Lincoln Electric SP-175 PLUS IM790 Operator's Manual
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Lincoln Electric SP-175 PLUS IM790 Operator's Manual

Lincoln Electric SP-175 PLUS IM790 Operator's Manual

Lincoln electric welder user manual
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RETURN TO MAIN MENU
IM790
SP- 175 Plus
March, 2005
10976
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
THIS
MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED
THROUGHOUT. And, most
importantly, think before you act
and be careful.
OPERATOR'S MANUAL
Copyright © 2005 Lincoln Global Inc.
• 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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Summary of Contents for Lincoln Electric SP-175 PLUS IM790

  • Page 1 RETURN TO MAIN MENU IM790 SP- 175 Plus March, 2005 10976 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 ...

  • 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 The code number is especially important when identifying the correct replacement parts. - Register your machine with Lincoln Electric either via fax or over the Internet. • For faxing: Complete the form on the back of the warranty statement included in the literature packet accompanying this machine and fax the form per the instructions printed on it.

  • Page 7: 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 Overload Protection ...B-7...

  • Page 8: Installation

    TECHNICAL SPECIFICATIONS – SP-175 Plus Standard Voltage/Frequency 230V/60Hz 208V/60Hz Duty Cycle 30% Duty Cycle @ 230V/60Hz 25% Duty Cycle @ 208V/60Hz Welding Current Range Rated DC Output: 30 – 175 amps RECOMMENDED INPUT CABLE AND FUSE SIZES Output Mode Input Voltage RATED 230V/60Hz 208V/60Hz...

  • Page 9: 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-175 Plus Operating Manual should install and operate this equipment. •...

  • Page 10: 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 left side and out the front of the unit. A location that minimizes the amount of smoke and dirt drawn into the louvers reduces the chance of dirt accumulation that can block air passages and cause overheating.

  • Page 11: Gun Installation

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

  • Page 12: Input Connections

    WARNING • Keep cylinder away from welding or other live electrical circuits. 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.

  • Page 13: Code Requirements

    230 Volt Input Connection The SP-175 Plus is shipped from the factory connect- ed for 230 volt input power. If the welder has been reconnected for 208 volt input power and 230 volt input is desired, perform the following reconnection instructions: 1.

  • Page 14: Operation

    Read entire Operation section before operating the SP-175 Plus. Observe all safety information throughout this manual. OPERATION WARNING ELECTRIC SHOCK can kill. • Do not touch electrically live parts or electrode with skin or wet clothing. Insulate yourself from work and ground. •...

  • Page 15: General Description

    GENERAL DESCRIPTION The SP-175 Plus is a complete semiautomatic constant volt- age DC arc welding machine. Included is a continuous con- trolled, single phase constant voltage transformer/rectifier power source and a wire feeder with welding gun for feeding .023” (0.6 mm) through .035” (0.9 mm) solid steel electrode. Optional kits are available for .035”...

  • Page 16: Welding Operations

    WELDING AMP RANGE 25-125 SP-175 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). FIGURE B.1b OPERATION WELDING OPERATIONS SEQUENCE OF OPERATION Wire Loading Refer to Figure B.2 and B.3.
  • Page 17 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 18 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-175 Plus. Be sure to observe all cylinder handling and use precau- tions.

  • Page 19: Welding With Fcaw

    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-175 Plus.

  • Page 20: Overload Protection

    OPERATION OVERLOAD PROTECTION Output Overload The SP-175 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-175 Plus duty cycle is exceeded a thermostat will shut off the output until the machine cools to a nor-...

  • Page 21: Application Chart

    APPLICATION CHART SP-175 PLUS...

  • Page 22: Accessories

    OPTIONAL ACCESSORIES 1. K520 Utility Cart — Designed to transport the Lincoln family of small welders. Has provisions for mounting a single gas cylinder. Has front casters and large rear wheels. Handle height is easily adjustable. Bottom tray provided for tools and accessories.

  • Page 23: Innershield (Fcaw) Conversion

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

  • Page 24: 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 25: 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 26: 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 27: Changing Liner

    Set Screw Brass Cable Connector Liner Assembly (Liner bushing to be sealed tight against brass cable connector) FIGURE D.2 Liner trim length MAINTENANCE 1-1/4 (31.8 mm) CHANGING LINER Liner Trim Length NOTICE: The variation in cable lengths prevents the interchangeability of liners. Once a liner has been cut for a particular gun, it should not be installed in another gun unless it can meet the liner cutoff length requirement.

  • Page 28: 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 29: 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 30 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. TROUBLESHOOTING POSSIBLE...
  • Page 31 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 POSSIBLE...
  • Page 32 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 33: Wiring Diagrams

    WIRING DIAGRAMS SP-175 PLUS...
  • Page 34 NOTES...
  • Page 35 ● WARNING ● Spanish ● AVISO DE PRECAUCION ● French ● ATTENTION ● ● German WARNUNG ● Portuguese ● ATENÇÃO ● Japanese Chinese Korean Arabic ● ● ● ● ● ● ● ● ● ●...
  • Page 36 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Spanish ● PRECAUCION French ● ATTENTION ● German WARNUNG Portuguese ● ● Japanese Chinese Korean Arabic WARNING AVISO DE ATENÇÃO...
  • Page 37 • 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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