Instruction/ maintenance manual of the product SVM151-A Lincoln Electric
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SVM151-A September , 2002 Safety Depends on Y ou Lincoln arc welding and cutting equipment is designed and built with safety in mind. However , your overall safety can be in- creased by proper installation .
i i SAFETY FOR ENGINE powered equipment. 1.a. T urn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ____________________________________________________ 1.b. Operate engines in open, well-ventilated areas or vent the engine exhaust fumes outdoors.
ii ii SAFETY Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ARC RA YS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding.
iii iii SAFETY Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FOR ELECTRICALL Y powered equipment. 8.a. T urn off input power using the disconnect switch at the fuse box before working on the equipment. 8.b. Install equipment in accordance with the U.
iv iv SAFETY Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instructions et les p.
v v - MASTER T ABLE OF CONTENTS FOR ALL SECTIONS - MUL TI-WELD 350 Page Safety .................................................................................................................................................i-iv Installation .........
Installation ................................................................................................................... ..........Section A T echnical Specifications ............................................................................
A-2 A-2 INST ALLA TION MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL SPECIFICA TIONS Amps (DC+) V olts (DC+) Output Rating @ 50°C (122°F) 350 34 Input Rating @ 50°C (122°F) 165 80 Max.
Read this entire installation section before you start installation. SAFETY PRECAUTIONS ELECTRIC SHOCK can kill. • Do not touch electrically live parts or electrodes with your skin or wet clothing. • Insulate yourself from the work and ground. • Always wear dry insulating gloves.
Be sure to follow the safety practice to use the female connector on the cable which would normally be electrically "hot" (supply lead) if disconnected when the system is energized, and the male on the normally “cold” (load lead) side. If practical, shut off power before connecting or disconnecting terminals.
A-5 A-5 INST ALLA TION MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC DAISY CHAIN OPERATION FIXED PARALLEL OPERATION TO WORK TO POWER SOURCE TO WORK TO ELECT.
For Converters (operating at rated output) less than 200 ft. (61 m) from the power source, the following min- imum cable sizes are recommended for the indicated quantity of Converters supplied by the .
Operation ............................................................................................................................... Section B Safety Instructions ...................................................................................
OPERA TING INSTRUCTIONS Read and understand this entire section of operating instructions before operating the machine. SAFETY INSTRUCTIONS ELECTRIC SHOCK can kill. • Do not touch electrically live parts or electrodes with your skin or wet clothing.
PRODUCT DESCRIPTION The Multi-Weld 350 Arc Converter (K1735-1) is part of a Multi-Weld system, ideally suited for construction site welding. It uses a single DC power source as the only input supply a.
Simple • Easy installation with 10 ft. (3 m) work clip lead and user preference quick-connect “pig-tails” for input and electrode weld cables. • Easy setup with only a few intuitive welding controls and lit displays.
REMOTE OUTPUT CONTROL OPTIONS The Multi-Weld 350 is provided with a 6-pin remote receptacle to permit use with the 25 ft.(7.6 m) K857 or 100 ft. (30.4 m) K857-1 Remote Output Control options. The remote receptacle can also be used with the LN-25 equipped with the K444-1 Remote Control option.
FRONT P ANEL CONTROLS The numbered items of Figure B.2 match the num- bered items described below: These few instruments and controls are basic to the operation and monitoring of the Converter .
Average AMPS for about 7 seconds after welding stops in CC and CV modes only . • The 5 second memory display is indicated by the display’s left-most decimal point blinking, and is interrupted if arc is restarted. Accuracy of Actual AMPS is within 3%, and typical- ly within 10 amps of Preset.
Disconnecting the Remote plug from this recepta- cle automatically transfers output control back to the panel Output Control (item (2) above). Remote output On/Off switching can also be done through this Remote Control receptacle by per- forming the following wiring changes: 1.
TRANSPORTING The Converter may be carried by one or two persons using the front and rear top and bottom handles. It can also be set vertically on a two wheel cart, or horizon- tally on a wagon, to move it longer distances.
B-10 B-10 NOTES MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master.
Accessories .................................................................................................................... ......Section C Options/Accessories ......................................................................................
OPTIONS/ACCESSORIES The following options/accessories are available for your Multi-Weld 350 from your local Lincoln Distributor . FIELD INST ALLED OPTIONS K1736-1 DISTRIBUTION BOX - Makes connecting up to 10 Multi-Weld 350s quick and easy . Contains cop- per bus bar for connecting multiple “ pig-tails.
CONNECTION OF THE LN-25 TO THE MUL TI-WELD 350 “ACROSS THE ARC” (SEE FIGURE C.1.) 1. Shut the welder off. 2. Connect the electrode cable from the LN-25 to the “ + ” terminal of the welder . NOTE: Welding cable must be sized for current and duty cycle of application.
C-4 C-4 NOTES MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master T.
Maintenance .................................................................................................................... ......Section D Safety Precautions .......................................................................................
SAFETY PRECAUTIONS ELECTRIC SHOCK can kill. • Do not touch electrically live parts or electrode with skin or wet clothing. • Insulate yourself from work and ground. • Always wear dry insulating gloves. Have qualified personnel do the maintenance work.
SER VICE The Multi-Weld 350 was designed for easy service using quick-to-replace components and assembly modules that can be simply swapped out at the job site to minimize down time. More prolonged troubleshoot- ing and repair of the module may be done later on the service bench.
D-4 D-4 NOTES MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master T.
General Description .......................................................................................................................E-2 Input Power Source, Contactor and DC Buss Power Supply Board ..........................................E-2 Power Modules and Feedback .
GENERAL DESCRIPTION The MUL TI-WELD 350 Converter uses a single DC input power source to provide up to 350 continuous amps for positive polarity stick, wire processes, and arc-air gouging. The machine converts higher volt- age/lower current DC input power to lower voltage/higher current DC output power with over 90% efficiency .
POWER MODULES AND FEED- BACK The external DC source voltage is applied to parallel capacitors incorporated within each of the two Power (Chopper) Modules. These capacitors function as fil- ters and as power supplies for the IGBT s. See IGBT Operation in this section.
ANALOG CONTROL POWER SUPPL Y BOARD AND WELD CONTROL BOARD The Analog Control Power Supply Board, which is pow- ered by 40 VDC delivered from the DC Buss Power Supply Board, supplies various regulated DC voltages to operate the Weld Control Board circuitry .
MODE SELECT OR AND OUTPUT CONTROLS In CC mode, machine output is at open circuit voltage. The OUTPUT control presets amps in the 30 to 350 A range and then adjusts actual welding current to match the preset when welding. In CV mode, machine output is at the voltage level set at the OUTPUT control.
PROTECTION FEA TURES The Multi-Weld 350 design features electronic protec- tion systems to help assure reliable operation even under adverse conditions. These systems include: F AN AS NEEDED (F .A.N.) The cooling fan will turn on when the arc starts and remain on for about a minute after the arc is out to cool down the power components.
INSULA TED GA TE BIPOLAR TRANSIST OR (IGBT) OPERA TION An IGBT is a type of transistor . IGBT s are semicon- ductors well suited for high frequency switching and high current applications. Drawing A shows an IGBT in a passive mode. There is no gate signal, zero volts relative to the source, and therefore, no current flow .
PULSE WIDTH MODULA TION The term PULSE WIDTH MODULA TION is used to describe how much time is devoted to conduction in the cycle. Changing the pulse width is known as MODU- LA TION. Pulse Width Modulation (PWM) is the varying of the pulse width over the allowed range of a cycle to affect the output of the machine.
CHOPPER TECHNOLOGY FUNDAMENT ALS The new era of welding machines such as the Multi- Weld 350 employ a technology whereby a DC source is turned on and off (chopped up) at high speed, then smoothed through an inductor to control an arc. Hence the name “ Chopper .
E-10 E-10 NOTES MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master.
T roubleshooting & Repair Section ......................................................................................Section F How to Use T roubleshooting Guide ...................................................................................
This T roubleshooting Guide is provided to help you locate and repair possible machine malfunc- tions. Simply follow the three-step procedure list- ed below . Step 1. LOCA TE PROBLEM (SYMPTOM). Look under the column labeled “ PROBLEM ” (SYMP- TOMS).
ELECTRIC SHOCK can kill. Have an electrician install and service this equipment. T urn the machine OFF before working on equipment. Do not touch electrically hot parts. Sometimes machine failures appear to be due to PC board failures. These problems can sometimes be traced to poor electrical connections.
Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual. CAUTION If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed.
TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. CAUTION If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed.
Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual. CAUTION If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed.
TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. CAUTION If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed.
Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual. CAUTION If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed.
TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. CAUTION If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed.
Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual. CAUTION If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed.
TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. CAUTION If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed.
Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual. CAUTION If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely , contact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed.
TROUBLESHOOTING & REP AIR F-13 F-13 MUL TI-WELD 350 CASE COVER ASSEMBL Y REMOV AL AND REPLACEMENT PROCEDURE W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel.
TROUBLESHOOTING & REP AIR F-14 F-14 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas.
TROUBLESHOOTING & REP AIR F-15 F-15 MUL TI-WELD 350 POWER MODULE CAP ACITOR DISCHARGE PROCEDURE W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel.
TROUBLESHOOTING & REP AIR F-16 F-16 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas.
TROUBLESHOOTING & REP AIR F-17 F-17 MUL TI-WELD 350 INPUT CONT ACTOR COIL RESIST ANCE AND SUPPL Y VOL T AGE TEST W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel.
TROUBLESHOOTING & REP AIR F-18 F-18 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC LEADS #303A #330 FIGURE F .
TROUBLESHOOTING & REP AIR F-19 F-19 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INPUT CONT ACTOR COIL RESIST ANCE AND SUPPL Y VOL T AGE TEST (CONTINUED) ELECTRIC SHOCK can kill.
TROUBLESHOOTING & REP AIR F-20 F-20 MUL TI-WELD 350 ANALOG CONTROL POWER SUPPL Y PC BOARD TEST W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty .
TROUBLESHOOTING & REP AIR F-21 F-21 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas.
TROUBLESHOOTING & REP AIR F-22 F-22 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC T ABLE F .
TROUBLESHOOTING & REP AIR F-23 F-23 MUL TI-WELD 350 DC BUSS POWER SUPPL Y PC BOARD TEST W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty .
TROUBLESHOOTING & REP AIR F-24 F-24 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas.
TROUBLESHOOTING & REP AIR F-25 F-25 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC DC BUSS POWER SUPPL Y PC BOARD TEST (CONTINUED) 8.
TROUBLESHOOTING & REP AIR F-26 F-26 MUL TI-WELD 350 CHOPPER PC BOARD INPUT VOL T AGES AND RESIST ANCE TEST W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel.
TROUBLESHOOTING & REP AIR F-27 F-27 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas.
TROUBLESHOOTING & REP AIR F-28 F-28 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CHOPPER PC BOARD INPUT VOL T AGES AND RESIST ANCE TEST (CONTINUED) T est Procedure for the Left Side Power Module 1.
Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-29 F-29 MUL TI-WELD 350 This is the typical CC open circuit out- put voltage generated from a properly operating machine.
Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-30 F-30 MUL TI-WELD 350 This is the typical CV output voltage generated from a properly operating machine.
Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-31 F-31 MUL TI-WELD 350 This is the typical CC output voltage generated from a properly operating machine.
Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP A.
Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-33 F-33 MUL TI-WELD 350 This is the typical CV open circuit out- put voltage generated from a properly operating machine.
TROUBLESHOOTING & REP AIR F-34 F-34 MUL TI-WELD 350 CASE FRONT ASSEMBL Y REMOV AL AND REPLACEMENT W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel.
TROUBLESHOOTING & REP AIR F-35 F-35 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas.
TROUBLESHOOTING & REP AIR F-36 F-36 MUL TI-WELD 350 WELD CONTROL OR PERIPHERAL PC BOARD REMOV AL AND REPLACEMENT W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel.
TROUBLESHOOTING & REP AIR F-37 F-37 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas.
TROUBLESHOOTING & REP AIR F-38 F-38 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC WELD CONTROL OR PERIPHERAL PC BOARD REMOV AL AND REPLACEMENT (CONTINUED) 7.
TROUBLESHOOTING & REP AIR F-39 F-39 MUL TI-WELD 350 AMPS/VOL TS DIGIT AL METER AND POTENTIOMETER REMOV AL AND REPLACEMENT W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel.
TROUBLESHOOTING & REP AIR F-40 F-40 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas.
TROUBLESHOOTING & REP AIR F-41 F-41 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC AMPS/VOL TS DIGIT AL METER AND POTENTIOMETER REMOV AL AND REPLACEMENT (CONTINUED) 7.
TROUBLESHOOTING & REP AIR F-42 F-42 MUL TI-WELD 350 INPUT CONT ACTOR REMOV AL AND REPLACEMENT W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty .
TROUBLESHOOTING & REP AIR F-43 F-43 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas.
TROUBLESHOOTING & REP AIR F-44 F-44 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INPUT CONT ACTOR REMOV AL AND REPLACEMENT (CONTINUED) 7.
TROUBLESHOOTING & REP AIR F-45 F-45 MUL TI-WELD 350 INPUT DIODE REMOV AL AND REPLACEMENT W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty .
TROUBLESHOOTING & REP AIR F-46 F-46 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas.
TROUBLESHOOTING & REP AIR F-47 F-47 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INPUT DIODE REMOV AL AND REPLACEMENT (CONTINUED) 10.
TROUBLESHOOTING & REP AIR F-48 F-48 MUL TI-WELD 350 F AN MOTOR ASSEMBL Y REMOV AL AND REPLACEMENT W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel.
TROUBLESHOOTING & REP AIR F-49 F-49 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC MO TOR LEADS #303A #330 F AN MO TOR SCREWS (2 ) FIGURE F .
TROUBLESHOOTING & REP AIR F-50 F-50 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F AN MOTOR ASSEMBL Y REMOV AL AND REPLACEMENT (CONTINUED) 3.
TROUBLESHOOTING & REP AIR F-51 F-51 MUL TI-WELD 350 POWER CAP ACITOR REMOV AL AND REPLACEMENT W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty .
TROUBLESHOOTING & REP AIR F-52 F-52 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas.
TROUBLESHOOTING & REP AIR F-53 F-53 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC POWER CAP ACITOR REMOV AL AND REPLACEMENT (CONTINUED) 7.
TROUBLESHOOTING & REP AIR F-54 F-54 MUL TI-WELD 350 CHOPPER PC BOARD AND DIODE MODULE REMOV AL AND REPLACEMENT W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel.
TROUBLESHOOTING & REP AIR F-55 F-55 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas.
TROUBLESHOOTING & REP AIR F-56 F-56 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC CHOPPER PC BOARD REMOV AL AND REPLACEMENT (CONTINUED) 3.
TROUBLESHOOTING & REP AIR F-57 F-57 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas.
TROUBLESHOOTING & REP AIR F-58 F-58 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC DIODE MODULE REMOV AL AND REPLACEMENT (CONTINUED) 3.
TROUBLESHOOTING & REP AIR F-59 F-59 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SPRING WASHER PLAIN WASHER 2 TO 3 TURNS EACH FINGER TIGHT 5.
TROUBLESHOOTING & REP AIR F-60 F-60 MUL TI-WELD 350 Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Mas.
G-1 ELECTRICAL DIAGRAMS G-1 T ABLE OF CONTENTS -ELECTRICAL DIAGRAMS SECTION- ELECTRICAL DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SECTION G WIRING DIAGRAM . . . . . . . . . .
ELECTRICAL DIAGRAMS G-2 MUL TI-WELD 350 WIRING DIAGRAM - MUL TI-WELD 350 9-17-99A G3676 MULTI-WELD 350 WIRING DIAGRAM REMOTE RECEPT ACLE ARC FORCE FA N (LEFT) (RIGHT) L1 L2 CHOPPER PCB (LEFT) CHOPPER .
Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-3 MUL TI-WELD 350 SCHEMA TIC - CONTROL PC BOARD #1 G-3 NOTE: This diagram is for reference only .
Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-4 MUL TI-WELD 350 SCHEMA TIC - CONTROL PC BOARD #2 G-4 NOTE: This diagram is for reference only .
Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-5 MUL TI-WELD 350 SCHEMA TIC - CONTROL PC BOARD #3 G-5 NOTE: This diagram is for reference only .
Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-6 MUL TI-WELD 350 SCHEMA TIC - CONTROL PC BOARD #4 G-6 NOTE: This diagram is for reference only .
ELECTRICAL DIAGRAMS G-7 MUL TI-WELD 350 SCHEMA TIC - CONTROL PC BOARD #5 G-7 NOTE: This diagram is for reference only . It may not be accurate for all machines covered by this manual.
SOLID EDGE EN-170 MA NUF ACT URING T OLE RAN CE PE R E20 56 UNLESS OT HERWIS E SP EC I FIED T OLER ANCE SCALE: DO N OT SCA LE T HIS DRAW ING ON 3 PLACE DECIMALS IS ± .
Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-9 MUL TI-WELD 350 SCHEMA TIC - PERIPHERAL PRINTED CIRCUIT BOARD G-9 NOTE: This diagram is for reference only .
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.
ELECTRICAL DIAGRAMS G-11 MUL TI-WELD 350 SCHEMA TIC - POWER PRINTED CIRCUIT BOARD G-11 NOTE: This diagram is for reference only . It may not be accurate for all machines covered by this manual.
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.
Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-13 MUL TI-WELD 350 SCHEMA TIC - ANALOG PRINTED CIRCUIT BOARD G-13 NOTE: This diagram is for reference only .
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.
Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-15 MUL TI-WELD 350 SCHEMA TIC - BY -P ASS PRINTED CIRCUIT BOARD G-15 NOTE: This diagram is for reference only .
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.
Return to Section TOC Retur n to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRICAL DIAGRAMS G-17 MUL TI-WELD 350 SCHEMA TIC - CHOPPER PRINTED CIRCUIT BOARD 50V 0.
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.
SVM ERROR REPORTING FORM We need to know if there are errors in our manuals. W e also value any suggestions as to additional tests or procedures that would make this SVM a better tool for you.
An important point after buying a device Lincoln Electric SVM151-A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lincoln Electric SVM151-A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lincoln Electric SVM151-A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lincoln Electric SVM151-A you will learn all the available features of the product, as well as information on its operation. The information that you get Lincoln Electric SVM151-A will certainly help you make a decision on the purchase.
If you already are a holder of Lincoln Electric SVM151-A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lincoln Electric SVM151-A.
However, one of the most important roles played by the user manual is to help in solving problems with Lincoln Electric SVM151-A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lincoln Electric SVM151-A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
