Miller Electric Bobcat 225 manual Engine Prestart Checks Kohler-Powered Units

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. A complete Parts List is available at www.MillerWelds.com

5-3. Engine Prestart Checks (Kohler-Powered Units)

Full

Gasoline

Check all fluids daily. Engine must be cold and on a level surface. Unit is shipped with 10W30 engine oil.

. Follow run-in procedure in en- gine manual.

NOTICE − This unit has a low oil

Full pressure shutdown switch. Howev- er, some conditions may cause en- gine damage before the engine shuts down. Check oil level often and do not use the oil pressure shutdown system to monitor oil level.

Fuel

To help prime the fuel system at ini- tial start-up, fill tank with fresh fuel (see maintenance label for specifi- cations). Always leave filler neck empty to allow room for expansion. Check fuel level on a cold engine before use each day.

Oil

. Do not exceed the ”Full” mark on the oil level dipstick. The fuel pump may operate errati- cally if crankcase is overfilled.

After fueling, check oil with unit on level surface. If oil is not up to full mark on dipstick, add oil (see main- tenance label).

. To improve cold weather starting:

Keep battery in good condition.

Store battery in warm area.

Use correct grade oil for cold weather.

803 847-C / 217 015-A

OM-4434 Page 19

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Contents File Engine Drive OM-4434From Miller to You Table of Contents 11-1 10-110-2 10-3HOT Parts can cause severe burns Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion Fumes and Gases can be hazardousBuildup of GAS can injure or kill ARC Rays can burn eyes and skinCompressed Air Hazards Engine HazardsFalling Unit can cause injury Welding Wire can cause injuryHOT Parts can cause burns and injury Fire or Explosion hazardRadiation can cause interference Principal Safety StandardsCalifornia Proposition 65 Warnings EMF InformationIndique des instructions spécifiques Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation UN Choc Électrique peut tuerLE Soudage peut provoquer un in cendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures gravesLES Fumées ET LES GAZ peuvent être dangereux DES Organes Mobiles peuvent pro voquer des blessures LE Bruit peut affecter l’ouïe’EXPLOSION DE LA Batterie peu Risque D’INCENDIE OU D’EXPLO- Sion LA Chaleur DU Moteur peut pro- voquer un incendie’AIR Comprimé peut provoquer des blessures ’EMPLOI Excessif peut LE Surchauffement peut endom- mager le moteur électriqueDES Organes Mobiles peuvent provoquer des blessures LES Fils DE Soudage peuvent provoquer des blessuresInformation EMF Proposition californienne 65 AvertissementsPrincipales normes de sécurité − Definitions − SpecificationsSymbol Definitions Weld, Power, and Engine SpecificationsDimensions Dimensions, Weights, and Operating AnglesDimensions For Units With Optional Running Gear Robin-PoweredUnit 560 lb 254 kgFuel Consumption Kohler-Powered Units Fuel Consumption Robin-Powered UnitsVolt-Ampere Curves For CC/AC ModeFor CC/DC Mode For CV/DC Mode Duty Cycle Generator Power CurveDo not use flexible mounts Grounding − InstallationInstalling Welding Generator MountingOil Engine Prestart Checks Robin-Powered UnitsOil Check Engine Prestart Checks Kohler-Powered Units Replacing The Battery Installing Exhaust PipeConnecting Or Replacing the Battery Connecting The Battery Connect negative − cable lastWork Weld Output Terminal Connecting to Weld Output TerminalsTools Needed Correct Installation Stop engine350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 m Selecting Weld Cable Sizes150 ft 200 ft 250 ft OM-4434 − Operating the Welding Generator Engine Control SwitchPlace switch in Run position to operate most MIG equipment Coarse Range SwitchFrequently Loaded Cold Weather Engine OperationInfrequently LoadedElectrode Typical Stick Welding Connections And Control SettingsBe sure to use the correct size weld cables see Section Typical MIG Welding Connections And SettingsSolid Wire Applications Fine Control, Weld Process switch Settings Self-Shielded Flux Core Wire ApplicationsWork Typical Settings ForSet wire feed speed between 240-270 ipm OM-4434 MaterialStandard Receptacles − Operating Auxiliary EquipmentBreaker trips Optional Generator Power ReceptaclesReceptacle Simultaneous Weld And PowerWiring Optional 240 Volt Plug Current Available in Amperes 240Maintenance Label Robin-Powered Units − Maintenance ROBIN-POWERED Units200 Routine Maintenance Robin-Powered UnitsStop engine before maintaining 100Stop engine and let cool Servicing Air Cleaner Robin-Powered UnitsServicing Optional Spark Arrestor Robin-Powered Units Oil Fill Close valve and valve capBefore adding oil Running engineWeld/Power Speed Adjustment Adjusting Engine Speed Robin-Powered UnitsIdle Speed Adjustment Turn idle speed screw for fine adjustmentsStop engine. Disconnect negative − battery cable Overload Protection Robin-Powered UnitsMaintenance Label Kohler-Powered Units − Maintenance − KOHLER-POWERED UnitsHours Nl Weld Cables ~ Slip Rings Nl Brushes OM-4434 Routine Maintenance Kohler-Powered UnitsServicing Air Cleaner Kohler−Powered Units Full Before adding oil Running engine Stop engine and let cool Oil Drain Valve2 ID x 7 in Hose Oil Filter Turn idle speed screw for fine ad- justments Adjusting Engine Speed Kohler-Powered UnitsIf a fuse opens, it usually indi Overload Protection Kohler-Powered UnitsServicing Optional Spark Arrestor Kohler-Powered Units Trouble Remedy − TroubleshootingWelding Troubleshooting Generator Power TroubleshootingEngine Troubleshooting Recommended Spare Parts − Parts ListControl switch S2, and throttle solenoid TS1 Recommended Spare PartsCircuit Diagram For Welding Generator − Electrical Diagrams228 461-A Grounding Generator To Truck Or Trailer Frame − Generator Power GuidelinesSelecting Equipment How Much Power Does Equipment Require? Grounding When Supplying Building SystemsFarm/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 / Volts = Starting Amperage Power Required To Start MotorHow Much Power Can Generator Supply? Single-Phase Induction Motor Starting RequirementsTypical Connections To Supply Standby Power Cord Lengths for 240 Volt Loads Selecting Extension Cord Use Shortest Cord PossibleCord Lengths for 120 Volt Loads Current Load Watts Amperes− Stick Welding Smaw Guidelines Stick Welding ProcedureStriking an Arc − Tapping Technique Electrode and Amperage Selection ChartStriking an Arc − Scratch Start Technique 10-30 9090 End View of Work Angle Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Positioning Electrode HolderElectrode Movement During Welding Conditions That Affect Weld Bead Shape16 in 30 1.6 mm Tack Welds Butt JointsLap Joint Tee JointPossible Causes Corrective Actions Troubleshooting − PorosityTroubleshooting − Excessive Spatter Weld TestTroubleshooting − Excessive Penetration Troubleshooting − Incomplete FusionTroubleshooting − Lack Of Penetration Troubleshooting − Distortion Troubleshooting − Burn-ThroughTroubleshooting − Waviness Of Bead Holding And Positioning Welding Gun − MIG Welding Gmaw GuidelinesSlow Normal Fast Push Perpendicular DragShort Normal Long Gun Movement During Welding 15-9 Troubleshooting − Excessive Penetration 15-7 Troubleshooting − Excessive Spatter15-8 Troubleshooting − Porosity Improper joint preparation Lack Of Penetration − shallowFusion between weld metal Base metal to move Unsteady hand Support hand on solid surface or use two handsFillet Common MIG Shielding GasesApplication Page Support ServiceYour distributor also gives 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