Miller Electric S-74D Owner's Manual

Visit our website atwww.MillerWelds.comS-74S, S-74DProcessesDescriptionMIG (GMAW) WeldingFlux Cored (FCAW) Welding(Gas- And Self-Shielded)Wire FeederO

OM-1500-10 Page 6Le rayonnement de l’arc génère des rayons visibles etinvisibles intenses (ultraviolets et infrarouges) suscep-tibles de causer des br

OM-1500-10 Page 71-3. Autres symboles relatifs à l’installation, au fonctionnement et à l’entretien del’appareil.Risque D’INCENDIE OU D’EXPLO-SIOND Ne

OM-1500-10 Page 81-4. Principales normes de sécuritéSafety in Welding, Cutting, and Allied Processes, norme ANSI Z49.1,de l’American Welding Society,

OM-1500-10 Page 9SECTION 2 – DEFINITIONS1 1.1 1.2 1.33 3.1 3.2 3.34 4.1+22.12.2++56+2.3S-178 936A. Warning! Watch Out! Thereare possible hazards assho

OM-1500-10 Page 10ST-178 794-A50/60S/N:2410.0Hz50/60IP 21V100 A750 X 100 %VU1=A I1=1U2=I2=2-2. Rating Label For CE ProductsFor label locationsee Secti

OM-1500-10 Page 11SECTION 3 – INTRODUCTION3-1. SpecificationsType of InputPowerWelding PowerSource TypeWire FeedSpeed RangeWireDiameterRangeWeldingCir

OM-1500-10 Page 124-2. Rear Panel Connections And Rotating Drive Assembly802 824-A / 802 825-A2341 14-Pin Control Cable - 10 Ft2 Shielding Gas Valve F

OM-1500-10 Page 134-3. 14-Pin Plug PLG12 InformationPin* Pin InformationA 24 volts ac with respect to socket G.AJKIB Contact closure to A completes 24

OM-1500-10 Page 144-6. Installing And Threading Welding WireRef. 156 929-A / Ref. 150 922 / Ref. 156 930 / S-0627-ATools Needed:. Be sure that outlet

OM-1500-10 Page 154-7. Setting Internal DIP SwitchesPosition Settings And Results For DIP Switch S1 On PC1On = Current detect over-ride. For welding p

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

OM-1500-10 Page 16Tools Needed:1/4 in4-8. Equipment DIP Switch Settings (For Models With Meters Only)123 45OrOrHigh SpeedMotorMeters/MinuteHigh SpeedM

OM-1500-10 Page 17SECTION 5 – OPERATION5-1. Power Switch1 Power Switch1802 827-A5-2. Jog/Purge1802 828-A21 Jog/Purge Push Button2 Wire Speed Control3

OM-1500-10 Page 185-3. Trigger Hold Switch1 Trigger Hold SwitchTrigger hold allows the operator to weld with-out holding the gun trigger.• To use the

OM-1500-10 Page 19SECTION 6 – MAINTENANCE6-1. Routine MaintenanceY Disconnect power before maintaining.3 MonthsReplaceunreadablelabels.Clean andtighte

OM-1500-10 Page 206-2. Diagnostics• Error IndicationsError conditions are indicated by LED3 onPC1 or on display (on models with meters). Toview LED3,

OM-1500-10 Page 216-3. TroubleshootingY Disconnect power before troubleshootingTrouble RemedyWire feeds, shielding gas flows, butelectrode wire is not

OM-1500-10 Page 22SECTION 7 – ELECTRICAL DIAGRAMFigure 7-1. Circuit Diagram202 246-A

OM-1500-10 Page 23Notes

OM-1500-10 Page 24SECTION 8 – PARTS LIST802 943. Hardware is common andnot available unless listed.Fig 8–221Fig 8–341261415161718192057891011121110133

OM-1500-10 Page 25DescriptionPartNo.ItemNo.Figure 8-1. Main AssemblyQuantity1 159 647 INSULATOR, motor clamp 1. . . . . . . . . . . . . . . . . . .

The following terms areused interchangeablythroughout this manual:MIG = GMAWTABLE OF CONTENTSSECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING 1. . .

OM-1500-10 Page 26802 945-A. Hardware is common andnot available unless listed.2567811879101213141516171819202324252627222842131Figure 8-2. Control Bo

OM-1500-10 Page 27QuantityDescriptionPartNo.Dia.Mkgs.ItemNo.ModelS-74S S-74DFigure 8-2. Control Box (Figure 8-1 Item 21)21 171 007 KNOB, pointer 1.670

OM-1500-10 Page 28See Table 8-1 For Drive Roll & Wire Guide Kits. Hardware is common andnot available unless listed.802 950-A123456781092324654321

OM-1500-10 Page 29QuantityDescriptionPartNo.Dia.Mkgs.ItemNo.ModelS-74S S-74DFigure 8-3. Drive Assembly, Wire (Continued)173 837 Pressure Arm (Consisti

OM-1500-10 Page 30Table 8-1. Drive Roll And Wire Guide Kits.023-.025 in. 0.6 mm 151 024 087 130.030 in. 0.8 mm 151 025 053 695.035 in. 0.9 mm 151 026

Warranty Questions?Call1-800-4-A-MILLERfor your localMiller distributor.miller_warr 6/02Your distributor also givesyou ...ServiceYou always get the fa

PRINTED IN USA  2003 Miller Electric Mfg. Co. 1/03Miller Electric Mfg. Co.An Illinois Tool Works Company1635 West Spencer StreetAppleton, WI 54914 US

dec_con1_11/02Declaration of Conformity forEuropean Community (CE) ProductsThis information is provided for units with CE certification (see rating la

OM-1500-10 Page 1SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USINGsom _nd_7/021-1. Symbol UsageMeans Warning! Watch Out! There are possible hazardswi

OM-1500-10 Page 2Arc rays from the welding process produce intensevisible and invisible (ultraviolet and infrared) raysthat can burn eyes and skin. Sp

OM-1500-10 Page 31-3. Additional Symbols For Installation, Operation, And MaintenanceFIRE OR EXPLOSION hazard.D Do not install or place unit on, over,

OM-1500-10 Page 41-4. Principal Safety StandardsSafety in Welding, Cutting, and Allied Processes, ANSI Standard Z49.1,from American Welding Society, 5

OM-1500-10 Page 5SECTION 1 – CONSIGNES DE SÉCURITÉ – À LIRE AVANTUTILISATIONsom _nd_fre 7/021-1. Signification des symbolesSignifie « Mise en garde. F