Lincoln Electric SVM125-A service manual Remote Control Optional Wire Feed Module Optional

Page 103

Section TOC

Master TOC

G-4

ELECTRICAL DIAGRAMS

G-4

Wiring Diagram (Code 10070 )

 

 

Return to

Return to Section TOC

Return to

Return to Master TOC

 

 

 

 

 

 

 

 

 

 

 

PIN CONFIGURATION

 

 

 

 

 

 

 

 

 

4

8

ON ENGINE

 

 

 

 

 

 

 

 

 

CR1

 

CONNECTOR

 

 

 

 

 

 

 

 

 

 

3

7

 

 

 

 

 

1

3

 

 

 

 

 

 

 

 

 

 

BOTTOM VIEW

 

2

6

 

 

 

 

 

 

 

 

 

(

 

SHOWN

)

 

 

 

 

 

 

 

 

 

 

1

5

 

 

U U R W Y

 

 

 

4

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IDLER

 

 

 

7

9

 

 

ENGINE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P.C.

 

ENGINE

A

B

 

54

PROTECTION

 

 

 

 

 

 

 

 

 

 

BOARD

 

 

RELAY

 

 

 

 

 

 

 

HOUR

 

 

 

 

 

 

 

 

 

 

 

 

 

METER

 

59A

 

 

 

 

 

 

 

 

56A

 

 

58C

60F

 

58D

 

 

 

53B

61

 

57

 

 

 

 

 

 

 

 

 

 

 

IDLER

 

START

 

 

R1

 

 

 

FUSE (SFE-14)

 

 

 

 

+

-

 

 

 

 

 

56

SOLENOID

 

 

 

 

 

 

 

 

 

 

50

 

 

 

G NO NC S

B

IGNITION

IDLER

 

 

 

 

 

 

N.A. 58A

 

 

 

SWITCH

SWITCH

OIL TEMP.

 

 

 

58B

 

 

 

 

 

51A

 

 

SENSOR

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

60

59

 

 

 

 

 

54B

 

 

 

 

 

 

 

60A

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

53

53A

58

 

OIL PRESSURE

 

50A

 

 

 

 

 

 

 

SENSOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

54A

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60C

 

 

55

 

5

 

 

 

 

 

 

52

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S

I

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STARTING

 

 

 

 

GAUGE GND

 

8

FUEL

 

 

 

MOTOR

 

 

 

 

 

OIL PRESSURE

 

7

SOLENOID

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50

 

 

 

 

 

 

60B

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

2

D+

W

1

 

 

 

 

 

 

60E

 

 

 

 

 

 

 

 

 

 

 

 

+ A -

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B+

D-

 

 

 

 

 

 

 

 

 

 

51

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ALTERNATOR

60D

ELECTRICAL SYMBOLS

PER E1537

LEAD COLOR CODE

B-BLACK

R-RED

G-GREEN

U-BLUE

N-BROWN

W-WHITE

 

Y-YELLOW

 

NOTES

N.A. EARLIER MODELS DO NOT HAVE THIS DIODE.

W B

115VOLT

RECEPTACLE

G

B

G

CB2 B CB1

G

B

G

CURRENT

UTRANSFORMER

U

CONTROL PANEL COMPONENTS

SHOWN AS VIEWED FROM REAR.

NEUTRAL BONDED TO FRAME

NEUTRE RACCORDE 'AU BATI

W

B

 

 

 

 

 

 

 

 

ALTERNATOR

ROTOR

 

SLIP RINGS

+ -

B

 

 

 

 

 

 

SLIP RING

 

 

+

 

NEAREST

R

 

 

 

TO IRON

AC

 

AC

230 VOLT

Y

-

 

 

 

 

RECEPTACLE

 

15A.

 

 

 

 

Y

 

 

FUSE

Y

B

B

R

ALTERNATOR

CB4 B CB3 W AUXILIARY POWER

WINDINGS

B

B

CR2 REED RELAY

R

N

P10

12 11 10 9 8 7 6 5 4 3 2 1

J5

N

-W +Y

 

U

610

 

610

 

602B

 

600B

 

41

1

600A

2

42

3

602A

4

5

RHEOSTAT

6

J8

P9

SELECTOR

SWITCH

GENERATOR

A

5 4 3 2 1

WELDER

LEAD BLOCK

N

U

-W+Y

TOC

TOC

NEGATIVEPOSITIVE (CC- )

REMOTE CONTROL (OPTIONAL)

WIRE FEED MODULE (OPTIONAL)

REMOTE CONTROL RECEPTACLE & SWITCH

PLUG FOR REMOTE CONTROL POTENTIOMETER

ON MACHINE, REMOVE PLUG "P10" FROM CONNECTOR "J5".

* SEE

 

B

 

R

BELOW

 

 

1

41

* SEE

2

600

3

42

BELOW

4

602

 

 

5

 

 

6

 

 

P8

 

X

Y

R

W

G

RESISTORS

Y X

B W

G

CONNECT

TO CASE

INLINE CONNECTORS

W.F.M.

CONTROL PANEL

CONNECT TO POS. & NEG. OUTPUT TERMINALS

NEGATIVE CV

OUTPUT TERMINAL

PANEL

PLUG (P5)

#8

LEAD

WIRE FEED

POS.

 

NEG.

MODULE

#2 HEAVY LEAD

Return to Section

SWITCH FOR LOCAL OR REMOTE CONTROL SHOWN IN LOCAL POSITION.

* WITH MACHINE NOT RUNNING, REMOVE PLUG "P9" ON

MACHINE FROM CONNECTOR "J8". THEN CONNECT

REMOTE CONTROL POTENTIOMETER BOX

CONNECT TO NEG. BRUSH HOLDER

608

609

#2 HEAVY LEAD

Return to Section TOC

Return to Master TOC

PLUG "P8" ON REMOTE CONTROL TO

CONNECTOR "J8" ON MACHINE.

RED & BLACK LEADS NOT CONNECTED ON THIS

MACHINE.

THERMOSTAT

* MACHINE MUST NOT BE RUNNING

 

250 AMP

WHEN MAKING THESE CONNECTIONS.

 

ASSEMBLY

 

R

 

 

CLEVELAND, OHIO U.S.A.

L9012

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The wiring diagram specific to your code is pasted inside one of the enclosure panels of your machine.

CLASSIC II

Image 103
Contents Classic II TM California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéMaster Table of Contents for ALL Sections Table of Contents Installation Section Technical Specifications Classic InstallationLocation and Ventilation Safety PrecautionsStoring PRE-OPERATION Engine Service Spark Arrester Muffler UndercarriagesWelding Cable Connections Electrical Output ConnectionsMachine Grounding Auxiliary Power RECEPTACLES, PLUGS, and HAND-HELD EquipmentCircuit Breakers Classic Table of Contents Operation Section General Description Safety InstructionsOperation Operating InstructionsWelder Operational Features and ControlsDesign Features Recommended ApplicationsLimitations Welding CapabilityWELDER/GENERATOR Controls Controls and SettingsFigure B.2 Current Controls Control of Welding CurrentReturn to Diesel Engine ControlsCheck and fill the engine fuel tank Engine OperationBefore Starting the Engine Starting the EngineCold Weather Starting Stopping the EngineBREAK-IN Period General Information Welding OperationIdler Operation Figure B.4 Welding Circuit Connections for Stick Welding After you finish weldingTable B.1 Range Settings for Wire SIZE/SPEED 13B-13 Auxiliary PowerSuggested Power Applications Running Watts Start-up Watts Table B.2 Generator Power ApplicationsTable of Contents Accessories Accessory Kit K703 Includes the following OPTIONS/ACCESSORIESSemiautomatic Welding TIG WeldingConnection of the LN-7 to Classic II Using K867 Universal Connection of Lincoln Electric Wire FeedersAdapter see Figure C.1 Adapter Work Electrode Cable To LN-7 Figure C.3 Classic II/LN-25 Connection Diagram With K444-2 Remote Control K487-25 Table of Contents Maintenance Engine Maintenance Routine and Periodic MaintenanceFigure D.1 OIL Drain and Refill Figure D.2 Tightening the Cooling Blower Belt Every 50 Hours Daily or BeforeStarting Engine First 50 HoursChecking Specific Gravity Battery MaintenanceIdler Maintenance WELDER/GENERATOR MaintenanceFigure D.3 Major Component Locations Table of Contents Theory of Operation Section ALTERNATOR, and Protection Theory of OperationCircuits Auxiliary and Field Feedback Coils Excitation FlashingInterpole and Series Coils Current Range Selector Fine Current AdjustmentEngine Idler Circuit DC Generator Machines Classic Table of Contents Troubleshooting & Repair Section HOW to USE Troubleshooting Guide Troubleshooting & RepairPC Board can be damaged by static electricity PC Board Troubleshooting ProceduresObserve Safety Guidelines Troubleshooting GuideDetailed in the beginning of this manual Shunt Field Winding Test Perform the Shunt Field Wind Troubleshooting & Repair Function Problems Troubleshooting & Repair Troubleshooting & Repair Troubleshooting & Repair Welding Problems Test Description Alternator Rotor TestMaterials Needed Alternator Rotor Test Test ProcedureFigure F.2 Measuring Rotor Resistance Classic Figure F.3 Measuring Rotor Resistance to Ground Classic Shunt Field Winding Test Shunt Field Winding Test PIN TAB Idler Solenoid Test Idler Solenoid Test Engine Throttle Adjustment Test Engine Throttle Adjustment Test Oscilloscope Method Frequency Counter MethodAdjusting Screw Locking NUT Description Flashing the FieldsDo not remove brush holder ProcedureNormal Open Circuit Voltage Waveform 115VAC Supply Scope SettingsHigh Idle no Load Fine Current Control Rheostat AT Maximum Normal Open Circuit DC Weld Voltage Waveform Typical DC Weld Output Voltage Waveform Machine Loaded Selector Switch AT Maximum PositionAlternator Rotor Removal Replacement Alternator Rotor Removal ReplacementFuel Tank Return Line Mounting Hardware Cable Retainer Bowl Negative Output Terminal Copper Strap on Rear Side Figure F.14 Alternator Cover Removal Figure F.15 Rotor Removal Replacement Alternator Stator Removal and Replacement Alternator Stator Removal ProcedureVAC Receptacle Circuit Breaker Field Bridge Rectifier Genernator Brush HOLDER/COIL Cables Drill Spot STATOR/ENDBRACKET Mounting Bolt Generator Frame Removal and Replacement Figure F.21 Generator Lead and Cable Connections Generator Frame RemovalRope Sling ENGINE/GENERATOR Mounting Holes Generator Armature Removal and Replacement Blower Paddle PADDLE/ARMATURE Mounting Bolts Generator Armature RemovalWelder DC Output AC Auxiliary Power Receptacle OutputRetest After Repair Engine OutputElectrical Diagrams Section Classic Wiring Diagram Code Electrical DiagramsRemote Control Optional Remote Control Optional Wire Feed Module Optional Wire Feed Thermostat * Machine Must not be Running J3 Sensor Idler PC Board M13708 Schematic Idler PC Board M13708 Components Idler PC Board l9902 Schematic Idler PC Board l9902 Components

SVM125-A specifications

The Lincoln Electric SVM125-A is a versatile and highly efficient welding machine that has gained significant recognition in the welding industry. Designed for both professionals and enthusiasts, this machine combines advanced technology with user-friendly features to deliver outstanding performance in a range of welding applications.

One of the standout features of the SVM125-A is its Inverter Technology. This cutting-edge technology allows for lightweight and compact design, making the machine highly portable. The inverter technology also provides a steady arc, which is crucial for achieving clean, high-quality welds. With a duty cycle of 125 amps at a 60% duty cycle, this welding machine can handle a variety of materials and thicknesses, from thin sheet metal to heavier structural components.

The SVM125-A supports multiple welding processes, including MIG, stick, and TIG welding. This versatility makes it an ideal choice for diverse welding tasks, whether you're working in a fabrication shop, doing repair work, or engaged in hobbyist projects. The machine features easy switch functionality, allowing users to quickly shift between welding processes without complicated setup.

Another notable characteristic is the machine's user-friendly interface. The intuitive control panel includes clear indicators and knobs that allow for easy adjustments of voltage and wire feed speed. This design is especially helpful for novice welders, providing them with the confidence to make adjustments as needed and ensuring optimal weld quality.

Safety is also a priority with the SVM125-A. The machine is equipped with thermal overload protection, which automatically shuts it down in case of overheating, preventing damage to the unit and ensuring operator safety. Additionally, the machine features a robust construction that emphasizes durability, making it suitable for demanding work environments.

Portability is enhanced through its lightweight design, and the built-in carrying handle makes it easy to transport from one job site to another. The SVM125-A is also compatible with a variety of welding accessories, further increasing its adaptability and functionality.

In conclusion, the Lincoln Electric SVM125-A stands out as a well-rounded welding machine that integrates advanced technology with user-friendly features. Its versatility in welding processes, robust design, and emphasis on safety and usability make it a valuable tool for welders at all skill levels. Whether for professional use or personal projects, the SVM125-A is a reliable choice that delivers exceptional performance and quality.