Miller Electric MOG-300 User Manual

ProcessesDescriptionTIG (GTAW) WeldingStick (SMAW) WeldingMultiple Operator Resistance Grids(MOG), Racks, And Remote ControlsOM-808 081 904FJanuary 19

OM-808 Page 6Le rayonnement de l’arc du procédé de soudagegénère des rayons visibles et invisibles intenses(ultraviolets et infrarouges) susceptibles

OM-808 Page 71-3. Dangers supplémentaires en relation avec l’installation, le fonctionnementet la maintenanceRisque D’INCENDIE OUD’EXPLOSION.D Ne pas

OM-808 Page 81-4. Principales normes de sécuritéSafety in Welding and Cutting, norme ANSI Z49.1, de l’American Wel-ding Society, 550 N.W. Lejeune Rd,

OM-808 Page 9SECTION 2 – SPECIFICATIONS2-1. Resistance GridSpecification DescriptionType Of Output Coarse: 50 Ampere Steps; Fine: 5 Ampere Steps; Opti

OM-808 Page 10SECTION 3 – INSTALLATION3-1. Typical Multiple Operator System Component RelationshipsWARNINGELECTRIC SHOCK can kill; TWO TIMES NORMAL OP

OM-808 Page 113-2. Selecting A Location And Moving Resistance Grid Or Multi-Grid RackRef. ST-124 643-A / Ref. ST-151 556 / ST-161 154-AY Turn Off weld

OM-808 Page 123-3. Weld Input/Output Cables For Resistance Grid (Dual Model Shown)Y Turn Off welding powersource, and disconnect in-put power before m

OM-808 Page 133-4. Weld Input/Output Cables For Multi-Grid RackS-0799-A1 Weld Input Cable2 Work Cable3 Weld Output CableIf necessary, use Section 3-7

OM-808 Page 143-5. Female Camlok Connector Assemblysb6.6* – ST-159 0281 Weld Input CableStrip insulation as shown.2 Copper Strip (Two Included)3 Conne

OM-808 Page 153-7. Weld Cable Size*Total Cable (Copper) Length In Weld Circuit Not Exceeding100 ft (30 m) Or Less150 ft(45 m)200 ft(60 m)250 ft(70 m)3

Miller Electric manufactures a full lineof welders and welding related equipment.For information on other quality Millerproducts, contact your local M

OM-808 Page 16SECTION 4 – OPERATIONWARNINGELECTRIC SHOCK can kill.• Keep all panels and covers securely in place.• Do not touch electrode holders of o

OM-808 Page 174-3. Work Clamp1 Work ClampConnect work clamp to a clean,paint-free location on workpiece, asclose to weld area as possible.Use wire bru

OM-808 Page 184-5. Amperage ControlsCAUTIONARCING can damage switch.• Do not change position of any Amperage control or switch while welding or under

OM-808 Page 194-6. Optional Remote Grid Amperage ControlST-080 370-A / Ref. ST-122 903-DRemote amperage control onlyworks when Fine Amperage controlan

OM-808 Page 204-8. Sequence Of Shielded Metal Arc Welding (SMAW)Begin Weldingssb7.1 9/92Install &ConnectEquipmentSelectElectrodePut OnPersonal Saf

OM-808 Page 215-2. Overload ProtectionRef. ST-124 643-A / Ref. ST-161 156-AFuse link F1, or fuse links F1 and F2for dual models, protect the gridfrom

OM-808 Page 22SECTION 6 – ELECTRICAL DIAGRAMSSA-044 882-AFigure 6-1. Circuit Diagram For 300 Ampere ModelSA-096 447-AFigure 6-2. Circuit Diagram For 3

OM-808 Page 23SA-044 884-AFigure 6-3. Circuit Diagram For 400 Ampere ModelSA-096 445-AFigure 6-4. Circuit Diagram For 400 Ampere Model With Polarity R

OM-808 Page 24SA-044 886-AFigure 6-5. Circuit Diagram For 250/250 Ampere ModelSB-124 202Figure 6-6. Circuit Diagram For 250/250 Ampere Model With Pola

OM-808 Page 25SA-087 783-AFigure 6-7. Circuit Diagram For 350/350 Ampere ModelSA-095 027-AFigure 6-8. Circuit Diagram For Remote Grid Controls

The following terms areused interchangeablythroughout this manual:TIG = GTAWStick = SMAWTABLE OF CONTENTSSECTION 1 – SAFETY PRECAUTIONS - READ BEFORE

OM-808 Page 26SECTION 7 – PARTS LISTST-124 640-A12 34567891011 12 13 14 15 16 17181615191320102122236241252627282930Fig 7-231Fig 7-3. Hardware is comm

OM-808 Page 27Figure 7-1. Main AssemblyDescriptionQuantityPartNo.Dia.Mkgs.ItemNo.Model300 400 250/250 350/350 A AC A AC A/B AC/BC A AC1 049 472 RAIL,

OM-808 Page 28Figure 7-1. Main Assembly (Continued)DescriptionQuantityPartNo.Dia.Mkgs.ItemNo.Model300 400 250/250 350/350 A AC A AC A/B AC/BC A AC31 0

OM-808 Page 29Figure 7-2. Panel, Front w/Components(Fig 7-1 Item 30)DescriptionQuantityPartNo.Dia.Mkgs.ItemNo.Model300 400 250/250 350/350 A AC A AC A

OM-808 Page 30DescriptionQuantityPartNo.Dia.Mkgs.ItemNo.Model300 400 250/250 350/350 049 563 049 615 049 562 089 729Figure 7-3. Resistor Assembly, Cur

OM-808 Page 31DescriptionQuantityPartNo.Dia.Mkgs.ItemNo.Model300 400 250/250 350/350 049 563 049 615 049 562 089 729Figure 7-3. Resistor Assembly, Cur

OM-808 Page 32SD-080 254-E12 3456 7 89101112. Hardware is common andnot available unless listed.Figure 7-4. MOG-Pak 6 APR

OM-808 Page 33DescriptionPartNo.ItemNo.Figure 7-4. MOG-Pak 2, 4, & 6QuantityPAK 2A PAK 4A PAK 6ASinglePolarityDualPolaritySinglePolarityDualPolari

OM-808 Page 34DescriptionPartNo.ItemNo.Figure 7-5. Remote ControlQuantityModel2.5 Amp 5 Amp1 080 194 WRAPPER 1 1. . . . . . . . . . . . . . . . . .

Warranty Questions?Call1-800-4-A-MILLERfor your localMiller distributor.miller_warr 7/00Your distributor also givesyou ...ServiceYou always get the fa

PRINTED IN USA  2000 Miller Electric Mfg. Co. 6/00Miller Electric Mfg. Co.An Illinois Tool Works Company1635 West Spencer StreetAppleton, WI 54914 US

OM-808 Page 1SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USINGsom _nd_5/971-1. Symbol UsageMeans Warning! Watch Out! There are possible hazardswith t

OM-808 Page 2Arc rays from the welding process produce intensevisible and invisible (ultraviolet and infrared) raysthat can burn eyes and skin. Sparks

OM-808 Page 31-3. Additional Symbols For Installation, Operation, And MaintenanceFIRE OR EXPLOSION hazard.D Do not install or place unit on, over, or

OM-808 Page 41-5. EMF InformationConsiderations About Welding And The Effects Of Low FrequencyElectric And Magnetic FieldsWelding current, as it flows

OM-808 Page 5SECTION 1 – CONSIGNES DE SECURITE – LIRE AVANTUTILISATIONsom _nd_fre 5/971-1. Signification des symbolesSignifie Mise en garde ! Soyez vi