Lincoln Electric SVM125-A service manual Wire Feed

Page 104

TOC

TOC

G-5

ELECTRICAL DIAGRAMS

G-5

Wiring Diagram (Code 10071 )

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

54

 

 

 

 

 

IDLER

 

 

 

7

9

 

ENGINE

 

 

 

 

 

 

 

 

 

 

 

 

 

P.C.

 

ENGINE

A

B

 

 

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

 

 

 

60C

 

 

 

 

 

 

 

 

54A

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

55

 

5

 

ELECTRICAL SYMBOLS

CONTROL PANEL COMPONENTS

 

PER E1537

 

 

 

SHOWN AS VIEWED FROM REAR.

 

 

 

 

LEAD COLOR CODE

NEUTRAL BONDED TO FRAME

 

B-BLACK

R-RED

NEUTRE RACCORDE 'AU BATI

 

G-GREEN

U-BLUE

W

 

 

 

 

 

N-BROWN

W-WHITE

B

 

 

 

 

 

 

 

 

 

NOTES

Y-YELLOW

 

ALTERNATOR

ROTOR

 

 

 

 

N.A. EARLIER MODELS DO NOT

SLIP RINGS

+

-

 

 

 

HAVE THIS DIODE.

 

B

+

 

 

W B

SLIP RING

 

 

 

NEAREST

 

R

 

 

 

 

 

TO IRON

 

AC

 

AC

 

115 VOLT

230 VOLT

 

Y

-

 

 

RECEPTACLE

RECEPTACLE

 

 

15A.

 

 

 

G

 

 

 

Y

 

 

 

 

FUSE

 

 

 

 

 

 

 

 

 

 

Y

 

 

 

 

B

 

 

R

 

 

 

 

 

 

 

 

 

 

CB1

G

 

 

 

ALTERNATOR

 

CB2

 

 

W

 

 

 

 

 

P10

 

 

 

 

 

 

 

 

 

12 11 10

9

8

7

6

5

4

3

2

1

J5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

U

-W +Y

 

 

 

 

 

 

 

 

 

610

 

 

 

 

 

 

 

 

 

610

 

 

 

602B

 

 

 

 

600B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

41

 

 

 

 

 

1

 

 

 

600A

 

 

 

 

2

 

 

 

42

 

 

 

 

 

3

 

 

 

602A

 

 

 

 

4

 

 

 

 

 

 

 

5

 

 

 

RHEOSTAT

 

 

 

 

6

 

 

 

 

 

 

 

J8

 

P9

 

 

 

 

 

 

 

 

SELECTOR

SWITCH

STARTING MOTOR

+

52

S

I

 

 

 

 

 

GAUGE

GND

8

FUEL

 

 

 

OIL PRESSURE

7

SOLENOID

 

 

 

 

 

 

 

50

 

60B

 

 

 

 

60E

 

2

D+

W

1

 

 

 

 

 

+ A

-

 

 

 

 

 

B+

D-

 

 

 

 

51

 

 

 

 

 

 

 

ALTERNATOR

60D

G

(30AMP)

(15AMP)

AUXILIARY

POWER

 

 

 

 

B

WINDINGS

 

 

 

 

B

 

 

G

 

 

 

 

 

 

B

 

CURRENT

B

 

 

 

CR2 REED

U

TRANSFORMER

RELAY

U

R

N

GENERATOR

A

5

4

3

2 1

WELDER

LEAD BLOCK

N

U

-W+Y

TOC

TOC

NEGATIVEPOSITIVE (CC- )

Section

Master

REMOTE CONTROL (OPTIONAL)

WIRE FEED MODULE (OPTIONAL)

to

to

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

PLUG

 

 

CONNECTORS

(P5)

 

 

W.F.M.

 

 

 

CONTROL

 

 

 

PANEL

 

 

 

 

#8

LEAD

WIRE FEED

CONNECT TO POS. & NEG.

POS.

 

OUTPUT TERMINALS

NEG.

 

MODULE

 

 

NEGATIVE CV

#2 HEAVY LEAD

OUTPUT TERMINAL

 

PANEL

 

 

 

Return to Section TOC

Return to Master TOC

SWITCH FOR LOCAL OR REMOTE CONTROL SHOWN IN LOCAL POSITION.

*WITH MACHINE NOT RUNNING, REMOVE PLUG "P9" ON MACHINE FROM CONNECTOR "J8". THEN CONNECT PLUG "P8" ON REMOTE CONTROL TO

CONNECTOR "J8" ON MACHINE.

RED & BLACK LEADS NOT CONNECTED ON THIS MACHINE.

REMOTE CONTROL POTENTIOMETER BOX

608

609

 

CONNECT TO NEG.

 

 

 

BRUSH HOLDER

#2 HEAVY LEAD

 

 

 

250 AMP

* MACHINE MUST NOT BE RUNNING

 

THERMOSTAT

 

ASSEMBLY

WHEN MAKING THESE CONNECTIONS.

 

R

 

 

CLEVELAND, OHIO U.S.A.

L9013

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 104
Contents Classic II TM Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcMaster Table of Contents for ALL Sections Table of Contents Installation Section Installation Technical Specifications ClassicStoring Safety PrecautionsLocation and Ventilation PRE-OPERATION Engine Service Muffler Undercarriages Spark ArresterElectrical Output Connections Welding Cable ConnectionsCircuit Breakers Auxiliary Power RECEPTACLES, PLUGS, and HAND-HELD EquipmentMachine Grounding Classic Table of Contents Operation Section Safety Instructions OperationOperating Instructions General DescriptionOperational Features and Controls Design FeaturesRecommended Applications WelderWelding Capability LimitationsControls and Settings WELDER/GENERATOR ControlsControl of Welding Current Figure B.2 Current ControlsDiesel Engine Controls Return toEngine Operation Before Starting the EngineStarting the Engine Check and fill the engine fuel tankBREAK-IN Period Stopping the EngineCold Weather Starting Idler Operation Welding OperationGeneral Information After you finish welding Figure B.4 Welding Circuit Connections for Stick WeldingTable B.1 Range Settings for Wire SIZE/SPEED Auxiliary Power 13B-13Table B.2 Generator Power Applications Suggested Power Applications Running Watts Start-up WattsTable of Contents Accessories OPTIONS/ACCESSORIES Accessory Kit K703 Includes the followingTIG Welding Semiautomatic WeldingAdapter see Figure C.1 Connection of Lincoln Electric Wire FeedersConnection of the LN-7 to Classic II Using K867 Universal 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 Routine and Periodic Maintenance Engine MaintenanceFigure D.1 OIL Drain and Refill Figure D.2 Tightening the Cooling Blower Belt Daily or Before Starting EngineFirst 50 Hours Every 50 HoursBattery Maintenance Checking Specific GravityWELDER/GENERATOR Maintenance Idler MaintenanceFigure D.3 Major Component Locations Table of Contents Theory of Operation Section Circuits Theory of OperationALTERNATOR, and Protection Interpole and Series Coils Excitation FlashingAuxiliary and Field Feedback Coils Engine Idler Circuit Fine Current AdjustmentCurrent Range Selector DC Generator Machines Classic Table of Contents Troubleshooting & Repair Section Troubleshooting & Repair HOW to USE Troubleshooting GuidePC Board Troubleshooting Procedures PC Board can be damaged by static electricityDetailed in the beginning of this manual Troubleshooting GuideObserve Safety Guidelines Shunt Field Winding Test Perform the Shunt Field Wind Troubleshooting & Repair Function Problems Troubleshooting & Repair Troubleshooting & Repair Troubleshooting & Repair Welding Problems Materials Needed Alternator Rotor TestTest Description Test Procedure Alternator Rotor TestFigure 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 Frequency Counter Method Oscilloscope MethodAdjusting Screw Locking NUT Flashing the Fields DescriptionProcedure Do not remove brush holderHigh Idle no Load Fine Current Control Rheostat AT Maximum Scope SettingsNormal Open Circuit Voltage Waveform 115VAC Supply Normal Open Circuit DC Weld Voltage Waveform Machine Loaded Selector Switch AT Maximum Position Typical DC Weld Output Voltage WaveformAlternator Rotor Removal Replacement Replacement Alternator Rotor RemovalFuel 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 Procedure Alternator Stator RemovalVAC Receptacle Circuit Breaker Field Bridge Rectifier Genernator Brush HOLDER/COIL Cables Drill Spot STATOR/ENDBRACKET Mounting Bolt Generator Frame Removal and Replacement Generator Frame Removal Figure F.21 Generator Lead and Cable ConnectionsRope Sling ENGINE/GENERATOR Mounting Holes Generator Armature Removal and Replacement Generator Armature Removal Blower Paddle PADDLE/ARMATURE Mounting BoltsAC Auxiliary Power Receptacle Output Retest After RepairEngine Output Welder DC OutputElectrical Diagrams Section Classic Electrical Diagrams Wiring Diagram CodeRemote 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.