Hobart Welding Products OM-945 manual Troubleshooting, Welding, Generator Power, Trouble Remedy

Page 39

SECTION 10 − TROUBLESHOOTING

10-1. Troubleshooting

A. Welding

Trouble

Remedy

 

 

No weld output.

Check control settings.

 

 

 

Check weld connections.

 

 

 

Reset circuit breaker CB4 (see Section 8-4or 9-4).

 

 

 

Unit overloaded. Stop unit and reduce load. Restart unit to reset generator protection circuit and resume

 

operation.

 

 

 

Be sure all equipment is disconnected from receptacles when starting unit.

 

 

 

Check plug PLG6 connection.

 

 

 

Have Factory Authorized Service Agent check brushes, slip rings, integrated rectifier SR2 and field

 

control board PC1.

 

 

Low weld output.

Reset circuit breaker CB4 (see Section 8-4or 9-4).

 

 

 

Check control settings.

 

 

 

Check engine speed, and adjust if necessary (see Section 8-7or 9-7).

 

 

 

Service air cleaner according to engine manual.

 

 

 

Have Factory Authorized Service Agent check brushes and slip rings and field control board PC1.

 

 

High weld output.

Check control settings.

 

 

 

Check engine speed, and adjust if necessary (see Section 8-7or 9-7).

 

 

Erratic weld output.

Check control settings.

 

 

 

Tighten and clean connections to electrode and workpiece.

 

 

 

Use dry, properly-stored electrodes for Stick and TIG welding.

 

 

 

Remove excessive coils from weld cables.

 

 

 

Clean and tighten connections both inside and outside welding generator.

 

 

 

Check engine speed, and adjust if necessary (see Section 8-7or 9-7).

 

 

 

Have Factory Authorized Service Agent check brushes and slip rings.

 

 

B. Generator Power

Trouble

Remedy

 

 

No output at generator power ac

Reset supplementary protectors (see Section 7-1or 7-2).

receptacles.

 

Press optional GFCI receptacle Reset button (see Section 7-2).

 

 

 

 

Reset circuit breaker CB4 (see Section 8-4or 9-4).

 

 

 

Unit overloaded. Stop unit and reduce load. Restart unit to reset generator protection circuit and resume

 

operation.

 

 

 

Check plug PLG6 connection.

 

 

 

Have Factory Authorized Service Agent check brushes, slip rings, integrated rectifier SR2 and field

 

control board PC1.

 

 

High power output at generator power

Check engine speed, and adjust if necessary (see Section 8-7or 9-7).

ac receptacles.

 

 

 

Low power output at generator power ac

Reset circuit breaker CB4 (see Section 8-4or 9-4).

receptacles.

 

 

 

 

Check engine speed, and adjust if necessary (see Section 8-7or 9-7).

 

 

OM-945 Page 35

Page 38 Page 40
Image 39
Page 38 Page 40
Contents
Description ProcessesFrom Hobart to You Table of Contents Options and Accessories Warranty 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 gravesLES Étincelles Volantes risquent de provoquer des blessures ’AIR Comprimé peut provoquer des blessures’EMPLOI Excessif peut LE Surchauffement peut endom- mager le moteur électriqueEn ce qui concerne les stimulateurs cardiaques LE Soudage À L’ARC risque de provoquer des interférencesPour les moteurs à essence Pour les moteurs diesel− Definitions − SpecificationsSymbol Definitions Weld, Power, and Engine SpecificationsGenerator Power Curve Dimensions, Weights, and Operating AnglesDuty Cycle Fuel Consumption All ModelsVolt-Ampere Curves Material Thickness Reference ChartMounting − InstallationInstalling Welding Generator Vehicle frame. Always connect a ground wireOil Engine Prestart Checks Robin-Powered UnitsEngine Prestart Checks Kohler-Powered Units FuelConnect negative − Activating The Dry Charge Battery If ApplicableConnecting the Battery Do not overfill battery cellsWeld Output Terminals Installing Exhaust PipeSelecting Weld Cable Sizes Connecting To Weld Output TerminalsFront Panel Controls − Operating the Welding GeneratorLoaded Cold Weather Engine OperationAmperage Selection Table For Stick Smaw Electrodes InfrequentlyStandard Receptacles − Operating Auxiliary EquipmentGfci Receptacle Option Optional Generator Power ReceptaclesReceptacle Current Available in Amperes 240Routine Maintenance Robin-Powered Units − Maintenance ROBIN-POWERED UnitsMaintenance Label Robin-Powered Units Servicing Air Cleaner Robin−Powered Units Stop engine and let cool Overload Protection Robin-Powered UnitsServicing Optional Spark Arrestor Robin-Powered Units Stop engine. Disconnect nega- tive − battery cableFull Tools Needed Adjusting Engine Speed Robin-Powered Units Idle Speed AdjustmentWeld/Power Speed Adjustment Routine Maintenance Kohler-Powered Units − Maintenance − KOHLER-POWERED UnitsMaintenance Label Kohler-Powered Units Servicing Air Cleaner Kohler−Powered Units Servicing Optional Spark Arrestor Kohler-Powered Units Overload Protection Kohler-Powered Units802 339-G / S-0842 Stop engine. Reinstall wrapper Adjusting Engine Speed Kohler-Powered UnitsWelding − TroubleshootingTroubleshooting Generator PowerEngine Work like a Pro − Electrical Diagram − Generator Power Guidelines Selecting EquipmentGrounding 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 PossibleStick 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 Electrode Movement During Welding Conditions That Affect Weld Bead ShapeButt Joints Lap JointTee Joint Possible Causes Corrective Actions Troubleshooting − PorosityTroubleshooting − Excessive Spatter Weld TestTroubleshooting − Incomplete Fusion Troubleshooting − Lack Of PenetrationTroubleshooting − Excessive Penetration Troubleshooting − Burn-Through Troubleshooting − Waviness Of BeadTroubleshooting − Distortion Main Assembly Robin Engine Shown − Parts ListMain Assembly Panel, Front w/Components Panel, Front w/Components -1Item Generator -1Item Service SupportAssistance Hobart Welding Products Contact your Distributor for
Related manuals
Manual 68 pages 57.29 Kb
Top Page Image Contents