Hobart Welding Products OM-945 194 047U manual Adjusting Engine Speed Kohler-Powered Units

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9-7. Adjusting Engine Speed (Kohler-Powered Units)

2200 ± 50 rpm

3700 ± 50 rpm

4	2

Top View

After tuning engine, check engine speeds with a tachometer (see table). If necessary, adjust speeds as follows:

Start engine and run until warm.

Remove wrapper to access speed adjustments.

Idle Speed Adjustment

Move Engine Control switch to Run/Idle position.

1Throttle Solenoid

2Mounting Screws

3Idle Speed Screw

Loosen mounting screws. Adjust solenoid position so engine runs at idle speed. If necessary, back out idle speed screw so solenoid can be moved to correct position. Tight- en mounting screws. Be sure sole- noid linkage works smoothly.

Turn idle speed screw for fine adjustments.

Weld/Power Speed Adjustment

Move Engine Control switch to Run position.

4Weld/Power Speed Adjustment Nut

5Lock Nut

Loosen lock nut. Turn adjustment nut until engine runs at weld/power speed. Tighten lock nut.

YStop engine. Reinstall wrapper.

Tools Needed:

1/4, 3/8 in

802 339-B / 801 209-A

OM-945 Page 34

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Contents Processes DescriptionFrom Hobart to You Table of Contents Table of Contents Symbol Usage Arc Welding HazardsEngine Hazards Compressed Air Hazards EMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings Radiation can cause interferenceUN Choc Électrique peut tuer Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation LES Fumées ET LES GAZ peuvent être dangereuxDES Pièces Chaudes peuvent provoquer des brûlures graves LE Soudage peut provoquer un in- cendie ou une explosionDES Particules Volantes peuvent blesser les yeux LE Bruit peut affecter l’ouïeLA Chaleur DU Moteur peut pro- voquer un incendie ’EXPLOSION DE LA Batterie peutDES Organes Mobiles peuvent provoquer des blessures ’AIR Comprimé peut provoquer des blessuresPrincipales normes de sécurité Information sur les champs électromagnétiquesWeld, Power, and Engine Specifications − SpecificationsSymbol Definitions − DefinitionsDo not move or operate unit where it could tip Dimensions, Weights, and Operating AnglesGenerator Power Curve Fuel Consumption All Models Duty CycleMaterial Thickness Reference Chart Volt-Ampere Curves− Installation Installing Welding GeneratorFuel Engine Prestart Checks Onan-Powered UnitsEngine Prestart Checks Kohler-Powered Units OilRead and follow all instruc Activating The Dry Charge Battery If ApplicableDo not overfill battery cells Charger+ − Connecting the BatteryInstalling Exhaust Pipe Connect negative − cable last45 m 60 m 70 m 90 m 105 m 120 m Connecting to Weld Output TerminalsSelecting Weld Cable Sizes Put terminalsAmperage Selection Table For Stick Smaw Electrodes − Operating the Welding Generator Front Panel ControlsCeptacles, use − Operating Auxiliary EquipmentStandard Receptacles Optional Generator Power Receptacles Wiring Optional 240 Volt Plug− Maintenance ONAN-POWERED Units Every 1000 h Maintenance Label Onan-Powered UnitsEvery 500 h Servicing Air Cleaner Onan-Powered Units Stop engineStop engine. Disconnect nega- tive − battery cable Overload Protection Onan-Powered UnitsServicing Optional Spark Arrestor Onan-Powered Units Stop engine and let coolFull Tools Needed Weld/Power Speed Adjustment Adjusting Engine Speed Onan-Powered UnitsIdle Speed Adjustment Every 25 h Routine Maintenance Kohler-Powered UnitsEvery 20 h Replace unreadable labels Maintenance Label Kohler-Powered Units Servicing Air Cleaner Kohler-Powered Units Overload Protection Kohler-Powered Units Servicing Optional Spark Arrestor Kohler-Powered Units802 339-B / S-0842 Adjusting Engine Speed Kohler-Powered Units Stop engine. Reinstall wrapperGenerator Power − TroubleshootingTroubleshooting WeldingEngine − Electrical Diagram Grounding Generator To Truck Or Trailer Frame − Generator Power GuidelinesSelecting Equipment Earth ground if supplying Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Amperes x Volts = WattsIndustrial Motors Rating Starting Watts Running Watts Approximate Power Requirements For Industrial MotorsApproximate Power Requirements For Farm/Home Equipment Farm/Home Equipment Rating Starting Watts Running WattsApproximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running WattsSingle-Phase Induction Motor Starting Requirements Power Required To Start MotorHow Much Power Can Generator Supply? KVA/HP x HP x 1000 = Starting AmperageTypical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible Current Load Watts Amperes− Stick Welding Smaw Guidelines Stick Welding ProcedureWeld current starts when electrode touches work- piece Striking an Arc − Tapping Technique Electrode and Amperage Selection ChartStriking an Arc − Scratch Start Technique Positioning Electrode Holder Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Conditions That Affect Weld Bead Shape Electrode Movement During WeldingTee Joint Butt JointsLap Joint Weld Test Troubleshooting − PorosityTroubleshooting − Excessive Spatter Possible Causes Corrective ActionsTroubleshooting − Excessive Penetration Troubleshooting − Incomplete FusionTroubleshooting − Lack Of Penetration Troubleshooting − Distortion Troubleshooting − Burn-ThroughTroubleshooting − Waviness Of Bead OM-945 − Parts List Main Assembly Onan Engine ShownMain Assembly Panel, Front w/Components Panel, Front w/Components -1Item Generator -1Item Service SupportContact your Distributor for Hobart Welding Products