Lincoln Electric SVM105-B service manual Electric Shock can kill, ARC Rays can burn

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SAFETY

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ELECTRIC SHOCK can kill.

3.a. The electrode and work (or ground) circuits are electrically “hot” when the welder is on. Do not touch these “hot” parts with your bare skin or wet clothing. Wear dry, hole-free gloves to insulate hands.

3.b. Insulate yourself from work and ground using dry insulation. Make certain the insulation is large enough to cover your full area of physical contact with work and ground.

In addition to the normal safety precautions, if welding must be performed under electrically hazardous conditions (in damp locations or while wearing wet clothing; on metal structures such as floors, gratings or scaffolds; when in cramped positions such as sitting, kneeling or lying, if there is a high risk of unavoidable or accidental contact with the workpiece or ground) use the following equipment:

Semiautomatic DC Constant Voltage (Wire) Welder.

DC Manual (Stick) Welder.

AC Welder with Reduced Voltage Control.

3.c. In semiautomatic or automatic wire welding, the electrode, electrode reel, welding head, nozzle or semiautomatic welding gun are also electrically “hot”.

3.d. Always be sure the work cable makes a good electrical connection with the metal being welded. The connection should be as close as possible to the area being welded.

3.e. Ground the work or metal to be welded to a good electrical (earth) ground.

3.f. Maintain the electrode holder, work clamp, welding cable and welding machine in good, safe operating condition. Replace damaged insulation.

3.g. Never dip the electrode in water for cooling.

3.h. Never simultaneously touch electrically “hot” parts of electrode holders connected to two welders because voltage between the two can be the total of the open circuit voltage of both welders.

3.i. When working above floor level, use a safety belt to protect yourself from a fall should you get a shock.

3.j. Also see Items 6.c. and 8.

ARC RAYS can burn.

4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding. Headshield and filter lens should conform to ANSI Z87. I standards.

4.b. Use suitable clothing made from durable flame-resistant material to protect your skin and that of your helpers from the arc rays.

4.c. Protect other nearby personnel with suitable, non-flammable screening and/or warn them not to watch the arc nor expose themselves to the arc rays or to hot spatter or metal.

FUMES AND GASES can be dangerous.

5.a. Welding may produce fumes and gases

hazardous to health. Avoid breathing these fumes and gases.When welding, keep your head out of the fume. Use enough ventilation and/or exhaust at the arc to keep

fumes and gases away from the breathing zone. When

welding with electrodes which require special ventilation such as stainless or hard facing (see instructions on container or MSDS) or on lead or cadmium plated steel and other metals or coatings which produce highly toxic fumes, keep exposure as low as possible and below Threshold Limit Values (TLV) using local exhaust or mechanical ventilation. In confined spaces or in some circumstances, outdoors, a respirator may be required. Additional precautions are also required when welding on galvanized steel.

5.b. The operation of welding fume control equipment is affected by various factors including proper use and positioning of the equipment, maintenance of the equipment and the specific welding procedure and application involved. Worker expo- sure level should be checked upon installation and periodi- cally thereafter to be certain it is within applicable OSHA PEL and ACGIH TLV limits.

5.c. Do not weld in locations near chlorinated hydrocarbon vapors coming from degreasing, cleaning or spraying operations. The heat and rays of the arc can react with solvent vapors to form phosgene, a highly toxic gas, and other irritating prod- ucts.

5.d. Shielding gases used for arc welding can displace air and cause injury or death. Always use enough ventilation, especially in confined areas, to insure breathing air is safe.

5.e. Read and understand the manufacturer’s instructions for this equipment and the consumables to be used, including the material safety data sheet (MSDS) and follow your employer’s safety practices. MSDS forms are available from your welding distributor or from the manufacturer.

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5.f. Also see item 1.b.

AUG 06

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Contents Invertec V300-PRO Safety Electric Shock can kill ARC Rays can burnFumes and Gases can be dangerous Iii SafetyWelding Sparks can cause fire or explosion Cylinder may explode if damagedSûreté Pour Soudage a L’Arc Précautions DE SûretéMaster Table of Contents for ALL Sections Table of Contents Installation SectionSection A-1 Three Phase Single Phase InstallationProduct Description Electrical Installation Input Voltage SetupLocation Three Phase Input Power Input ConnectionConnection of Wire Feeders to the Invertec Single Phase InputRemote Control of Invertec K900-1 DC TIG Starter ConnectionParallel Operation Quick Disconnect Plugs K852-7 Output CablesSection B-1 Operation SectionControl Function / Operation OperationOperating Instructions Duty CycleFull Range Is Is Very Soft, 10 Is Very Crisp Mode SwitchAuxiliary Power Meter Polarity SwitchSection C-1 Accessories SectionOptions / Accessories AccessoriesSection D-1 Maintenance SectionInput Filter Capacitor Discharge Procedure MaintenanceOverload Protection Preventive MaintenanceFigure D.2 Location of Maintenance Components Section E-1 Theory of Operation SectionInput Line Voltage & Auxiliary Transformer Theory of OperationReturn to Section To Section TOC Precharge & Protection CircuitsCurrent Switch BoardsFET Modules Current Output and Control CircuitsPassive Pulse Width Modulation Minimum OutputMaximum Output Protective Circuits Overload ProtectionThermal Protection Section F-1 Troubleshooting & Repair SectionHOW to USE Troubleshooting Guide Troubleshooting & RepairPC Board Troubleshooting Procedures Additional Information Oscilloscope Warning Input Filter Capacitor CONDITION- INGMatched Parts Department Feeding ProblemsFeeding Problems See Input Rectifier test See Output Diodes test See Switch Board test V300-PRO Test Description Input Filter Capacitor Discharge ProcedureFigure F.I Location of Input Filter Capacitor Terminals Input Filter Capacitor Discharge ProcedureOutput Pilot Circuit Test Output Pilot Circuit TESTcont J2 J4 J3 G2527V300-PRO Protection Board Output Test Troubleshooting & Repair Test Procedure Figure F.6 Inserting Probes ProtectionCapacitor Balance Test Static Capacitor Test 912 V300-PRO Switch Board Test Switch Board Test Switch Board Test Table F.3 Snubber Resistor Test Check Test Result Conclusion Next Test Step Repair Action Snubber Resistor Test402/ R W 403 404Output Diode Test Output Diode Test Test ProcedureInput Rectifier Test Table F.5 Points StepsProbe Acceptable Meter Reading Overcurrent Protection Current Trigger Test Overcurrent Protection Current Trigger Test 302275D Control Overvoltage Protection DC Trigger Circuit Test Figure F.16 PC Boards Removed Overvoltage Protection DC Trigger Circuit Test311 309 310 #301 #305 1J8 #311 1J14 6J6 #302#313 #275D 3J8 2J14 1J6Thermal Protection AC Trigger Circuit Thermal Protection AC Trigger Circuit Figure F.20 PC Boards Moved for AccessFigure F.21 Thermal Protection AC Trigger Circuit V300-PRO Power Board Test Power Board Test Test aTest B Figure F.23 Power Board Test Points Simplified Trigger Circuit Capacitor Removal and Replacement Procedure Procedure Capacitor Removal and ReplacementFigure F.27 -- Removing Capacitor Nuts Figure F.27 Switch Board Removal and Replacement Procedure Procedure Switch Board ReplacementTest After Switch Board or Capacitor Replacement Perform Retest After Repair Test After Switch Board or Capacitor ReplacementOutput Diode Replacement Procedure Procedure Paralleled IndividualDiodes Output Diode Replacement ProcedureProcedure Diode Modules 61TROUBLESHOOTING & REPAIRF-61Min. Acceptable Max. All Modes V300-I V300-PRO Retest After RepairOCV at rated Input V300-PRO OutputSection G-1 Electrical Diagrams SectionV300 PRO Wiring Diagram Entire Machine Code 9825 & 9965 L8657+ ARC Wiring Diagram Entire Machine Code 9934 L8841ARC Wiring Diagram Entire Machine Code 10034 L9299I T C H 13,15 B O a R D F T Wiring Diagram Entire Machine Code 10035 L9301Wiring Diagram Entire Machine Code 10130 L9567 Wiring Diagram Entire Machine Code 10131 L9569 Wiring Diagram Entire Machine Code 10256 L10189 Wiring Diagram Entire Machine Code 10257 L10191 Controlboard #.$ #$ !#$ #!%&$ Schematic Entire MachineSchematic Driver PC Board S20216 Identification PC Board Assembly Driver L8660Schematic Driver PC Board S20799 Description PC Board Assembly DriverSchematic Switch PC Board L8440 CAPACITOR, Cemo 2700P 50V 5% PC Board Assembly Switch L8441Schematic Switch PC Board L10956 Reqd Identification PC Board Assembly Switch L10958-1Schematic Control PC Board G2525 Electrical Diagrams CAPACITOR, Cemo 150P Schematic Protection PC Board M16097 OCI1, OCI2, OCI3, OCI4 PC Board Assembly Protection L7915-2Schematic Power PC Board M16018 VOLT. REG. & Heat Sink Asbly PC Board Assembly Power L8033-7

SVM105-B specifications

The Lincoln Electric SVM105-B is a state-of-the-art welding machine that represents a leap forward in welding technology, designed for both professionals and enthusiasts in the welding industry. This versatile machine combines robust performance with user-friendly features, making it suitable for a wide range of welding applications.

One of the key features of the SVM105-B is its advanced inverter technology. This allows for a lightweight design without compromising on power output. The inverter technology ensures a stable arc and precise control, enabling consistent weld quality across various materials, including mild steel, stainless steel, and aluminum. This feature is particularly beneficial for users who demand exceptional performance in both thin and thick materials.

The SVM105-B also boasts an impressive output range, typically between 10A to 105A, allowing for adaptability to different welding tasks. Its ability to seamlessly switch between DC and AC modes makes it an ideal choice for professionals working in diverse environments, facilitating operations such as TIG and stick welding. This versatility is further enhanced by its compatibility with various electrode types, ensuring a more efficient and effective welding process.

User safety and comfort have not been overlooked in the design of the SVM105-B. Equipped with an efficient cooling system, this machine effectively manages heat during prolonged use, ensuring durability and longevity. Additionally, its intuitive digital display provides real-time feedback on settings, making it easier for users to monitor parameters and make necessary adjustments on the fly.

The SVM105-B is built with portability in mind. Its compact and lightweight design makes it easy to transport, enabling welders to bring their equipment to job sites without hassle. Furthermore, the machine features sturdy handles that contribute to its ease of maneuverability, supporting the demands of both inside workshops and outdoor projects.

Moreover, Lincoln Electric places a strong emphasis on quality and reliability, and the SVM105-B is a testament to this commitment. The machine is constructed from durable materials designed to withstand the rigors of daily use, ensuring it remains a staple in any welder's toolkit for years to come.

In conclusion, the Lincoln Electric SVM105-B stands out with its combination of advanced inverter technology, versatile output, user-friendly interface, and robust construction. Whether for professional or hobbyist use, this welding machine meets a wide array of welding needs while providing excellent performance and durability.