Page 2 - SAFETY; WARNING; CALIFORNIA PROPOSITION 65 WARNINGS; The Above For Diesel Engines
Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC SAFETY i i MULTI-SOURCE FOR ENGINEpowered equipment. 1.a. Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ___________________________________...
Page 3 - ii; ELECTRIC SHOCK can kill.
Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC SAFETY ii ii MULTI-SOURCE ARC RAYS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks andthe rays of the arc when welding or observingopen arc welding. Headshield...
Page 4 - iii
Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC SAFETY iii iii MULTI-SOURCE FOR ELECTRICALLYpowered equipment. 8.a. Turn off input power using the disconnect switch at the fuse box before working onthe equipment. 8.b. Install equipment in accordance with the U...
Page 5 - iv; PRÉCAUTIONS DE SÛRETÉ
Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC SAFETY iv iv MULTI-SOURCE PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce manuel aussi bien que les pré...
Page 6 - MASTER TABLE OF CONTENTS FOR ALL SECTIONS
MASTER TABLE OF CONTENTS FOR ALL SECTIONS v v MULTI-SOURCE Page Safety .................................................................................................................................................i-iv Installation .....................................................................
Page 7 - TABLE OF CONTENTS
Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC TABLE OF CONTENTS - INSTALLATION SECTION - Section A-1 Section A-1 MULTI-SOURCE Installation ......................................................................................................................S...
Page 8 - INSTALLATION
Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC INSTALLATION A-2 A-2 MULTI-SOURCE TECHNICAL SPECIFICATIONS - Multi-Source K1752-1 PHYSICAL DIMENSIONS TEMPERATURE RANGES...
Page 9 - TILTING; STACKING HOLE; Rear Panel; ELECTRIC SHOCK; FALLING EQUIPMENT
SELECT PROPER LOCATION Place the power supply where clean cooling air canfreely circulate in through the front louvers and outthrough the rear louvers. Dirt, dust or any foreign mate-rial that can be drawn into the welder should be kept ata minimum. Failure to observe these precautions canresult in ...
Page 10 - FUSE AND WIRE SIZES; Note: A qualified electrician should connect the; RECONNECT PROCEDURE; Mount the movable reconnect bar to
INSTALLATION A-4 A-4 MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC FUSE AND WIRE SIZES Protect the input circuit with the super lag fuses ordelay type ci...
Page 11 - OUTPUT CONNECTIONS; PARALLELING; MULTI-SOURCE OUTPUT LIMITATIONS
OUTPUT CONNECTIONS The Multi-Source has two parallel connected outputstuds for positive and negative connections. Each oneis rated to carry the full output current. For its maximumrated current at 100% duty cycle a minimum size of 4/0AWG welding cable is recommended. Connection of Electrode and Work...
Page 12 - NOTES
NOTES A-6 A-6 MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC
Page 13 - Operation
Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC TABLE OF CONTENTS - OPERATION SECTION - Operation ............................................................................................................................... Section B Safety Instructions .......
Page 14 - OPERATION; SAFETY INSTRUCTIONS; electrode with skin or wet clothing.
OPERATION B-2 B-2 MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC SAFETY INSTRUCTIONS ELECTRIC SHOCK can kill.• Do not touch electrically live parts or ele...
Page 15 - GENERAL DESCRIPTION
OPERATION B-3 B-3 MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC GENERAL DESCRIPTION The Multi-Source is designed to supply power to theMulti-Weld welders...
Page 16 - RECOMMENDED EQUIPMENT/CONNECTIONS; DIGITAL METER: Provides the user with; CONTROLS AND SETTINGS
OPERATION B-4 B-4 MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC RECOMMENDED EQUIPMENT/CONNECTIONS The Multi-weld 350 (K1735-1) is the recommended means b...
Page 17 - Accessories
Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC TABLE OF CONTENTS - ACCESSORIES - Accessories ........................................................................................................................... Section C Factory Installed Options/Access...
Page 18 - ACCESSORIES
FACTORY INSTALLED OPTIONS /ACCESSORIES There are no factory installed options. FIELD INSTALLED OPTIONS /ACCESSORIES K1735-1 Multi-Weld 350, Multi-process controller. K857, K857-1 Remote control, Control multi-weld remotely (25 or 100 ft.) K1736-1 Distribution box, Connects up to 10 Multi- Welds. K44...
Page 19 - Maintenance
D-1 D-1 TABLE OF CONTENTS -MAINTENANCE- MULTI-SOURCE Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Maintenance ......................................................................................................................... Section D Safety Precauti...
Page 20 - MAINTENANCE; • Turn the input power OFF at; Perform the following daily:
Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC MAINTENANCE D-2 D-2 MULTI-SOURCE WARNING SAFETY PRECAUTIONS ELECTRIC SHOCK can kill. • Only qualified personnelshould pe...
Page 21 - FIGURE D.1 – MAJOR COMPONENT LOCATION; Case Front Assembly
FIGURE D.1 – MAJOR COMPONENT LOCATION MAINTENANCE D-3 D-3 MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC 1. Case Front Assembly 2. Case back Assembly 3. F...
Page 23 - FIGURE E.1 – MULTI-SOURCE BLOCK LOGIC DIAGRAM; Theory of Operation Section
Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Section E-1 Section E-1 MULTI-SOURCE FIGURE E.1 – MULTI-SOURCE BLOCK LOGIC DIAGRAM LED LED LED DIGITALMETER G Y W CONTROL BOARD THERMOSTAT CONTROL SIGNAL RESISTOR BANK FIRINGBOARD GATE SIGNALS TO CONTROL BOARD SH...
Page 24 - THEORY OF OPERATION; FIGURE E.2 – INPUT VOLTAGE CIRCUIT
GENERAL DESCRIPTION The Multi-Source is designed to supply power to theMulti-Weld Arc Converter welders. The Multi-Sourceis an SCR controlled constant voltage (CV) DC powersupply that can operate with a wide range of threephase input voltages. The machine's peak outputvoltage helps regulate against ...
Page 25 - TROUBLESHOOTING & REPAIR
E-3 E-3 FIGURE E.3 – MAIN TRANSFORMER, CONTROL BOARD, COOLING FAN MOTOR, & LEDs TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Maste...
Page 28 - FIGURE E.5 SCR OPERATION; SCR OPERATION
E-6 E-6 FIGURE E.5 SCR OPERATION TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC SCR OPERATION A silicon controlled rectifier ...
Page 29 - Troubleshooting & Repair Section
Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC TABLE OF CONTENTS -TROUBLESHOOTING & REPAIR SECTION- Troubleshooting & Repair Section ....................................................................................... Section F How to Use Troublesh...
Page 30 - HOW TO USE TROUBLESHOOTING GUIDE; Step 3. PERFORM COMPONENT TESTS
Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC TROUBLESHOOTING & REPAIR F-2 F-2 MULTI-SOURCE HOW TO USE TROUBLESHOOTING GUIDE Service and repair should be performe...
Page 31 - PC BOARD TROUBLESHOOTING PROCEDURES AND REPLACEMENT
ELECTRIC SHOCK can kill. Have an electrician install and ser-vice this equipment. Turn themachine OFF before working on equipment. Do not touch electrically hot parts. Sometimes machine failures appear to be due to PCboard failures. These problems can sometimes betraced to poor electrical connection...
Page 32 - TROUBLESHOOTING GUIDE; CAUTION; OUTPUT PROBLEMS
Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC TROUBLESHOOTING & REPAIR F-4 F-4 MULTI-SOURCE TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginn...
Page 36 - FUNCTIONS PROBLEMS
INSTALLATION F-8 F-8 MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manu...
Page 37 - This procedure takes approximately 30 minutes to perform.
CONTROL TRANSFORMER (T2) VOLTAGE TEST F-9 F-9 MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Service and repair should be performed only by Lincoln Electr...
Page 38 - TEST PROCEDURE
ControlTransformer (T2) X3 H2 H1 X1 F-10 F-10 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC TEST PROCEDURE 1. Disconnect mai...
Page 39 - Voltage
F-11 F-11 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC 6. Carefully apply primary power and test for the correct secondary ...
Page 40 - Thermostat
F-12 F-12 CONTROL TRANSFORMER (T2) VOLTAGE TEST MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC NOTE: If the secondary voltage is not pre-sent at terminal ...
Page 41 - INPUT CONTACTOR TEST; TEST DESCRIPTION
F-13 F-13 INPUT CONTACTOR TEST TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC WARNING Service and repair should be performed ...
Page 42 - Electric Shock can kill.
F-14 F-14 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC INPUT CONTACTOR TEST (Continued) CONTACTOR COIL 240 241 1. Disconnec...
Page 43 - TOP VIEW; FIGURE F.4. INPUT CONTACTOR TEST CONNECTIONS
F-15 F-15 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC T3 T2 T1 U V W TOP VIEW Test Points Test Points Test Points TEST FOR...
Page 45 - This procedure takes approximately 45 minutes to perform.
F-17 F-17 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC MAIN TRANSFORMER (T1) VOLTAGE TEST WARNING Service and repair should...
Page 46 - Input Contactor; Locations; INPUT CONTACTOR
F-18 F-18 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC MAIN TRANSFORMER (T1) VOLTAGE TEST (continued) Reconnect Panel Assem...
Page 47 - Lift Bail; FIGURE F.6. Main Secondary Lead Test Points
F-19 F-19 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC MAIN TRANSFORMER (T1) VOLTAGE TEST (continued) Transformer Secondary...
Page 49 - STATIC SCR TEST
F-21 F-21 STATIC SCR TEST TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC WARNING Service and repair should be performed only ...
Page 50 - FIRING BOARD; Plug J4
F-22 F-22 STATIC SCR TEST (Continued) TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC 1. Remove main supply power to themachin...
Page 51 - Leads
F-23 F-23 STATIC SCR TEST (Continued) TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Leads 4. Using the 9/16” wrench, remove ...
Page 52 - Anode
F-24 F-24 STATIC SCR TEST (Continued) TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC 7. Repeat previous step(s) testing SCR 2...
Page 53 - ACTIVE SCR TEST
F-25 F-25 ACTIVE SCR TEST TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC WARNING Service and repair should be performed only ...
Page 57 - BATTERY TEST
F-29 F-29 ACTIVE SCR TEST (Continued) TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC To test SCRs construct the circuit outli...
Page 59 - CONTROL BOARD TEST
F-31 F-31 CONTROL BOARD TEST TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC WARNING Service and repair should be performed on...
Page 60 - Firing Board
F-32 F-32 CONTROL BOARD TEST (Continued) TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC J1 J2 J3 J5 J6 J8 Firing Board Contro...
Page 61 - ONLY; CONTROL BOARD
F-33 F-33 CONTROL BOARD TEST (Continued) TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC FIGURE F.15. Control Board with LED, ...
Page 63 - FIRING BOARD TEST
F-35 F-35 FIRING BOARD TEST TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC WARNING Service and repair should be performed onl...
Page 64 - TEST PROCEDURE FOR NORMAL
F-36 F-36 FIRING BOARD TEST (Continued) TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC J1 J2 J3 J5 J6 J8 Firing Board Control...
Page 65 - IF; THEN
F-37 F-37 FIRING BOARD TEST (Continued) TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC TABLE F.2. - LED 7, 8 and 9 Check List...
Page 67 - MULTI-SOURCE METER ACCURACY CHECK
F-39 F-39 MULTI-SOURCE METER ACCURACY CHECK TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC WARNING Service and repair should ...
Page 68 - METER ACCURACY CHECK; Control Board
F-40 F-40 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC MULTI-SOURCE METER ACCURACY CHECK (Continued) METER ACCURACY CHECK 1...
Page 69 - NORMAL OPEN CIRCUIT VOLTAGE; Scope Settings
F-41 F-41 NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM - NO LOAD TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC 0 volts 2 ms 50 volts...
Page 70 - ABNORMAL OPEN CIRCUIT VOLTAGE WAVEFORM; volts
F-42 F-42 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC ABNORMAL OPEN CIRCUIT VOLTAGE WAVEFORM ONE OUTPUT SCR NOT FUNCTIONIN...
Page 71 - TYPICAL SCR GATE VOLTAGE WAVEFORM - NO LOAD
F-43 F-43 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC TYPICAL SCR GATE VOLTAGE WAVEFORM - NO LOAD 0 volts 2 ms 1 volt This...
Page 73 - INPUT CONTACTOR CLEANING AND/OR REPLACEMENT; DESCRIPTION; This procedure takes approximately 40 minutes to perform.
F-45 F-45 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC INPUT CONTACTOR CLEANING AND/OR REPLACEMENT WARNING Service and repa...
Page 74 - REMOVAL PROCEDURE
F-46 F-46 INPUT CONTACTOR CLEANING AND/OR REPLACEMENT (Continued) TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC T3 T2 T1 U V...
Page 77 - CONTROL BOARD REPLACEMENT PROCEDURE
F-49 F-49 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC CONTROL BOARD REPLACEMENT PROCEDURE WARNING Service and repair shoul...
Page 78 - CONTROL BOARD REPLACEMENT PROCEDURE (Continued); MOUNTING SCREWS
F-50 F-50 CONTROL BOARD REPLACEMENT PROCEDURE (Continued) TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC J1 J2 J3 J5 J6 J8 Fi...
Page 79 - FIRING BOARD REPLACEMENT PROCEDURE
F-51 F-51 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC FIRING BOARD REPLACEMENT PROCEDURE WARNING Service and repair should...
Page 80 - FIRING BOARD REPLACEMENT PROCEDURE (Procedure)
F-52 F-52 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC FIRING BOARD REPLACEMENT PROCEDURE (Procedure) J1 J2 J3 J5 J6 J8 Fir...
Page 81 - SCR BRIDGE / HEAT SINK ASSEMBLY REPLACEMENT PROCEDURE; This procedure takes approximately 2 Hours to perform.
F-53 F-53 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC SCR BRIDGE / HEAT SINK ASSEMBLY REPLACEMENT PROCEDURE WARNING Servic...
Page 83 - Copper Leads
F-55 F-55 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC SCR BRIDGE / HEAT SINK ASSEMBLY REPLACEMENT PROCEDURE 6. Using a 9/1...
Page 84 - Mounting Bolt
F-56 F-56 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC SCR BRIDGE / HEAT SINK ASSEMBLY REPLACEMENT PROCEDURE 13. Clear all ...
Page 87 - MAXIMUM OPEN CIRCUIT VOLTAGE; Open Circuit Volts; PERFORM METER ACCURACY TEST; RETEST AFTER REPAIR; Maximum Idle Amps
F-59 F-59 TROUBLESHOOTING & REPAIR MULTI-SOURCE Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC MAXIMUM OPEN CIRCUIT VOLTAGE Open Circuit Volts 79.5/80 VDC PERFORM ...
Page 89 - ELECTRICAL DIAGRAMS
MULTI-SOURCE G-1 ELECTRICAL DIAGRAMS G-1 TABLE OF CONTENTS -ELECTRICAL DIAGRAMS SECTION- ELECTRICAL DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SECTION G WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 90 - MULTI-SOURCE WIRING DIAGRAM
ELECTRICAL DIAGRAMS G-2 WIRING DIAGRAM - CONTROL PC BOARD FIRING PC BOARD 283 284 285 286 287 288 2 R3 R4 R5 R6 R7 R8 03 204 205 206 207 208 TO T1AUXILIARIES J1 1 2 3 4 5 6 7 8 9 10 J3 J2 12345678910111213141516 12345678910111213141516 12345678 201261263231202215A230341222A260264235234215B233232 222...
Page 91 - SCHEMATIC - CONTROL PC BOARD
Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC ELECTRICAL DIAGRAMS G-3 SCHEMATIC - CONTROL PC BOARD G-3 NOTE: This diagram is for reference only. It may not be accurat...
Page 92 - PC BOARD ASSEMBLY-CONTROL
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty. Individual Printed Circuit Board Components are not available from Lincoln Electric. This information is pro-vided for reference only....
Page 93 - SCHEMATIC - FIRING PRINTED CIRCUIT BOARD
Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Section TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC ELECTRICAL DIAGRAMS G-5 SCHEMATIC - FIRING PRINTED CIRCUIT BOARD G-5 NOTE: This diagram is for reference only. It may no...
Page 94 - PC BOARD ASSEMBLY-FIRING
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty. Individual Printed Circuit Board Components are not available from Lincoln Electric. This information is pro-vided for reference only....
Page 95 - PC BOARD ASSEMBLY - SNUBBER; C 7; T P 7; C 8; T P 8; O U T P U T S N U B B E R; GND
NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty. Individual Printed Circuit Board Components are not available from Lincoln Electric. This information is pro-vided for reference only....
Page 96 - SVM ERROR REPORTING FORM; Please give detailed description below:
SVM ERROR REPORTING FORM We need to know if there are errors in our manuals. We also value any suggestions as toadditional tests or procedures that would make this SVM a better tool for you. If you discover new or different “Problems or Symptoms” that are not covered in the three col-umn troubleshoo...
Lincoln Electric 305G
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