Hobart Welding Products 3025 manual Description Of Controls See Section

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5-2. Description Of Controls (See Section 5-1)

.The fan motor is thermostatically controlled and only runs when cooling is needed.

Engine Lights

1 Battery Charging Light

Light goes on if engine alternator is not charg- ing battery. Engine continues to run.

YStop engine and fix trouble if Battery Charging light goes on.

2 Engine Temperature Light

Light goes on and engine stops if engine tem- perature is too high.

YStop engine and fix trouble if Engine Temperature light goes on.

3 Engine Oil Pressure Light

Light goes on and engine stops if oil pressure is too low. Light goes on momentarily during start-up but goes out when engine reaches normal oil pressure.

YStop engine and fix trouble if Engine Oil Pressure light stays on after start- up.

4 Glow Plug Light

Light goes on when glow plug is energized and warming up. Glow plug warms in about six seconds and engine can be started (see start- ing instructions following).

YDo not use glow plug longer than 20 seconds.

Engine Gauges

5Engine Hour Meter

6Fuel Gauge

Weld Controls

7 Dig/Inductance Control

Control adjusts Dig when Stick mode is se- lected on mode switch. When control is set to- ward minimum, short-circuit amperage at low arc voltage is the same as normal welding amperage.

When set toward maximum, short-circuit am-

perage is increased at low arc voltage to as- sist with arc starts and help prevent the elec- trode from sticking while welding (see volt-am- pere curves in Section 3-4).

Select setting best suited for application.

Control adjusts inductance when MIG or V-Sense Feeder position is selected on the mode switch. Inductance determines the “wetness” of the weld puddle. When set to- ward maximum, “wetness” (puddle fluidity) in- creases.

When Pulsed MIG or one of the TIG modes is selected, this control is not functional.

8 Voltmeter

Meter displays weld voltage and help mes- sages (see Sections 5-3 and 7-9).

9 Ammeter

Meter displays weld amperage and help mes- sages (see Sections 5-3 and 7-9).

10V/A (Voltage/Amperage) Adjustment Control

11Mode Switch

The Mode switch setting determines both the process and output On/Off control (see Sec- tion 5-4). Source of control (panel or remote) for the amount of output is selected by the V/A Control switch.

For Air Carbon Arc (CAC-A) cutting and goug- ing, place switch in Stick position. For best re- sults, place Inductance/Dig control in the max- imum position.

12 V/A (Voltage/Amperage) Control Switch

For front panel control, place switch in Panel position and use the V/A Adjustment control.

For remote control, make connections to Re- mote 14 receptacle, and place switch in Re- mote position. In most modes, remote control is a percent of V/A Adjustment control setting (value selected on V/A Adjustment control is maximum available on remote). In the MIG mode, remote control provides full range of unit output regardless of V/A Adjust control setting.

Engine Starting Controls

13 Glow Plug Switch

Use switch to energize glow plug for cold weather starting. Glow plug warms in about six seconds and engine can be started (see starting instructions following).

14 Engine Control Switch

Use switch to start engine, select speed, and stop engine. In Run/Idle position, engine runs at idle speed at no load, and weld/power speed under load. In Run position, engine runs at weld/power speed.

.Place switch in Run position to operate most GMAW equipment.

To Start:

Above 325 F: turn Engine Control switch to Start. Release switch when engine starts and Engine Oil Pressure light goes out.

.If engine does not start, let engine come to a complete stop before attempting re- start.

Below 325 F: turn engine control switch to Run/Idle position. Push Glow Plug switch up and hold about six seconds. Turn Engine Con- trol switch to Start. Release switch when en- gine starts and Engine Oil Pressure light goes out. Do not crank engine while engine is turn- ing.

.If engine does not start, let engine come to a complete stop before attempting re- start.

To Stop: turn Engine Control switch to Off position.

.Push engine stop lever to stop engine if Engine Control switch does not work (see item 15).

15 Engine Stop Lever

Use lever to stop engine if Engine Control switch does not work.

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Contents Description OM-492Processes 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 SpecificationsOverheating Dimensions, Weights, and Operating AnglesDimensions Duty Cycle And OverheatingVolt-Ampere Curves CC ModeCV Mode Movement Airflow Clearance Do not lift unit from end InstallationInstalling Welding Generator Fuel ConsumptionFuel Do not use gasoline. Gasoline will damage engine Keep radiator and air intake clean and free of dirtEngine Prestart Checks Full 13 mm DieselAdding Coolant To Radiator Connecting The BatteryConnecting To Weld Output Terminals Installing Exhaust Pipe10 100% Duty Cycle Selecting Weld Cable SizesRemote 14 Receptacle RC5 Information 100 ft 30 m Or LessOM-492 Controls See Section Operating Welding GeneratorDescription Of Controls See Section Meter Functions Mode Switch SettingsMode Meter Reading At Idle Meter Reading While Welding Mode Switch Setting Process Output On/Off ControlTouch Seconds Do not Strike Like a Match Lift-Arc TIG ProcedureWeld Total 120 Auxiliary Power Receptacles And Circuit BreakersThree-Phase 240 Operating Auxiliary Equipment120V Plug Wired for 240 V, 2-Wire Load Load. See circuit diagramPlug Wired for 120/240 Wire LoadMaintenance and Troubleshooting 2000 h 500 h800 h 1000 hMaintenance Label Servicing Optional Spark Arrestor Servicing Air CleanerTo Clean air filter Do not clean housing with air hoseServicing Engine Lubrication And Fuel Systems Servicing Engine Cooling System Weld Speed Jam Nut Adjustment Screw Adjusting Engine SpeedAdjusting Idle Speed Adjusting Weld/Power SpeedOverload Protection Voltmeter/Ammeter Help Displays Trouble Remedy TroubleshootingWelding Necessary parts Auxiliary PowerNo power output Reset circuit breakers see Section Engine CT1 Reset circuit breaker CB9 see SectionOM-492 Circuit Diagram For Welding Generator Electrical Diagrams200 Wetstacking RUN-IN ProcedureWelding Generator Weld Cables Run-In Procedure Using Load BankLoad Bank From flammables Run-In Procedure Using Resistance GridDo not touch hot exhaust Bank/gridGrounding Generator To Truck Or Trailer Frame Auxiliary Power GuidelinesSelecting Equipment 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 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 Possible109 108 107 106 Parts List112 104 103 102 101 100 1054746 8988 Item Dia Part Mkgs Description Quantity PLG11 Front Panel Front Panel -5, Item Inverter Assembly Inverter Assembly -5, Item Generator Support ServiceCall Contact your Distributor forHobart Welding Products
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