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

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8-7. Adjusting Engine Speed (Onan-Powered Units)

2200 ± 100 rpm

3700 ± 50 rpm

1

3

2

4

65

Tools Needed:

10 mm

8 mm

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.

4Jam Nut

5Lock Nut

6Weld/Power Speed Adjustment Screw

Loosen jam nut and lock nut. Turn adjustment screw until engine runs at weld/power speed. Tighten jam nut, and then tighten lock nut.

YStop engine. Reinstall wrapper.

802 353-B / 802 457

OM-945 Page 27

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Contents Description ProcessesFrom Hobart to You Table of Contents Table of Contents Arc 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 graves’AIR Comprimé peut provoquer des blessures ’EXPLOSION DE LA Batterie peutDES Organes Mobiles peuvent provoquer des blessures LA Chaleur DU Moteur peut pro- voquer un incendieInformation sur les champs électromagnétiques Principales normes de sécurité− Definitions − SpecificationsSymbol Definitions Weld, Power, and Engine SpecificationsGenerator Power Curve Dimensions, Weights, and Operating AnglesDo not move or operate unit where it could tip Duty Cycle Fuel Consumption All ModelsVolt-Ampere Curves Material Thickness Reference ChartInstalling Welding Generator − InstallationOil Engine Prestart Checks Onan-Powered UnitsEngine Prestart Checks Kohler-Powered Units FuelCharger Activating The Dry Charge Battery If ApplicableDo not overfill battery cells Read and follow all instrucConnect negative − cable last Connecting the BatteryInstalling Exhaust Pipe + −Put terminals Connecting to Weld Output TerminalsSelecting Weld Cable Sizes 45 m 60 m 70 m 90 m 105 m 120 mAmperage Selection Table For Stick Smaw Electrodes Front Panel Controls − Operating the Welding GeneratorStandard Receptacles − Operating Auxiliary EquipmentCeptacles, use Wiring Optional 240 Volt Plug Optional Generator Power Receptacles− Maintenance ONAN-POWERED Units Every 500 h Maintenance Label Onan-Powered UnitsEvery 1000 h Stop engine Servicing Air Cleaner Onan-Powered UnitsStop engine and let cool Overload Protection Onan-Powered UnitsServicing Optional Spark Arrestor Onan-Powered Units Stop engine. Disconnect nega- tive − battery cableFull Tools Needed Idle Speed Adjustment Adjusting Engine Speed Onan-Powered UnitsWeld/Power Speed Adjustment Every 20 h Routine Maintenance Kohler-Powered UnitsEvery 25 h Replace unreadable labels Maintenance Label Kohler-Powered Units Servicing Air Cleaner Kohler-Powered Units Servicing Optional Spark Arrestor Kohler-Powered Units Overload Protection Kohler-Powered Units802 339-B / S-0842 Stop engine. Reinstall wrapper Adjusting Engine Speed Kohler-Powered UnitsWelding − TroubleshootingTroubleshooting Generator PowerEngine − Electrical Diagram Selecting 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 PossibleWeld current starts when electrode touches work- piece Stick Welding Procedure− Stick Welding Smaw Guidelines Striking an Arc − Scratch Start Technique Electrode and Amperage Selection ChartStriking an Arc − Tapping Technique Good Weld Bead Characteristics Poor Weld Bead CharacteristicsPositioning Electrode Holder Electrode Movement During Welding Conditions That Affect Weld Bead ShapeLap Joint Butt JointsTee Joint Possible Causes Corrective Actions Troubleshooting − PorosityTroubleshooting − Excessive Spatter Weld TestTroubleshooting − Lack Of Penetration Troubleshooting − Incomplete FusionTroubleshooting − Excessive Penetration Troubleshooting − Waviness Of Bead Troubleshooting − Burn-ThroughTroubleshooting − Distortion OM-945 Main Assembly Onan Engine Shown − Parts ListMain Assembly Panel, Front w/Components Panel, Front w/Components -1Item Generator -1Item Support ServiceHobart Welding Products Contact your Distributor for