Lincoln Electric IM536-D Operator's Manual
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Lincoln Electric IM536-D Operator's Manual

Lincoln electric welder user manual
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For use with machine Code Numbers
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 thought-
ful operation on your part. DO
NOT INSTALL, OPERATE OR
REPAIR THIS EQUIPMENT
WITHOUT
READING
MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED
THROUGHOUT. And, most
importantly, think before you act
and be careful.
Date of Purchase:
Serial Number:
Code Number:
Model:
Where Purchased:
ISO 9001
ANSI RAB
QMS
Designed and Manufactured Under a
Quality Program Certified by
ABS Quality Evaluations, Inc.
to ISO 9001 Requirements.
CERTIFICATE NUMBER: 30273
• 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
RETURN TO MAIN MENU
SP- 125 PLUS
10260, 10481,10685,10689,10690,10740
THIS
OPERATOR'S MANUAL
• World's Leader in Welding and Cutting Products •
Copyright © 2001 Lincoln Global Inc.
IM536-D
March, 2001

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  • Page 1 • World's Leader in Welding and Cutting Products • • 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 RETURN TO MAIN MENU SP- 125 PLUS 10260, 10481,10685,10689,10690,10740 Copyright © 2001 Lincoln Global Inc. IM536-D March, 2001...

  • Page 2: California Proposition 65 Warnings

    351040, Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is available from the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199. BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND REPAIR PROCEDURES ARE PERFORMED ONLY BY QUALIFIED INDIVIDUALS.

  • Page 3: Electric Shock Can Kill

    ELECTRIC SHOCK can kill. 3.a. The electrode and work (or ground) circuits are electrically “hot” when the welder is on. Do not touch these “hot” parts with your bare skin or wet clothing. Wear dry, hole-free gloves to insulate hands.
  • Page 4 WELDING SPARKS can cause fire or explosion. 6.a. Remove fire hazards from the welding area. If this is not possible, cover them to prevent the welding sparks from starting a fire. Remember that welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas.
  • Page 5 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 précautions de sûreté générales suiv- antes: Sûreté Pour Soudage A L’Arc 1. Protegez-vous contre la secousse électrique: a.
  • Page 6 This statement appears where the information must be followed to avoid minor personal injury or damage to this equipment. SP-125 PLUS for selecting a QUALITY product by Lincoln Electric. We want you to take pride in operating this Lincoln Electric Company product ••• as much pride as we have in bringing this product to you!

  • Page 7: Table Of Contents

    TABLE OF CONTENTS Installation ...Section A Technical Specifications ...A-1 Identify and Locate Components ...A-2 Select Suitable Location ...A-3 Output Connections ...A-3 Input Connections...A-5 Code Requirements ...A-6 Operation ...Section B Safety Precautions ...B-1 General Description ...B-2 Design Features and Advantages...B-2 Welding Capability ...B-2 Limitations ...B-2 Controls and Settings...B-2 Welding Operations ...B-3...
  • Page 8 SP-125 PLUS...

  • Page 9: Installation

    TECHNICAL SPECIFICATIONS – SP-125 Plus Standard Voltage/Frequency 115V/60Hz 115V/60Hz 115V/60Hz Duty Cycle 20% Duty Cycle – Rated DC Output 20% Duty Cycle - CSA Rated Output Welding Current Range (Continuous) Maximum Open Circuit Voltage Rated DC Output: 0 - 90 amps CSA Rated DC Output: 0 - 63 amps Useable Amperage Range RECOMMENDED INPUT CABLE AND FUSE SIZES...

  • Page 10: Safety Precautions

    Read entire installation section before starting installation. SAFETY PRECAUTIONS WARNING ELECTRIC SHOCK can kill. • Only qualified personnel should perform this installation. • Only personnel that have read and under- stood the SP-125 Plus Operating Manual should install and operate this equipment. •...

  • Page 11: Tilting

    SELECT SUITABLE LOCATION Locate the welder in a dry location where there is free circulation of clean air into the louvers in the back and out the front of the unit. A location that minimizes the amount of smoke and dirt drawn into the rear louvers reduces the chance of dirt accumulation that can block air passages and cause overheating.

  • Page 12: Gun Installation

    ACCESSORIES section. CYLINDER may explode if dam- aged. Keep cylinder upright and chained to support • Keep cylinder away from areas • Never lift welder with cylinder • Never allow welding electrode to • Keep cylinder away from welding CAUTION WARNING where it may be damaged.

  • Page 13: Input Connections

    WARNING BUILDUP OF SHIELDING GAS may harm health or kill. • Shut off shielding gas supply when not in use. • SEE AMERICAN NATIONAL STANDARD Z-49.1, “SAFETY IN WELDING AND CUTTING” PUB- LISHED BY THE AMERICAN WELDING SOCIETY. 1. Chain the cylinder to a wall or other stationary sup- port to prevent the cylinder from falling over.

  • Page 14: Code Requirements

    CODE REQUIREMENTS FOR INPUT CONNECTIONS WARNING This welding machine must be connected to power source in accordance with applicable elec- trical codes. The United States National Electrical Code (Article 630-B, 1990 Edition) provides standards for amperage handling capability of supply conductors based on duty cycle of the welding source.

  • Page 15: Electric Shock Can Kill

    OPERATION Read entire Operation section before operating the SP-125 Plus. WARNING 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.

  • Page 16: Operation

    GENERAL DESCRIPTION The SP-125 Plus is a complete semiautomatic con- stant voltage DC arc welding machine. Included is a solid state controlled, single phase constant voltage transformer/ rectifier power source and a wire feeder for feeding solid steel electrode and cored electrode. The SP-125 Plus is ideally suited for individuals hav- ing access to 115 volt AC input power, and wanting the ease of use, quality and dependability of both gas...

  • Page 17: Welding Operations

    WELDING AMP RANGE 25-125 SP-125 Plus FIGURE B.1a Refer to Figure B.1b 4. Circuit Breaker – Protects machine from damage if maximum output is exceeded. Button will extend out when tripped (Manual reset). 5. Optional K695-2 Spot/Stitch Controls (see ACCES- SORIES section) - If present, replaces Blank Panel Assembly located on the center panel inside the case door:...
  • Page 18 FIGURE B.3 Wire Spindle Shaft To wire drive Note: The brake should be adjusted with a spool of wire installed. When properly adjusted it should move freely but not coast. Friction Brake Adjustments 1. With wire spool installed, check free movement and coast of the spool.
  • Page 19 FIGURE B.5 Gun Handle Gas Diffuser Contact Tip Gas Nozzle Shielding Gas When using the GMAW process, a cylinder of shield- ing gas, must be obtained. Refer to the ACCES- SORIES section for more information about selecting gas cylinders for use with the SP-125 Plus. 1.

  • Page 20: Process Guidelines

    9. To stop welding, release the gun trigger and then pull the gun away from the work after the arc goes out. 10. When no more welding is to be done, close valve on gas cylinder (if used), momentarily operate gun trigger to release gas pressure, and turn off the SP-125 Plus.

  • Page 21: Overload Protection

    OPERATION OVERLOAD PROTECTION Output Overload The SP-125 Plus is equipped with a circuit breaker which protects the machine from potential damage from excessive output current. The circuit breaker but- ton will extend out when tripped. The circuit breaker must be manually reset. Thermal Protection The SP-125 Plus duty cycle is exceeded a thermostat will shut off the output until the machine cools to a nor-...

  • Page 22: Learning To Weld

    LEARNING TO WELD No one can learn to weld simply by reading about it. Skill comes only with practice. The following pages will help the inexperienced operator to understand weld- ing and develop this skill. For more detailed informa- tion, order a copy of “New Lessons in Arc Welding” listed at the end of this manual.

  • Page 23: The Gmaw (Mig) Welding Arc

    The “arc stream” is seen in the middle of the picture. This is the electric arc created by the electric current flowing through the space between the end of the wire electrode and the base metal. The temperature of this arc is about 6000°F, which is more than enough to melt metal.

  • Page 24: Joint Types And Positions

    B-10 2. Can I afford the extra expense, space, and lack of portability required for gas cylinders and gas sup- ply? 3. Do I require clean, finished-looking welds? If you have answered yes to all the above questions GMAW may be the process for you. If you have answered no to any of the above questions, then you should consider using the FCAW process.
  • Page 25 FIGURE B.12 Penetration Unless a weld penetrates close to 100% of the metal thickness, a butt weld will be weaker than the material welded together. In the example shown in Figure B.13, the total weld is only half the thickness of the material thus the weld is only approximately half as strong as the metal.

  • Page 26: Machine Set Up For The Self-Shielded Fcaw Process

    B-12 PROPER GUN ANGLE PROPER GUN ANGLE FOR GMAW PROCESS FOR FCAW PROCESS WELDING IN THE VERTICAL UP POSITION WELDING IN THE VERTICAL UP POSITION FIGURE B.16 Vertical-down Welding Refer to Figure B.17 Vertical-down welds are applied at a fast pace. These welds are therefore shallow and narrow and, as such, are excellent for sheet metal.
  • Page 27 FIGURE B.18 WARNING ARC RAYS can burn eyes and skin. When using an open arc process, it Is necessary to use correct eye, head and body protection. Protect yourself and others, read “ARC RAYS can burn” at the front of this manual. 2.
  • Page 28 B-14 Helpful Hints 1. For general welding, it is not necessary to weave the arc, neither forward or backward nor sideways. Weld along at a steady pace. You will find it easier. 2. When welding on thin plate, you will find that you will have to increase the welding speed, whereas when welding on heavy plate, it is necessary to go more slowly in order to get good penetration.

  • Page 29: Machine Set Up For The Gmaw (Mig) Process

    MACHINE SET UP FOR THE GMAW (MIG) PROCESS 1. See PROCESS GUIDELINES in the OPERATION section for selection of welding wire and shielding gas, and for range of metal thicknesses that can be welded. 2. See the Application Guide on the inside of wire feed section door for information on setting the controls.
  • Page 30 B-16 Contact Tip Wire Electrode FIGURE B.24 3. The Correct Electrical Stickout (ESO) The electrical stickout (ESO) is the distance from the end of the contact tip to the end of the wire. See Figure B.24. Once the arc has been established, maintaining the correct ESO becomes extremely important.

  • Page 31: Troubleshooting Welds

    4. After you strike the arc, practice the correct electri- cal stickout. Learn to distinguish it by its sound. 5. When you are sure that you can hold the correct electrical stickout, with a smooth “crackling” arc, start moving. Look at the molten puddle constantly. 6.
  • Page 32 B-18 Proper Gun Handling Most feeding problems are caused by improper han- dling of the gun cable or electrodes. 1. Do not kink or pull the gun around sharp corners 2. Keep the gun cable as straight as practical when welding.

  • Page 33: Application Chart

    B-19 APPLICATION CHART SP-125 PLUS...

  • Page 34: Optional Accessories

    Weld shielding gas may be obtained from a weld- ing supply distributor. Also included is a gas hose which connects to the rear of the welder. See “Gas Connection” in Installation section for installation instructions. 3. K1799-1 Argon-Mixed Gas Adjustable...

  • Page 35: Replacement Parts

    INNERSHIELD (FCAW) CONVERSION Several changes are needed to convert the unit for operation with the Innershield (FCAW) process. The K549-1 Innershield Kit includes all the necessary accessories for this conversion and are provided for this purpose. The following conversions should be made using the contents of this kit: 1.

  • Page 36: Maintenance

    Excessive pressure at start may cause the dirt to form a plug. PERIODICALLY AS REQUIRED • Blow dirt out of the welder with low pressure air to eliminate excessive dirt and dust buildup that could cause welder to run hot.

  • Page 37: Gun And Cable Maintenance

    GUN AND CABLE MAINTENANCE FOR MAGNUM™ 100L GUN Gun Cable Cleaning Clean cable liner after using approximately 300 lbs (136 kg) of solid wire or 50 lbs (23 kg) of flux-cored wire. Remove the cable from the wire feeder and lay it out straight on the floor.

  • Page 38: Component Replacement Procedures

    COMPONENT REPLACEMENT PROCEDURES CHANGING THE CONTACT TIP 1. Unplug or turn power switch to Off “O” position. 2. Refer to Figure D.2. Remove the gas nozzle from the gun by unscrewing counter-clockwise. 3. Remove the existing contact tip from the gun by unscrewing counter-clockwise.

  • Page 39: Changing Liner

    Gas Diffuser Slotted Brass Cable Contact Tip (Threaded) Set Screw Connector Gas Nozzle or Gasless Nozzle (Threaded) Liner Assembly (Liner bushing to be seated tight against brass cable connector) FIGURE D.2 Liner trim length for gun with red trigger (Magnum™ 100L) MAINTENANCE CHANGING LINER NOTICE: The variation in cable lengths pre-...

  • Page 40: Gun Handle Parts

    MAINTENANCE GUN HANDLE PARTS The gun handle consists of two halves that are held together with a collar on each end. To open up the handle, turn the collars approximately 60 degrees counter-clockwise until the collar reaches a stop. Then pull the collar off the gun handle.

  • Page 41: Troubleshooting

    HOW TO USE TROUBLESHOOTING GUIDE Service and Repair should only be performed by Lincoln Electric Factory Trained Personnel. Unauthorized repairs performed on this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical Shock, please observe all safety notes and precautions detailed throughout this manual.

  • Page 42: Troubleshooting Guide

    - Fan operates normally. If for any reason you do not understand the test procedures or are unable to Perform the tests/repairs safely, contact your LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed. SP-125 PLUS TROUBLESHOOTING...
  • Page 43 If for any reason you do not understand the test procedures or are unable to Perform the tests/repairs safely, contact your LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed. TROUBLESHOOTING TROUBLESHOOTING GUIDE...
  • Page 44 Arc is unstable – Poor starting If for any reason you do not understand the test procedures or are unable to Perform the tests/repairs safely, contact your LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed. TROUBLESHOOTING...

  • Page 45: Wiring Diagrams

    WIRING DIAGRAMS SP-125 PLUS WIRING DIAGRAM: CODE 10260, 10481 NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside the machine on one of the enclosure panels. SP-125 PLUS...
  • Page 46 NOTES SP-125 PLUS...
  • Page 47 NOTES SP-125 PLUS...
  • Page 48 Address: Telephone: _______________________________________________ |_|_| |_|_| Exp Date Month BOOK DIVISION, The Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199 for fastest service, FAX this completed form to: 216-361-5901 Telephone: 216-383-2211 or, Titles: Price New Lessons in Arc Welding $5.00...
  • Page 49 ● WARNING ● Spanish ● AVISO DE PRECAUCION ● French ● ATTENTION ● ● German WARNUNG ● Portuguese ● ATENÇÃO ● Japanese Chinese Korean Arabic ● ● ● ● ● ● ● ● ● ●...
  • Page 50 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Spanish ● PRECAUCION French ● ATTENTION German ● WARNUNG Portuguese ● ● Japanese Chinese Korean Arabic WARNING AVISO DE ATENÇÃO...
  • Page 51 • World's Leader in Welding and Cutting Products • • 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...

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