Lincoln Electric SVM134-A service manual Electrical Diagrams, Wiring Diagram Classic

Page 94
L9262
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.
7-28-2000F
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G-2

ELECTRICAL DIAGRAMS

G-2

WIRING DIAGRAM - CLASSIC I

 

 

CLASSIC I - WIRING DIAGRAM

ALTERNATE IGNITION CIRCUIT (WITH RESISTOR) SUPPLIED ON EARLIER ENGINES

+- B

IGNITION

IGNITION

COIL

RESISTOR

 

BAT

R

R

TO PLUGS

DISTRIBUTOR

TO PLUGS

+- B

IGNITION

COIL

RDISTRIBUTOR

IDLER

P.C.

BOARD

W B B R Y

ELECTRICAL SYMBOLS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PER E1537

 

CONTROL PANEL COMPONENTS

 

P10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LEAD COLOR CODE

SHOWN AS VEIWED FROM REAR.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12 11 10

9

8

7

6

5

4

3

2

1

 

 

 

 

B-BLACK

R-RED

 

 

 

 

 

J5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OR GREY

U-BLUE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G-GREEN

W-WHITE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

N-BROWN

Y-YELLOW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U

 

 

 

 

 

 

 

 

610

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

602B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

41

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CARBURETOR

ENGINE

 

 

R

 

W

 

 

R

 

FUEL SHUT-OFF

HOUR

OIL

Y

 

 

 

 

METER

PRESSURE

 

 

 

IDLER

START

 

 

 

 

+ -

LIGHT

IGNITION

IDLER

N

SOLENOID

R

 

G

 

 

 

SWITCH

SWITCH

 

G

 

 

 

 

 

 

 

 

 

 

 

FUSE IN CIRCUIT

 

2

 

F1

 

ON C.S.A. VERSION

42

3

 

 

ONLY.

 

 

602A

4

600B

15A.

 

 

 

 

 

 

RHEOSTAT

5

 

 

B

 

6

 

 

 

J8

 

 

 

 

P9

 

 

 

 

600A

 

Return to

TOC

Return to

TOC

 

 

U

Y

 

 

 

50A

OIL PRESSURE

 

 

 

SWITCH

 

 

W

 

Y

 

 

 

 

 

 

S

R

ALTERNATOR

 

 

 

 

+

B

 

 

 

B

+

EXC

 

 

 

 

 

 

GROUND

 

STARTING

+ A -

 

 

MOTOR

U

 

 

 

 

TO BASE

GROUND

 

 

TO ENGINE

 

R

B

 

 

AUX POWER

B

RECEPTACLE

R

E

 

FOR REMOTE

E

OPTION

 

-

TO EXCITER

OUTPUT

+

CR2 REED

RELAY

R

N NEGATIVE

(CC-)

SELECTOR

SWITCH

GENERATOR

A

5 4 3 2 1

WELDER

LEAD BLOCK

N

U

POSITIVE

(CC+) & (CV+ WITH WFM OPTION)

K924-1 REMOTE CONTROL (OPTIONAL)

WIRE FEED MODULE (OPTIONAL)

K924-4 REMOTE CONTROL (OPTIONAL)

P11

REMOTE CONTROL RECEPTACLE & SWITCH

PLUG FOR REMOTE CONTROL POTENTIOMETER

* * SEE

BELOW

REMOTE CONTROL RECEPTACLE & SWITCH

PLUG FOR REMOTE CONTROL POTENTIOMETER

ON MACHINE, REMOVE PLUG "P10" FROM CONNECTOR "J5". CONNECT PLUG "P5" ON W.F.M. TO CONNECTOR "J5" ON MACHINE.

* SEE

B

X

BELOW

R

 

RESISTORS G

Y

X

* SEE

B

X

BELOW

R

 

141

2

600

Y

* SEEBELOW 3

42

R

4

602

 

5

 

W

6

 

 

 

P8

 

 

 

 

SWITCH FOR LOCAL OR

 

 

REMOTE CONTROL SHOWN

RESISTORS G

Y

X

B W

CONNECT

INLINE CONNECTORS

W.F.M.

CONTROL PANEL

CONNECT TO POS. & NEG. OUTPUT TERMINALS

NEGATIVE CV

OUTPUT TERMINAL

PANEL

PLUG (P5)

#8 LEAD

WIRE

POS.

FEED

NEG.

MODULE

 

#2 HEAVY LEAD

 

141

* SEE

2

600

W

Y

3

42

 

 

BELOW

4

602

 

 

 

 

 

 

5

 

 

 

 

6

 

 

 

 

P8

 

 

 

SWITCH FOR LOCAL OR

REMOTE CONTROL SHOWN

IN LOCAL POSITION.

B W

CONNECT TO CASE

REMOTE CONTROL POTENTIOMETER BOX

Return to Section

Return to Master

IN LOCAL POSITION.

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

MACHINE FROM CONNECTOR "J8". THEN CONNECT

TO CASE

REMOTE CONTROL POTENTIOMETER BOX

CONNECT TO NEG. BRUSH HOLDER

608

609

*WITH MACHINE OFF, REMOVE PLUG "P9" ON MACHINE FROM CONNECTOR "J8". THEN CONNECT PLUG "P8" ON REMOTE CONTROL KIT TO CONNECTOR "J8" ON MACHINE.

* * IF A WIRE FEED MODULE IS INSTALLED, WITH THE MACHINE OFF, DISPOSE OF THE UNCONNECTED

Return to Section TOC

Return to Master TOC

PLUG "P8" ON REMOTE CONTROL TO

CONNECTOR "J8" ON MACHINE.

CONNECT RED AND BLACK LEADS ON REMOTE TO

RED AND BLACK LEADS ON MACHINE.

 

#2 HEAVY LEAD

200 AMP

* MACHINE MUST NOT BE RUNNING

THERMOSTAT

ASSEMBLY

WHEN MAKING THESE CONNECTIONS.

PLUG "P10" (IF ONE IS ON THE MACHINE). FASTEN THE NEW PLUG "P11" NEARBY, LEAVING IT UNCONNECTED.

IF NO WIRE FEED MODULE IS INSTALLED, WITH THE MACHINE OFF, DISCONNECT PLUG "P10" ON THE MACHINE FROM CONNECTOR "J5". CONNECT PLUG "P11" FROM THE REMOTE CONTROL KIT TO CONNECTOR "J5" ON THE MACHINE.

CAUTION: DAMAGE CAN OCCUR TO THE REMOTE CONTROL SWITCH IF IT IS USED WITHOUT THE "P11" PLUG INSTALLED OR A WIRE FEED MODULE INSTALLED.

ON CLASSIC I MACHINES CONNECT RED AND BLACK LEADS ON REMOTE TO RED AND BLACK LEADS ON MACHINE.

CLASSIC I

Page 93 Page 95
Image 94
Page 93 Page 95
Contents Classic I 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 ClassicLocation and Ventilation Safety PrecautionsStoring PRE-OPERATION Engine Service Exhaust Spark Arrester Cooling SystemMuffler TrailersMachine Grounding Figure A.1 Ground Stud LocationWelding Cable Connections Auxiliary Power Receptacle PLUGS, and HAND-HELD EquipmentElectrical Output Connections Cable size for combined lengthClassic Table of Contents Operation Section Operation Safety InstructionsOperating Instructions Welder Operational Features and ControlsRecommended Applications GeneratorControls and Settings WELDER/GENERATOR ControlsControl of Welding Current Figure B.2 Current ControlsGasoline Engine Controls Return Section TOCBefore Starting the Engine Engine OperationStarting the Engine Cold Weather Starting Stopping the EngineBREAK-IN Period Welding Operation After you finish weldingAuxiliary Power Table B.1 Range Settings for Wire SIZE/SPEEDTable of Contents Accessories OPTIONS/ACCESSORIES Semiautomatic Welding AccessoriesConnection of the LN-25 to Connection of Lincoln Electric Wire FeedersWire Feed Module see Figure C.1 Classic I Across the ARC withClassic Table of Contents Maintenance Safety Precautions Routine and Periodic Maintenance Engine MaintenanceFigure D.1 OIL Drain and Refill MAX MIN Figure D.2A Engine Coolant Drain Plug Set the terminal gap with a feeler gauge or gapping After cleaning or when installing a new spark plugGap Specifications 0.032 inch .8 mm Tool. See Figure D.4Battery Maintenance Classic I charging system is NegativeWELDER/GENERATOR Maintenance Return to Section Return to Section TOCIdler Maintenance Figure D.5 Major Component Locations Classic Table of Contents Theory of Operation Section Theory of Operation BATTERY, STARTER, Engine Alternator and OIL Switch CircuitGeneral Description Excitation Flashing ENGINE, Main Generator Armature and Frame and DC ExciterMain SHUNT, Interpole and Series Coils Current Range Selector Fine Current AdjustmentEngine Idler Circuit DC Generator Machines Return to Section TOC Table of Contents Troubleshooting & Repair Section Troubleshooting & Repair HOW to USE Troubleshooting GuidePC Board Troubleshooting Procedures PC Board can be damaged by static electricityObserve Safety Guidelines Troubleshooting GuideDetailed in the beginning of this manual Shunt Field Winding Test Main Generator Throttle Adjustment Test Output Problems Function Problems Troubleshooting & Repair Engine Problems Welding Problems Test Description DC Exciter TestMaterials Needed Test Procedure DC Exciter TestFigure F.2 Exciter Cover Removal Small Flex Lead Solid Shunt Coil and Series Coil Resistance TestsIdler Solenoid Test Troubleshooting & Repair Main Generator Shunt Field Winding Test Main Generator Shunt Field Winding Test Figure F.6 Plug P10 PIN Assignments TAB Engine Throttle Adjustment Test Engine Throttle Adjustment Test Strobe Tach MethodEngine Throttle Adjustment Test Adjust High IdleAdjust Low Idle Flashing the Fields DescriptionProcedure Flashing the FieldsFigure F.11 Brush HOLDER/BATTERY Jumper Connections Normal Open Circuit Voltage Waveform 115VDC Supply Scope SettingsHigh Idle no Load Fine Current Control Rheostat AT Maximum Normal Open Circuit DC Weld Voltage Waveform Machine Loaded Selector Switch AT Maximum Typical DC Weld Voltage WaveformDC Exciter Armature and Field Coils Removal and Replacement Reassembly DC Exciter Armature Removal ProcedureDC Exciter Armature and Field Coils Field Coils Removal Procedure Perform the DC Exciter Armature Removal ProcedureMain Generator Frame Removal and Replacement Replacement Main Generator Frame Removal Bolt / NUTPerform the DC Exciter Armature Removal Figure F.16 Selector Switch Lead Removal Terminal LeadFigure F.18 Choke Control Cable Removal Loosen Here Main Generator Frame Removal Figure F.20 Front Panel Fastener Removal Troubleshooting & Repair Feet Remove Mounting NUTS, Washers BoltsPerform the DC Exciter Armature Reassembly Procedure Main Generator Armature Removal and Replacement Main Generator Armature Removal Armature is now free to be removed from the engineEngine Output DC Auxiliary Power Receptacle OutputRetest After Repair Welder DC OutputElectrical Diagrams Section Electrical Diagrams Wiring Diagram ClassicWire Feed Module Wiring Diagram Wiring Diagram Wire Feed ModuleSchematic Idler PC Board 16990 MPC Board Assembly Idler PC Board Idler
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