Schematic Idler PC Board, 16990 M | Lincoln Electric SVM134-A

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G-4	ELECTRICAL DIAGRAMS	G-4
SCHEMATIC - IDLER PC BOARD

16990 M

NOT USED

X1 -D

11

9

R8

D2

13

14

X1 -C

YEL

R9

R15

Y

TO BATTERY

10

8

+t

B3

15.0

15.0

56

D1

GND

GND

B4

W

TO SOLENOID

WHITE

3

16

C3

DZ1

C4

X1

10V

50

X2

C1

5W

15V

LM2901

4536B

GND

10K

12

8

1R

TO REED SW.

GND

GND

RED

R

B5

R13

13.7K

C10

D7

.047

47.5K

10K

100V

7

2R

22.1K

R

T13157-14

3R

R20

D

B

33.2K

R6

C8

B1

511

10K

Q1

61R

R5

133K

15A

CR1

G

60V

S

5

1

V DD

16

DZ3

CR1

SET

7

15V

DZ2

2

2

15

X1 -A

1W

27V

X1

RESET

MONO IN

-B

3

X2

14

1

5W

B

B2

R17

4

IN 1

OSC INH

6

1.00K

4

OUT 1

DECODE

13

R12

5

OUT 2

D

12

26.7K

C9

6

8 BY-PASS

C

11

7

10

CLOCK INH

B

D5

8

VSS

9

D8

A

1N4936

3.32K

0

4536B

C2

1

R

C6

22.1K

18

11R

.5

4R

15V

5W

P.C.BOARD IS CONNECTED DIRECTLY

GND

TO FRAME GND THRU MOUNTING SCREW

M16990-2BA

LEAD COLOR CODE

GENERAL INFORMATION

LAST NO. USED

ELECTRICAL SYMBOLS PER E1537

R-

20

B

BLACK

CAPACITORS =

MFD ( .022/50V

UNLESS OTHERWISE SPECIFIED)

LABELS

C-

10

RESISTORS = Ohms (

1/4W

UNLESS OTHERWISE SPECIFIED)

D-

8

Y

YELLOW

DIODES =

1A, 400V

(UNLESS OTHERWISE SPECIFIED)

SUPPLY

VOLTAGE NET

NOTES :

POWER SUPPLY SOURCE POINT

R

RED

N.A.

SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE

COMMON CONNECTION

W

WHITE

WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS DIAGRAM MAY

FRAME CONNECTION

NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING A COMMON CODE

EARTH GROUND CONNECTION

NUMBER.

UNLESS OTHERWISE SPECIFIED TOLERANCE

Ch'ge.Sht.No.

THE LINCOLN ELECTRIC CO.

EQUIP.

CLASSIC SA200

ON HOLES SIZES PER E-2056

10-29-93A

TYPE

ON 2 PLACE DECIMALS IS + .O2

IDLER PCB SCHEMATIC

ON 3 PLACE DECIMALS IS + .OO2

CLEVELAND, OHIO U.S.A.

SUBJECT

ON ALL ANGLES IS + .5 OF A DEGREE

MATERIAL TOLERANCE ("t") TO AGREE

SCALE

NONE

S20334

SHT.

M 16990

AUSTRALIA

CANADA

FRANCE

WITH PUBLISHED STANDARDS

I.E.B.

2/10/93

CHK.

SUP'S'D'G.

DR.

DATE

NO.

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.

CLASSIC I

Image 96

Lincoln Electric SVM134-A service manual Schematic Idler PC Board, 16990 M

Contents

Classic I TM Safety California Proposition 65 Warnings Electric Shock can kill Welding Sparks can cause fire or explosion Iii Précautions DE Sûreté Sûreté Pour Soudage a L’Arc Master Table of Contents for ALL Sections Table of Contents Installation Section Installation Technical Specifications Classic Safety Precautions Location and VentilationStoring PRE-OPERATION Engine Service Cooling System MufflerExhaust Spark Arrester Trailers Machine Grounding Figure A.1 Ground Stud Location Auxiliary Power Receptacle PLUGS, and HAND-HELD Equipment Electrical Output ConnectionsWelding Cable Connections Cable size for combined length Classic Table of Contents Operation Section Safety Instructions OperationOperating Instructions Operational Features and Controls Recommended ApplicationsWelder Generator Controls and Settings WELDER/GENERATOR Controls Control of Welding Current Figure B.2 Current Controls Gasoline Engine Controls Return Section TOC Engine Operation Before Starting the EngineStarting the Engine Stopping the Engine Cold Weather StartingBREAK-IN Period Welding Operation After you finish welding Auxiliary Power Table B.1 Range Settings for Wire SIZE/SPEED Table of Contents Accessories OPTIONS/ACCESSORIES Semiautomatic Welding Accessories Connection of Lincoln Electric Wire Feeders Wire Feed Module see Figure C.1Connection of the LN-25 to Classic I Across the ARC with Classic Table of Contents Maintenance Safety Precautions Routine and Periodic Maintenance Engine Maintenance Figure D.1 OIL Drain and Refill MAX MIN Figure D.2A Engine Coolant Drain Plug After cleaning or when installing a new spark plug Gap Specifications 0.032 inch .8 mmSet the terminal gap with a feeler gauge or gapping Tool. See Figure D.4 Battery Maintenance Classic I charging system is Negative WELDER/GENERATOR Maintenance Return to Section Return to Section TOC Idler Maintenance Figure D.5 Major Component Locations Classic Table of Contents Theory of Operation Section BATTERY, STARTER, Engine Alternator and OIL Switch Circuit Theory of OperationGeneral Description ENGINE, Main Generator Armature and Frame and DC Exciter Excitation FlashingMain SHUNT, Interpole and Series Coils Fine Current Adjustment Current Range SelectorEngine Idler Circuit DC Generator Machines Return to Section TOC Table of Contents Troubleshooting & Repair Section Troubleshooting & Repair HOW to USE Troubleshooting Guide PC Board Troubleshooting Procedures PC Board can be damaged by static electricity Troubleshooting Guide Observe Safety GuidelinesDetailed 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 DC Exciter Test Test DescriptionMaterials Needed Test Procedure DC Exciter Test Figure F.2 Exciter Cover Removal Small Flex Lead Solid Shunt Coil and Series Coil Resistance Tests Idler 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 Method Engine Throttle Adjustment Test Adjust High Idle Adjust Low Idle Flashing the Fields Description Procedure Flashing the Fields Figure F.11 Brush HOLDER/BATTERY Jumper Connections Scope Settings Normal Open Circuit Voltage Waveform 115VDC SupplyHigh 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 Waveform DC Exciter Armature and Field Coils Removal and Replacement DC Exciter Armature Removal Procedure ReassemblyDC Exciter Armature and Field Coils Field Coils Removal Procedure Perform the DC Exciter Armature Removal Procedure Main Generator Frame Removal and Replacement Replacement Main Generator Frame Removal Bolt / NUT Perform the DC Exciter Armature Removal Figure F.16 Selector Switch Lead Removal Terminal Lead Figure 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 Bolts Perform 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 engine DC Auxiliary Power Receptacle Output Retest After RepairEngine Output Welder DC Output Electrical Diagrams Section Electrical Diagrams Wiring Diagram Classic Wire Feed Module Wiring Diagram Wiring Diagram Wire Feed Module Schematic Idler PC Board 16990 M PC Board Assembly Idler PC Board Idler