Lincoln Electric SVM189-B service manual Welding Cutting, For Electrically, Iii

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iii

 

 

 

 

SAFETY

 

 

 

iii

 

 

 

 

 

 

 

 

 

 

WELDING

and

CUTTING

CYLINDER may explode

 

SPARKS can cause fire or

if damaged.

 

 

 

 

explosion.

 

 

7.a. Use only

compressed

gas

cylinders

 

 

 

 

 

 

 

6.a. Remove fire hazards from the welding area.If

containing the correct shielding gas for the

 

process used and

properly

operating

 

this is not possible, cover them to prevent the welding sparks

 

regulators

designed

for

the

gas and

 

from starting a fire. Remember that welding sparks and hot

 

pressure used. All hoses, fittings, etc. should be suitable for

 

materials from welding can easily go through small cracks

 

the application and maintained in good condition.

 

 

and openings to adjcent areas. Avoid welding near hydraulic

 

 

 

 

 

 

 

 

lines. Have a fire extinguisher readily available.

7.b. Always keep cylinders in an upright position securely

 

 

 

 

 

 

6.b. Where compressed gases are to be used at the job site,

chained to an undercarriage or fixed support.

 

 

 

 

 

 

 

special precautions should be used to prevent hazardous

7.c. Cylinders should be located:

 

 

 

 

 

situations. Refer to “Safety in Welding and Cutting” (ANSI

 

 

 

 

 

• Away from areas where they may be struck or subjected to

 

Standard Z49.1)

and the

operating

information for the

 

physical damage.

 

 

 

 

 

equipment being used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.c. When not welding, make certain no part of the electrode

• A safe distance from arc welding or cutting operations and

any other source of heat, sparks, or flame.

 

 

 

circuit is touching the work or ground. Accidental contact can

 

 

 

 

 

 

 

 

 

cause overheating and create a fire hazard.

7.d. Never allow the electrode, electrode holder or any other

 

 

 

 

 

 

6.d. Do not heat, cut or weld tanks, drums or containers until the

electrically “hot” parts to touch a cylinder.

 

 

 

 

 

 

 

 

proper steps have been taken to insure that such procedures

7.e. Keep your head and face away from the cylinder valve outlet

 

will not cause flammable or toxic vapors from substances

 

when opening the cylinder valve.

 

 

 

 

inside. They can cause an explosion even though they have

 

 

 

 

 

 

 

 

 

 

been “cleaned”. For information, purchase “Recommended

7.f. Valve protection caps should always be in place and hand

 

Safe Practices for the Preparation for Welding and Cutting of

 

tight except when the cylinder is in use or connected for

 

Containers and

Piping

That

Have

Held Hazardous

 

use.

 

 

 

 

 

Substances”, AWS F4.1 from the American Welding Society

 

 

 

 

 

 

 

 

 

 

 

(see address above).

 

 

 

7.g. Read and follow the instructions on compressed gas

 

 

 

 

 

 

cylinders, associated equipment, and CGA publication P-l,

6.e. Vent hollow castings or containers before heating, cutting or

“Precautions for Safe Handling of Compressed Gases in

 

welding. They may explode.

 

 

 

Cylinders,” available from the Compressed Gas Association

 

 

 

 

 

 

1235 Jefferson Davis Highway, Arlington, VA 22202.

6.f.

Sparks and spatter are thrown from the welding arc. Wear oil

 

 

 

 

 

 

free protective garments such as leather gloves, heavy shirt,

FOR ELECTRICALLY

 

cuffless trousers, high shoes and a cap over your hair. Wear

 

ear plugs when welding out of position or in confined places.

 

powered equipment.

 

Always wear safety glasses with side shields when in a

 

welding area.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8.a. Turn off input power using the disconnect

6.g. Connect the work cable to the work as close to the welding

switch at the fuse box before working on

 

area as practical. Work cables connected to the building

the equipment.

 

 

 

 

framework or other locations away from the welding area

 

 

 

 

 

 

increase the possibility of the welding current passing through

8.b. Install equipment in accordance with the U.S. National

 

lifting chains, crane cables or other alternate circuits. This can

Electrical Code, all local codes and the manufacturer’s

 

create fire hazards or overheat lifting chains or cables until

recommendations.

 

 

 

 

 

they fail.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8.c. Ground the equipment in accordance with the U.S. National

6.h. Also see item 1.c.

 

 

 

 

Electrical Code and the manufacturer’s recommendations.

6.I. Read and follow NFPA 51B “ Standard for Fire Prevention During Welding, Cutting and Other Hot Work”, available from NFPA, 1 Batterymarch Park,PO box 9101, Quincy, Ma 022690-9101.

6.j. Do not use a welding power source for pipe thawing.

Refer to http://www.lincolnelectric.com/safety for additional safety information.

COMPACT WIRE WELDERS

Image 4
Contents Safety Depends on You SVM189-BSafety California Proposition 65 WarningsElectric Shock can kill ARC Rays can burn For Electrically Welding CuttingIii Précautions DE Sûreté Sûreté Pour Soudage a L’ArcMaster Table of Contents for ALL Sections Table of Contents Installation Section Installation Technical SpecificationsSafety Precautions Select Suitable LocationStacking TiltingIdentify and Locate Components Table of Contents Operation Section Operation Product Description Product CapabilitiesCommon Welding Abbreviations Wear eye, ear and body protec- tionSee Figure B.1 Controls and SettingsSee Figure B.2 See Figure B.3 Drive Roll Tension Thumbscrew TurningWire Diameter Drive Roll Drive Roll Part Inner Wire Guide Number Part NumberSetting UP and Making a FLUX-CORED Weld Items Needed for Flux Cored WeldingConnect Leads and Cables on Load Wire SpoolMachine Figure B.9 MIG Conversion Kit K2526-1 025Install Shielding GAS Shielding GAS11OPERATION Connect Leads and Cables on the Machine12OPERATION Do not Remove or Conceal Warning LabelsFigure B.20 Compact Wire Welders Table of Contents Accessories Section Accessories K2525-1 Spot Timer KitK2532-1 Magnum 100SG Spool Gun K2377-1 Small Canvas CoverK520-Utility Cart K2275-1 Welding Cart Technical Specifications Magnum 100SG Spool GUN K2532-1 Unpacking the Spool GUNSafety Precautions Locating Spool GUN Components FeaturesAssembly of Items Inside the Magnum Spool GUN Figure C.3Recommended Welding Machines Safety Precautions Welding MachinesSpool GUN Disconnect input power from the machine Spool GUN / Wire Drive Selector Switch InstallationOpen the Machine 11.B. Connect P5 6-pin to harness J8 6-pin Electrical Connections11.C. Connect harness P8 6-pin to board J5 6- pin If Machine does have Optional Spot Timer .A. thru 12.D 544A 543AMounting the Switch RE-ASSEMBLE Machine AS FollowsACCESSORIESC-13 Disconnect input power to the machineRoutine Welding Machine Preparation Preparing the Spool GUNLoading Aluminum Wire Figure C.5Figure C.11 Connecting the GUN to the Welding Machine Figure C.17Table of Contents Maintenance Section Maintenance Safety Precautions MaintenanceRoutine Maintenance Overload Protection GUN and Cable MaintenanceFor Magnum 100L GUN GUN Handle Parts Changing LinerLiner trim length Major Component Locations Maintenance 1TABLE of CONTENTS-THEORY of Operation Section E-1 Theory of Operation General DescriptionFigure E.3 Input Power Circuits Input Line VOLTAGE, FAN Motor & Main TransformerOutput CONTROL, Rectification & Voltage Feedback Figure E.4 Output CircuitsTRIGGER, GAS Solenoid and Wire Drive Figure E.5 TRIGGER, GAS Solenoid & Wire DriveSCR Operation Figure E.6 SCR OperationElectronic Wire Drive Motor Protection Compact Wire Welders Table of Contents Troubleshooting & Repair Troubleshooting & Repair HOW to USE Troubleshooting GuidePC Board Troubleshooting Procedures Wiring Diagram OUTPUT/FEEDING Problems Feeding Problems Welding Problems Maintenance Section Issues Maintenance Section Cone or gas diffuser Test Description Case Cover Removal and Replacement ProcedureMaterials Needed Procedure Figure F.1 Case RemovalGAS Solenoid Test GasSolenoid Leads Wire Drive Motor Test Test Procedure MOT-MOT+Main Transformer Test Secondary Test Procedure Secondary Lead Compact Wire Welders FAN Motor Test Figure F.5. Control Board Lead Locations Typical Output Voltage Waveform Machine Loaded Scope SettingsVolts 10Volts 20ms Abnormal Open Circuit Voltage Waveform Control Board Removal and Replacement Procedure See Figure F.7 Nameplate Control Knob Compact Wire Welders Power Module Removal and Replacement Procedure Viewed from Rear of Machine Center Panel PolarityPanel CenterPanelScrews OutputStuds Compact Wire Welders Misc. Hand Tools Dow Corning Fine Steel Wool See Figure F.12 Dow Corning Figure F.12 DOW Corning Application Areas Transformer Compact Wire Welders Wire Drive Motor Removal and Replacement Procedure Lincolnelectric Phillips Mounting Screws Compact Wire Welders FAN Motor Assembly Removal and Replacement Procedure Viewed from Rear of Machine Center Panel CenterPanelScrews Locking Tabs Fan Troubleshooting & Repair Retest After Repair 125 AMP Units Wire Speed RangeRetest After Repair 140 AMP Units Open Circuit VoltageTroubleshooting & Repair Retest After Repair 180 AMP Units Table of Contents Diagram Section Wiring Diagram COmpacT WirE WElDErSSpool GUN Interface Wiring Diagram Wiring Diagram M20410-3 a COmpacT WirE WElDErS Thermostat TMP FAN TS1SchEmaTic cOmplETE machiNE m21240 C12 R1Feed R24