Lincoln Electric SVM169-A - Manual

Lincoln Electric SVM169-A

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Table of Contents:

  • Page 2 – SAFETY; WARNING; CALIFORNIA PROPOSITION 65 WARNINGS; The Above For Diesel Engines
  • Page 3 – ii; ELECTRIC SHOCK can kill.
  • Page 4 – iii
  • Page 5 – iv; PRÉCAUTIONS DE SÛRETÉ
  • Page 6 – MASTER TABLE OF CONTENTS FOR ALL SECTIONS; RETURN TO MAIN MENU
  • Page 7 – TABLE OF CONTENTS
  • Page 8 – INSTALLATION; 00% Duty Cycle; INPUT - SINGLE PHASE ONLY; Using standard #8-3 input cable for protected
  • Page 9 – PHYSICAL DIMENSIONS; AC or DC; OUTPUT RANGE; Machine Only
  • Page 10 – SAFETY PRECAUTIONS; GRINDING
  • Page 11 – INPUT CONNECTIONS; Technical Specifications
  • Page 12 – INPUT RECONNECT PROCEDURE; CAUTION; FIGURE A.1 Reconnect Leads; OUTPUT CONNECTIONS; FIGURE A.2 Location of Output Connections
  • Page 13 – WORK CABLE CONNECTION; • Keep cylinder away from areas; REMOTE CONTROL CONNECTION; section of
  • Page 14 – NOTES
  • Page 16 – OPERATION; have held combustibles.; INPUT POWER
  • Page 17 – PRODUCT DESCRIPTION; Enhanced version of the patented Micro-; RECOMMENDED PROCESSES; EQUIPMENT LIMITATIONS
  • Page 18 – CONTROL FUNCTIONALITY; • Do not switch the polarity switch; CONTROLS AND SETTINGS
  • Page 19 – PULSE TIG CONTROL –; OPERATING STEPS; WELDING IN TIG MODE
  • Page 20 – REMOTE CONTROL OPERATION
  • Page 21 – WELDING IN STICK MODE; Put the electrode holder and cable quick connect; • In Stick Mode the output terminal; Adjust the Current Control to the desired amps.; RECOMMENDED ELECTRODE AMPERAGE RANGES - PRECISION TIG 185; SMAW Process
  • Page 24 – ACCESSORIES; FACTORY INSTALLED OPTIONS; Water Cooled System
  • Page 25 – FIELD INSTALLED OPTIONS; assemblies and; • K2374-1 Electrode Holder and Cable
  • Page 28 – MAINTENANCE; ROUTINE AND PERIODIC MAINTENANCE; FAN MOTOR OR FAN BLADE REPLACEMENT
  • Page 29 – FIGURE D.2 — LOCATION OF MAINTENANCE COMPONENTS.
  • Page 31 – BLOCK LOGIC DIAGRAM
  • Page 32 – THEORY OF OPERATION; INPUT POWER CIRCUIT; FIGURE E.2 Main Transformer and Input Power; GENERAL DESCRIPTION; Enhanced version of the patented MicroStartTM
  • Page 33 – SCR Operation; FIGURE E.3 Control Board and Output Feedback Control.
  • Page 35 – DC WELDING OUTPUT; FIGURE E.5 DC Welding Current Generation.; CHOKE
  • Page 36 – AC WELDING OUTPUT; wave is developed and applied to the output terminals.; FIGURE E.6 AC Square Wave Welding Current Generation.
  • Page 37 – SCR OPERATION; FIGURE E.7 SCR Operation
  • Page 38 – PROTECTIVE CIRCUITS; THERMAL PROTECTION; If the welder; OVERLOAD PROTECTION
  • Page 39 – Test Procedures
  • Page 40 – TROUBLESHOOTING & REPAIR; The; Step 3. PERFORM COMPONENT TESTS; HIGH VOLTAGE / HIGH FREQUENCY can damage test equipment.
  • Page 41 – PC board can be damaged by static electricity.; PC BOARD TROUBLESHOOTING PROCEDURES
  • Page 42 – TROUBLESHOOTING GUIDE
  • Page 43 – OUTPUT PROBLEMS; T1 Transformer
  • Page 44 – Observe Safety Guidelines
  • Page 46 – TIG MODE PROBLEMS; Reconnect Procedure
  • Page 47 – SCR Bridge Test
  • Page 48 – TIG WELDING PROBLEMS; Maintenance
  • Page 49 – Technical
  • Page 52 – STICK WELDING PROBLEMS
  • Page 53 – TEST DESCRIPTION; This procedure will; MATERIALS NEEDED; /64” Allen type wrench
  • Page 54 – PROCEDURE; Remove input power to the TIG185; Visually check to make; When voltage testing and scope; HIGH FREQUENCY CIRCUIT DISABLE PROCEDURE; LEFT SIDE OF MACHINE; FIGURE F.1 SPARK GAP ASSEMBLY
  • Page 55 – T1 TRANSFORMER TEST; This procedure will determine if; Precision TIG 185 Wiring Diagrams
  • Page 56 – T1 TRANSFORMER; TEST PROCEDURE; Remove main supply power to the
  • Page 57 – Main Transformer and Output
  • Page 59 – This procedure
  • Page 60 – STATIC SCR TEST; PLUG J2 REMOVED; Figure F.3 - Plug J2 Location on Control Board
  • Page 61 – Using an analog ohmmeter test the; FIGURE F.4 SCR TEST POINTS
  • Page 63 – An SCR tester as outlined in this procedure.
  • Page 64 – ACTIVE SCR TEST; FIGURE F.5 ACTIVE SCR TEST SETUP
  • Page 65 – Connect SCR into the test circuit as; FIGURE F.6 SCR GATE LOCATIONS
  • Page 67 – NORMAL OPEN CIRCUIT VOLTAGE WAVEFORM; AC TIG MODE
  • Page 68 – DC TIG MODE
  • Page 69 – AC STICK MODE
  • Page 70 – DC STICK MODE
  • Page 71 – TYPICAL OUTPUT VOLTAGE WAVEFORM - MACHINE LOADED
  • Page 75 – ABNORMAL OPEN CIRCUIT VOLTAGE - DC TIG MODE
  • Page 77 – TROUBLESHOOTING AND REPAIR; Needle nose pliers
  • Page 78 – SCR BRIDGE ASSEMBLY; Remove input power to the TIG 185; FIGURE F.7 CASE BACK MOUNTING SCREWS
  • Page 79 – Remove plug J2 from the control; FIGURE F.8 FRONT PANEL MOUNTING SCREWS
  • Page 80 – FIGURE F.9 PLUG J2 ON CONTROL BOARD; FIGURE F.10 DIODE PIGTAIL CONNECTION TO POLARITY SWITCH LEAD.
  • Page 81 – REPLACEMENT PROCEDURE; Figure
  • Page 83 – Phillips head screwdriver; POLARITY SWITCH
  • Page 84 – REMOVAL PROCEDURE
  • Page 87 – HIGH VOLTAGE TRANSFORMER
  • Page 88 – FIGURE F.11 SECONDARY LEADS AT HIGH FREQUENCY STARTER BOARD
  • Page 89 – Carefully position the new high volt-; FIGURE F.12 HIGH VOLTAGE TRANSFORMER MOUNTING INSULATORS
  • Page 91 – Wire cutters; MAIN TRANSFORMER AND OUTPUT CHOKE ASSEMBLY
  • Page 93 – SCR Bridge
  • Page 95 – RETEST AFTER REPAIR; Maximum Idle Amps
  • Page 98 – ELECTRICAL DIAGRAMS; VOLTAGE RECONNECTION
  • Page 103 – OPPOSITE COMPONENT SIDE
  • Page 104 – SVM ERROR REPORTING FORM; Please give detailed description below:
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PRECISION TIG 185

SVM169-A

July, 2006

Safety Depends on You

Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However,
your overall safety can be
increased by proper installation
. . . and thoughtful operation on
your part.

DO NOT INSTALL,

OPERATE OR REPAIR THIS
EQUIPMENT WITHOUT READ-
ING THIS MANUAL AND THE
SAFETY PRECAUTIONS CON-
TAINED THROUGHOUT.

And,

most importantly, think before
you act and be careful.

SERVICE MANUAL

For use with machines having Code Number : 11105 thru 11109

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• Sales and Service through Subsidiaries and Distributors Worldwide •

Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com

• World's Leader in Welding and Cutting Products •

Copyright © 2006 Lincoln Global Inc.

RETURN TO MAIN MENU

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Summary

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 i SAFETY i PRECISION TIG 185 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 ii SAFETY ii PRECISION TIG 185 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. Heads...

Page 4 - iii

PRECISION TIG 185 SAFETY iii iii Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC Retur n to Master TOC 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 ...

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