MW250ProcessesDescriptionGas Metal Arc (MIG) WeldingFlux Cored Arc (FCAW)WeldingArc Welding Power Source And WireFeederOM-154 501SMarch 1999®For Warra
OM-154 501 Page 62-2. Duty Cycle And Overheatingrduty1 5/95 − sb-150 215Duty Cycle is percentage of 10 min-utes that unit can weld at rated loadwithou
OM-154 501 Page 73-2. Installing Gas Supply1 Cylinder Bracket2 S-HookCrimp between small hole in brack-et and chain.3 Chain4 SnapCrimp onto open end o
OM-154 501 Page 83-3. Gun Polarity Connections1 Polarity Changeover Label2 Wire Drive Assembly3 Positive (+) Output Terminal4 Negative (−) Output Term
OM-154 501 Page 93-6. Positioning Jumper LinksCheck input voltage available atsite.1 Jumper Links Access DoorOpen door.2 Jumper Link Label3 Input Volt
OM-154 501 Page 103-7. Connecting Input PowerHave only qualified persons makethis installation.1 Line Disconnect Device OfProper Rating2 230 Volts AC
OM-154 501 Page 113-8. Installing Wire Spool And Adjusting Hub Tension1 Wire Spool2 Gun Contact TipIf necessary, cut welding wire off atcontact tip, a
OM-154 501 Page 123-9. Threading Welding Wire1 Wire Spool2 Welding Wire3 Inlet Wire Guide4 Pressure Adjustment Knob5 Drive Roll6 Outlet Wire Guide7 Gu
OM-154 501 Page 13SECTION 4 − OPERATION4-1. Front Panel Controls1 Wire Speed ControlUse control to set wire feed speed.2 Voltage ControlUse control an
OM-154 501 Page 144-2. Center Baffle Controls1 Wire Mode SwitchFor better control of wire speed useLow position when wire speed isbetween 90 and 670 i
OM-154 501 Page 15SECTION 5 − MAINTENANCE & TROUBLESHOOTING5-1. Routine MaintenanceY Disconnect power before maintaining.. Maintain more oftenduri
OM-154 501 Page 165-3. Fuses F1 And F2Turn Off unit and disconnect inputpower.1 Fuse F1 (See Parts List ForRating)F1 protects the 115 volts ac winding
OM-154 501 Page 175-6. TroubleshootingWelding Trouble RemedyNo weld output; wire does not feed. Check input power connections (see Section 3-7).Reset
OM-154 501 Page 18SECTION 6 − ELECTRICAL DIAGRAMSB-173 544-EFigure 6-1. Circuit Diagram For Welding Power Source
OM-154 501 Page 19Notes
OM-154 501 Page 20SECTION 7 − PARTS LIST12(Fig. 7−2)345678910111213141517161819202122ST-155 610-EFigure 7-1. Main AssemblyNOTE: All items indented by
OM-154 501 Page 21ST-155 609-E1234567891011121314151617181920212223242526Fig.7−3 − 27282930Figure 7-2. Baffle w/Components (Fig 7-1 Item 2)NOTE: All i
OM-154 501 Page 22See Table 6-1Drive Roll & Wire Guide Kits.ST-148 529-H12345678911101213151819162021222314. Hardware is common andnot available u
OM-154 501 Page 23Table 7-1. Drive Roll And Wire Guide KitsIMPORTANT: Base selection of drive rolls upon the following recommended usages:1. V-Groove
Effective January 1, 1999(Equipment with a serial number preface of “KK” or newer)This limited warranty supersedes all previous manufacturerswarrantie
TABLE OF CONTENTSSECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1. . .
PRINTED IN USAModel Name Serial/Style NumberPurchase Date(Date which equipment was delivered to original customer.)DistributorAddressCityState ZipPlea
OM-154 501 Page 1SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USINGsom _nd_5/971-1. Symbol UsageMeans Warning! Watch Out! There are possible hazardswi
OM-154 501 Page 2Arc rays from the welding process produce intensevisible and invisible (ultraviolet and infrared) raysthat can burn eyes and skin. Sp
OM-154 501 Page 31-3. Additional Symbols For Installation, Operation, And MaintenanceFIRE OR EXPLOSION hazard.D Do not install or place unit on, over,
OM-154 501 Page 41-5. EMF InformationConsiderations About Welding And The Effects Of Low FrequencyElectric And Magnetic FieldsWelding current, as it f
OM-154 501 Page 5SECTION 2 − SPECIFICATIONS2-1. SpecificationsSpecifications DescriptionType Of Output Direct Current/Constant Voltage (DC/CV)Rated We
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