Welding Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-2. Generator Power Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-3. Engine Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 10 PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-1. Recommended Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 11 ELECTRICAL DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 12 GENERATOR POWER GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 13 STICK WELDING (SMAW) GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SECTION 14 MIG WELDING (GMAW) GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .COMPLETE PARTS LIST - 1424344454647474748494950525966
SECTION 1 SAFETY PRECAUTIONS READ BEFORE USINGrom 2010 03Protect yourself and others from injury — read, follow, and save these important safety precautions and operating instructions.1-1. Symbol UsageDANGER! Indicates a hazardous situation which, ifnot avoided, will result in death or serious injury. Thepossible hazards are shown in the adjoining symbolsor explained in the text.Indicates a hazardous situation which, if not avoided,could result in death or serious injury. The possiblehazards are shown in the adjoining symbols or explained in the text.NOTICE Indicates statements not related to personal injury. Indicates special instructions.This group of symbols means Warning! Watch Out! ELECTRICSHOCK, MOVING PARTS, and HOT PARTS hazards. Consult symbols and related instructions below for necessary actions to avoid thehazards.1-2. Arc Welding HazardsThe symbols shown below are used throughout this manualto call attention to and identify possible hazards. When yousee the symbol, watch out, and follow the related instructionsto avoid the hazard. The safety information given below isonly a summary of the more complete safety informationfound in the Safety Standards listed in Section 1-8. Read andfollow all Safety Standards.Only qualified persons should install, operate, maintain, andrepair this unit.During operation, keep everybody, especially children, away.ELECTRIC SHOCK can kill.Touching live electrical parts can cause fatal shocks orsevere burns. The electrode and work circuit iselectrically live whenever the output is on. The inputpower circuit and machine internal circuits are also livewhen power is on. In semiautomatic or automatic wirewelding, the wire, wire reel, drive roll housing, and allmetal parts touching the welding wire are electricallylive. Incorrectly installed or improperly groundedequipment is a hazard. Do not touch live electrical parts. Wear dry, hole-free insulating gloves and body protection. Insulate yourself from work and ground using dry insulating matsor covers big enough to prevent any physical contact with the workor ground. Do not use AC output in damp areas, if movement is confined, or ifthere is a danger of falling. Use AC output ONLY if required for the welding process. If AC output is required, use remote output control if present onunit. Additional safety precautions are required when any of the following electrically hazardous conditions are present: in damplocations or while wearing wet clothing; on metal structures suchas floors, gratings, or scaffolds; when in cramped positions suchas sitting, kneeling, or lying; or when there is a high risk of unavoidable or accidental contact with the workpiece or ground. For theseconditions, use the following equipment in order presented: 1) asemiautomatic 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 welderis recommended. And, do not work alone! Disconnect input power or stop engine before installing orservicing this equipment. Lockout/tagout input power according toOSHA 29 CFR 1910.147 (see Safety Standards). Properly install and ground this equipment according to itsOwner’s Manual and national, state, and local codes. 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. When making input connections, attach proper grounding conductor first double-check connections. Keep cords dry, free of oil and grease, and protected from hot metaland sparks. Frequently inspect input power cord for damage or bare wiring —replace cord immediately if damaged — bare wiring can kill. Turn off all equipment when not in use. Do not use worn, damaged, undersized, or poorly spliced cables. Do not drape cables over your body. If earth grounding of the workpiece is required, ground it directlywith a separate cable. Do not touch electrode if you are in contact with the work, ground,or another electrode from a different machine. Use only well-maintained equipment. Repair or replace damagedparts at once. Maintain unit according to manual. Do not touch electrode holders connected to two welding machines at the same time since double open-circuit voltage will bepresent. Wear a safety harness if working above floor level. Keep all panels and covers securely in place. Clamp work cable with good metal-to-metal contact to workpieceor worktable as near the weld as practical. Insulate work clamp when not connected to workpiece to preventcontact with any metal object. Do not connect more than one electrode or work cable to anysingle weld output terminal.SIGNIFICANT DC VOLTAGE exists in inverter powersources AFTER stopping engine. Stop engine on inverter and discharge input capacitors accordingto instructions in Maintenance Section before touching any parts.HOT PARTS can burn. Do not touch hot parts bare handed. Allow cooling period before working on equipment. To handle hot parts, use proper tools and/or wear heavy, insulated welding gloves and clothing to prevent burns.FLYING METAL or DIRT can injure eyes. Welding, chipping, wire brushing, and grindingcause sparks and flying metal. As welds cool,they can throw off slag. Wear approved safety glasses with side shields even under yourwelding helmet.OM-4419 Page 1
FUMES AND GASES can be hazardous.Welding produces fumes and gases. Breathing thesefumes and gases can be hazardous to your health. Keep your head out of the fumes. Do not breathe the fumes. If inside, ventilate the area and/or use local forced ventilation at thearc to remove welding fumes and gases. If ventilation is poor, wear an approved air-supplied respirator. Read and understand the Material Safety Data Sheets (MSDSs)and the manufacturer’s instructions for metals, consumables,coatings, cleaners, and degreasers. 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. 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. 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 while wearing an air-suppliedrespirator. The coatings and any metals containing these elementscan give off toxic fumes if welded. Do not weld on closed containers such as tanks, drums, or pipes,unless they are properly prepared according to AWS F4.1 (se
semiautomatic DC constant voltage (wire) welder, 2) a DC manual (stick) welder, or 3) an AC welder with reduced open-circuit volt-age. In most situations, use of a DC, constant voltage wire welder is recommended. And, do not work alone! Disconnect input power or stop engine before installing or servicing this equipment.
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S70 BOBCAT SKID STEER LOADER Skid-Steer Loaders Bobcat Suggested List Prices All Prices in U.S. Dollars 11-2010 Price Book PART NUMBER SKID STEER LOADER DESCRIPTION SLP IN US M0041 S70 BOBCAT SKID-STEER LOADER. 17,791.00 PART NUMBER FACTORY INSTALLED OPTIONS DESCRIPTION SLP I
