Miller Electric Big 40 CAT instruction

4-9. Volt-Ampere Curve For CC/CV Models In AC TIG Mode

AC VOLTS

100

									Ranges
80								55 − 350
								35 − 205
60								25 − 105
									15 − 45
40
20
0
0	50	100	150	200	250	300	350	400	450	500

AC AMPERES

.AC output is only available on

units equipped with optional Polarity/AC switch.

The volt-ampere curve shows the minimum and maximum voltage and amperage output capabilities of the welding generator. Curves of all other settings fall between the curves shown.

207 045

Notes

OM-4406 Page 20

Return To Table Of Contents

Page 26

Image 26

Miller Electric Big 40 CAT manual Volt-Ampere Curve For CC/CV Models In AC TIG Mode

Contents

Description OM-4406Processes From Miller to You Table of Contents − Maintenance & Troubleshooting Deccon111/02 DirectivesStandards Sound Level Information Deccon1sound11/02 Symbol Usage Arc Welding Hazards Engine Hazards Compressed Air Hazards EMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings Radiation can cause interference UN Choc Électrique peut tuer Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation LES Fumées ET LES GAZ peuvent être dangereux DES 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’ouïe LA Chaleur DU Moteur peut pro- voquer un incendie ’EXPLOSION DE LA Batterie peutDES Organes Mobiles peuvent provoquer des blessures ’AIR Comprimé peut provoquer des blessures Principales normes de sécurité Information sur les champs électromagnétiques − Definitions + − Starting Instructions Falling equipment can cause Are possible hazards asCan cause severe burns. Do Serious injury and damage Return To Table Of Contents Std Manufacturer’s Rating Labels For CE Products− 50 h Std CC Models CC/CV Models Symbols And Definitions Dimensions, Weights, And Operating Angles − SpecificationsWeld, Power, And Engine Specifications Volt-Ampere Curves For CC Models TIG Mode Stick ModeMIG Mode Volt-Ampere Curves For CC/CV Models Fuel Consumption Duty Cycle And Overheating 12 kVA/kW Single-Phase AC Output No Weld Load AC Generator Power CurveOptional Three-Phase Generator Curves 15 kVA/kW Three-Phase AC Output No Weld Load Volt-Ampere Curve For CC/CV Models In AC TIG Mode Location Grounding − InstallationInstalling Welding Generator See Sections 5-2And Airflow Clearance Using Lifting Eye Mounting Surface Mounting Welding GeneratorSupporting The Unit To Bolt Unit In Place Stop engine and let cool Installing Exhaust PipeTools Needed 1/2 Point exhaust pipe in desired di Read and follow all instruc Activating The Dry Charge Battery If ApplicableDo not overfill battery cells Charger Connect Negative − Cable Last Connecting The BatteryReinstall cover after connecting battery Coolant Recovery Tank Engine Prestart Checks Connecting To Weld Output Terminals Selecting Weld Cable Sizes Connecting To Remote 14 Receptacle RC14 On CC/CV Models Socket − Operating Welding Generator − CC Models Front Panel Controls For CC Models See Section Engine Starting Controls Engine Indicator LightsDo not switch under load To Start Do not use ether Example Remote Amperage Control On CC Models OptionalWeld Control/Arc Condition Information Label Set weld controls as shown to Return To Table Of Contents − Operating Welding Generator − CC/CV Models Front Panel Controls For CC/CV Models See Section Engine Oil Pressure Light Use switch to select weld amperage rangeVoltage/Amperage Adjust Switch And Remote 14 Receptacle Process/Contactor Switch On CC/CV Models Process/Contactor Switch Settings Example Combination Remote Amperage Control TIG Remote Voltage/Amperage Control On CC/CV Models OptionalExample Combination Remote Amperage Control Stick At least once a month, run en − Operating Auxiliary EquipmentVolt And 240 Volt Receptacles Open, contact Factory Autho Close panel opening if no connections are made to generator Three-Phase Power ConnectionRear Of Panel Circuit Breaker CB2 Circuit Breaker CB3 Optional Generator Power Receptacles240 V 15 a AC South African Receptacle RC1 − Maintenance & Troubleshooting Maintenance Label Every 50 h Routine MaintenanceEvery 8 h Every 100 h Every 2000 h ServiceEvery 1000 h Caterpillar Customer Assistance To clean air filter Servicing Air CleanerBy the warranty Do not clean housing with air hose Tools Needed 3/8 Inspecting And Cleaning Optional Spark Arrestor MufflerStop engine and let cool. Reinstall cleanout plug Weld/Power Speed Adjustment Adjusting Engine SpeedIdle Speed Adjustment Engine Speed No Load Servicing Fuel And Lubrication Systems Overload Protection Diagnostic Checks While Running Diagnosing Causes Of Engine Fault ShutdownsPre-Start Diagnostic Checks Start Engine With No Load Applied Troubleshooting Welding − CC Models Welding − CC/CV Models Engine Standard Generator PowerOptional Three-Phase Generator Power CC/CV Models Temperature is too high see Sections 5-7and Wiring harness and componentsShutdown switch is released Out Air in fuel system. See engine manual − Electrical Diagrams Circuit Diagram For CC Welding Generator 215 296-B Circuit Diagram For CC/CV Welding Generator 215 297-B Welding Generator − RUN-IN ProcedureWetstacking Stop engine Do not touch hot exhaust Run-In Procedure Using Load BankProcedure at less than From flammables Do not Perform From flammables Run-In Procedure Using Resistance GridBank/grid Do not perform run-in Selecting Equipment − Generator Power GuidelinesHas this symbol Grounding Generator To Truck Or Trailer Frame Earth ground if supplying Grounding When Supplying Building SystemsHow Much Power Does Equipment Require? Use ground device as stated Electrical codes Industrial 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 Watts Approximate Power Requirements For Contractor Equipment Contractor Rating Starting Watts Running Watts Single-Phase Induction Motor Starting Requirements Power Required To Start MotorHow Much Power Can Generator Supply? KVA/HP x HP x 1000 = Starting Amperage Typical Connections To Supply Standby Power Selecting Extension Cord Use Shortest Cord Possible Current Load Watts Amperes 113 108 100 CC only 119 110 109 111 -4 or − Parts List117 116 103 102 115 FIG 114 105 104 101 120 51 52 85 Fig Dia Part Description Quantity Dia Part Description Quantity Mkgs 095 Control Box Assembly − CC Models Control Box Assembly − CC/CV Models Control Box Assembly − CC/CV Models -1Item Panel, Front w/Components − CC Models MS1 Panel, Front w/Components − CC/CV Models Panel, Front w/Components − CC/CV Models -1Item PC6 192 PLG6 Hardware is common Not available unless listed 34 36 27 26 Main Rectifier Assembly -1Item Main Rectifier Assembly Page Your distributor also gives Support Your distributor and/or equipment manufacturer’s Miller Electric Mfg. CoFor assistance in filing or settling claims, contact Transportation Department