Hobart Welding Products OM-487 manual Making Engine Speed Adjustments, Adjusting Idle Speed

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C. Making Engine Speed Adjustments

2450 ± 100 rpm

Idle

3750 Max

Weld/Power

Be sure throttle link is parallel with throttle lever.

67

1

2

4

5

Do not twist

3 solenoid boot while adjusting engine speed.

Tools Needed:

3/8, 7/16 in 10, 14 mm

.Before adjusting engine speed, verify throttle solenoid is installed properly (see Section B on previous page).

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

Start engine and run until warm. Turn A/V control to max.

Adjusting Idle Speed

Turn Engine Control switch to Run/Idle position.

1Throttle Solenoid

2Idle Speed Jam Nut

3Plunger

4Throttle Link

5Throttle Lever

Loosen jam nut. While holding throttle link with a 3/8 in wrench, turn plunger clock- wise to increase idle speed or counter- clockwise to decrease idle speed.

.After adjusting idle speed, verify the throttle link is parallel with the throttle lever. If necessary, loosen the idle speed jam nut and reposition the throttle link.

.Do not twist solenoid boot while ad- justing engine speed.

Tighten jam nut.

Adjusting Weld/Power Speed

Start engine and run until warm. Turn A/V control to max.

6Weld Speed Jam Nut

7Adjustment Screw

Turn Engine Control switch to Run posi- tion. Loosen nut and turn screw counter- clockwise to increase speed. Turn screw clockwise to decrease speed. Tighten nut.

Ref. ST-801 961 / ST-801 963

OM-487 Page 31

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Contents Description OM-487Processes From Hobart to You Table of Contents Page ARC Rays can burn eyes and skin Symbol UsageArc Welding Hazards Electric Shock can killEngine Hazards Engine Heat can cause fire Battery Explosion can BlindMoving Parts can cause injury Engine Exhaust Gases can killARC Welding can cause interference Principal Safety StandardsEMF Information Radiation can cause interferenceLES Fumé ES ET LES GAZ peuvent ê tre dangereux Signification des symbolesConsignes DE SÉ Curité Lire Avant Utilisation UN Choc É Lectrique peut tuerLE Bruit peut affecter l’ouïe LE Soudage peut provoquer un in- cendie ou une explosionDES Particules Volantes peuvent blesser les yeux DES PIÈ CES Chaudes peuvent provoquer des brû lures gravesLA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessures’EXPLOSION DE LA Batterie peut LA Chaleur DU Moteur peut pro- voquer un incendieConsignes relatives aux stimulateurs cardiaques Principales normes de sé curitéInformation sur les champs é lectromagné tiques LE Soudage À L’ARC risque de provoquer des interfé rencesDefinitions SpecificationsSymbol Definitions Weld, Power, And Engine SpecificationsFuel Consumption Dimensions, Weights, And Operating AnglesDimensions 100% Duty Cycle at 290 Amperes DC Auxiliary Power CurveExceeding duty cycle can damage unit and void warranty Duty CycleVolt-Ampere Curves CC/AC ModeCC/DC Mode CV/DC ModeDo not lift unit from end Airflow Clearance InstallationInstalling Welding Generator Installing Exhaust PipeOil 13 mm Full Diesel Coolant Recovery TankEngine Prestart Checks Fuel Do not use gasoline. Gasoline will damage engineConnect negative Connecting The BatteryConnecting To Weld Output Terminals Adding Coolant To RadiatorRemote 14 Receptacle Information Selecting Weld Cable SizesTo stiffen weld puddle Adjusting MIG Weld Puddle ConsistencyStop engine To wet out weld puddleFront Panel Controls Do not switch under loadPlace switch in Run position to operate most Gmaw equipment Operating Welding Generator1nected to the remote 14 recep- tacle is running Remote Amperage/Voltage ControlOperating Auxiliary Equipment Auxiliary Power Receptacles And Circuit BreakersAuxiliary power decreases as weld current increases Open, contact Factory Authorized Service AgentAustralian Receptacle Option Optional Auxiliary Power ReceptaclesGfci Receptacle Option Receptacle Wiring Optional 240 Volt PlugMaintenance Label Maintenance and Troubleshooting75 h Routine Maintenance20 h 50 h800 h 200 h400 h 500 hServicing Air Cleaner Stop engine and let cool Servicing Engine Cooling SystemServicing Optional Spark Arrestor Fuel Lines Replace fuel lines if cracked or worn Servicing Engine Fuel And Lubrication SystemsChecking Fuel Solenoid Adjusting Engine SpeedAdjusting Fuel Solenoid Position Stop screw is factory-set and should not be adjustedSolenoid in relaxed Adjusting Throttle SolenoidChecking Throttle Solenoid Check for non-bindingAdjusting Weld/Power Speed Making Engine Speed AdjustmentsAdjusting Idle Speed Trouble Remedy TroubleshootingOverload Protection WeldingSee engine manual Low weld output Check control settingsCheck and clean air cleaner as necessary see Section Check engine speed, and adjust if necessary see SectionEngine Auxiliary PowerTrouble Remedy Circuit Diagram For Welding Generator Electrical Diagram201 Wetstacking RUN-IN ProcedureLoad Bank Run-In Procedure Using Load BankFrom flammables Run-In Procedure Using Resistance GridDo not touch hot exhaust Bank/gridGrounding Generator To Truck Or Trailer Frame Auxiliary Power GuidelinesHas this symbol Selecting EquipmentUse ground device as stated in electrical codes 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 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 Possible80- -2 Parts List56- -3 Main Assembly Dia Part Description 124 Hardware is common Not available unless listed Panel, Front w/ComponentsPanel, Front w/Components -1 Item Generator -1 Item Support ServiceCall Contact your Distributor forHobart Welding Products