Hobart Welding Products OM-945 Overload Protection Robin-Powered Units, Stop engine and let cool

Page 30

8-4. Overload Protection (Robin-Powered Units)

Tools Needed:

3/8 in

1

2

YStop engine. Disconnect nega- tive (−) battery cable.

.If the unit is extremely over- loaded, weld and generator pow- er will stop. Turn unit off and re- start to reset the generator protection circuit and restore weld and generator power output.

If the rated output of the unit is ex- ceeded, engine speed may vary rapidly until the weld or generator power load is reduced.

1Circuit Breaker CB4 (See Parts List)

CB4 protects the generator excitation circuit. If CB4 opens, there is no/low weld and generator power output.

Press button to reset breaker.

2 Fuse F6 (See Parts List)

F6 protects the engine wiring system. If F6 opens, the engine does not crank. If F6 opens while the engine is running, the engine stops.

Replace fuse if open. Reinstall cover before operating.

.If a fuse or circuit breaker opens,

it usually indicates a more serious problem exists. Contact a Factory Authorized Service Agent.

802 342 / Ref. 802 353-G

8-5. Servicing Optional Spark Arrestor (Robin-Powered Units)

Y Stop engine and let cool.

1 Spark Arrestor Screen

Clean and inspect screen. Replace spark arrestor if screen wires are broken or missing.

1

Tools Needed:

1/4 in

Ref. 801 682-A / Ref. 802 353-A

OM-945 Page 26

Image 30 Contents
Processes DescriptionFrom Hobart to You Table of Contents Options and Accessories Warranty 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’ouïeLE Surchauffement peut endom- mager le moteur électrique ’AIR Comprimé peut provoquer des blessures’EMPLOI Excessif peut LES Étincelles Volantes risquent de provoquer des blessuresPour les moteurs diesel LE Soudage À L’ARC risque de provoquer des interférencesPour les moteurs à essence En ce qui concerne les stimulateurs cardiaquesWeld, Power, and Engine Specifications − SpecificationsSymbol Definitions − DefinitionsDimensions, Weights, and Operating Angles Generator Power CurveFuel Consumption All Models Duty CycleMaterial Thickness Reference Chart Volt-Ampere CurvesVehicle frame. Always connect a ground wire − InstallationInstalling Welding Generator MountingFuel Engine Prestart Checks Robin-Powered UnitsEngine Prestart Checks Kohler-Powered Units OilDo not overfill battery cells Activating The Dry Charge Battery If ApplicableConnecting the Battery Connect negative −Installing Exhaust Pipe Weld Output TerminalsConnecting To Weld Output Terminals Selecting Weld Cable Sizes− Operating the Welding Generator Front Panel ControlsInfrequently Cold Weather Engine OperationAmperage Selection Table For Stick Smaw Electrodes Loaded− Operating Auxiliary Equipment Standard ReceptaclesOptional Generator Power Receptacles Gfci Receptacle Option Current Available in Amperes 240 Receptacle− Maintenance ROBIN-POWERED Units Routine Maintenance Robin-Powered UnitsMaintenance Label Robin-Powered Units Servicing Air Cleaner Robin−Powered Units Stop engine. Disconnect nega- tive − battery cable Overload Protection Robin-Powered UnitsServicing Optional Spark Arrestor Robin-Powered Units Stop engine and let coolFull Tools Needed Adjusting Engine Speed Robin-Powered Units Idle Speed AdjustmentWeld/Power Speed Adjustment − Maintenance − KOHLER-POWERED Units Routine Maintenance Kohler-Powered UnitsMaintenance Label Kohler-Powered Units Servicing Air Cleaner Kohler−Powered Units Overload Protection Kohler-Powered Units Servicing Optional Spark Arrestor Kohler-Powered Units802 339-G / S-0842 Adjusting Engine Speed Kohler-Powered Units Stop engine. Reinstall wrapperGenerator Power − TroubleshootingTroubleshooting WeldingEngine Work like a Pro − Electrical Diagram − Generator Power Guidelines Selecting EquipmentGrounding Generator To Truck Or Trailer Frame 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 AmperesStick Welding Procedure Weld current starts when electrode touches work- piece− Stick Welding Smaw Guidelines Electrode and Amperage Selection Chart Striking an Arc − Scratch Start TechniqueStriking an Arc − Tapping Technique Poor Weld Bead Characteristics Good Weld Bead CharacteristicsPositioning Electrode Holder Conditions That Affect Weld Bead Shape Electrode Movement During WeldingButt Joints Lap JointTee Joint Weld Test Troubleshooting − PorosityTroubleshooting − Excessive Spatter Possible Causes Corrective ActionsTroubleshooting − Incomplete Fusion Troubleshooting − Lack Of PenetrationTroubleshooting − Excessive Penetration Troubleshooting − Burn-Through Troubleshooting − Waviness Of BeadTroubleshooting − Distortion − Parts List Main Assembly Robin Engine ShownMain Assembly Panel, Front w/Components Panel, Front w/Components -1Item Generator -1Item Service SupportAssistance Contact your Distributor for Hobart Welding Products
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