Lincoln Electric IM790 - Manuals

Lincoln Electric IM790 – Manual in PDF format online.

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Manual

Manual Lincoln Electric IM790

Summary

Page 2 - SAFETY; WARNING; CALIFORNIA PROPOSITION 65 WARNINGS; The Above For Diesel Engines

SP-175 PLUS FOR ENGINEpowered equipment. 1.a. Turn 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 fum...

Page 3 - ii

SP-175 PLUS ii SAFETY ii 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 and filter lensshould conform to ANSI Z87. I standards. 4.b. Use suitable clothing made ...

Page 4 - iii

SP-125 PLUS 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.S. National Electrical Code, all local codes and the manufacturer ’ s recommendations. 8.c. Ground the ...

Page 5 - iv

SP-175 PLUS iv SAFETY iv PR É CAUTIONS DE S Û RET É Pour votre propre protection lire et observer toutes les instructions et les pr é cautions de s û ret é specifiques qui parraissent dans ce manuel aussi bien que les pr é cautions de s û ret é g é n é rales suiv- antes: S û ret é Pour Soudage A L ’...

Page 6 - Thank You; Please Examine Carton and Equipment For Damage Immediately

SP-175 PLUS v v Thank You for selecting a QUALITY product by Lincoln Electric. We want youto take pride in operating this Lincoln Electric Company product ••• as much pride as we have in bringing this product to you! Read this Operators Manual completely before attempting to use this equipment. Save...

Page 7 - TABLE OF CONTENTS

vi vi SP-175 PLUS TABLE OF CONTENTS Page Installation .......................................................................................................Section A Technical Specifications ........................................................................................A-1Identify and Loca...

Page 8 - INSTALLATION; TECHNICAL SPECIFICATIONS

A-1 A-1 INSTALLATION SP-175 PLUS TECHNICAL SPECIFICATIONS – SP-175 Plus Fuse or Output Mode Input Voltage Breaker Size Input Amps Power Cord RATED 230V/60Hz 40 Super Lag 21/23 50 Amp, 250V, 208V/60Hz Three-Prong Plug (NEMA Type 6-50P) INPUT – SINGLE PHASE ONLY RATED OUTPUT OUTPUT RECOMMENDED INPUT C...

Page 9 - SAFETY PRECAUTIONS; ELECTRIC SHOCK can kill.

A-2 A-2 INSTALLATION SP-175 PLUS Read entire installation section before startinginstallation. SAFETY PRECAUTIONS IDENTIFY AND LOCATE COMPONENTS If you have not already done so, unpack the SP-175Plus from its carton and remove all packing materialaround the SP-175 Plus . Remove the following looseit...

Page 10 - SELECT SUITABLE LOCATION; OUTPUT CONNECTIONS; Work Clamp Installation

A-3 A-3 INSTALLATION SP-175 PLUS SELECT SUITABLE LOCATION Locate the welder in a dry location where there is freecirculation of clean air into the louvers in the back andleft side and out the front of the unit. A location thatminimizes the amount of smoke and dirt drawn intothe louvers reduces the c...

Page 11 - GAS CONNECTION; Keep cylinder away from areas; GUN INSTALLATION; Connecting Gun Cable to the SP-175 Plus; CAUTION

A-4 A-4 INSTALLATION 4. For GMAW Only: Refer to Figure A.2. As deliv- ered, the SP-175 Plus is wired for positive polarity.This is the appropriate configuration for the GasMetal Arc Welding (GMAW) process. To completeinstallation, use the provided wing nut to connectthe work cable ’ s terminal lug t...

Page 12 - INPUT CONNECTIONS

A-5 A-5 INSTALLATION SP-175 PLUS 3. Attach the flow regulator to the cylinder valve and tighten the union nut securely with a wrench. Theflow regulator for carbon dioxide must have a plas-tic washer seated in the fitting that attaches to thecylinder to prevent leakage. 4. Refer to Figure A.6. Attach...

Page 13 - Line Cord Connection

A-6 A-6 INSTALLATION Line Cord Connection A 3 conductor line cord with a 50 amp, 250 volt, three-prong plug (NEMA Type 6-50P) is factory installed.Connect this plug to a mating grounded receptaclewhich is connected to an appropriate power supplyper the U.S. National Electric Code and any applicablel...

Page 14 - OPERATION

B-1 SP-175 PLUS B-1 OPERATION Read entire Operation section beforeoperating the SP-175 Plus. ELECTRIC SHOCK can kill. • Do not touch electrically live parts or electrode with skin orwet clothing. Insulate yourselffrom work and ground. • Always wear dry insulating gloves. FUMES AND GASES can bedanger...

Page 15 - GENERAL DESCRIPTION; RECOMMENDED PROCESSES; WELDING CAPABILITY

B-2 B-2 OPERATION 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/rectifierpower source and a wire feeder with welding gun for feeding.023 ” (0.6 mm) through .035...

Page 16 - WELDING OPERATIONS; SEQUENCE OF OPERATION; Note: When loading and removing the 8

WELDING OPERATIONS SEQUENCE OF OPERATION Wire LoadingRefer to Figure B.2 and B.3.The machine power switch should be turned to theOFF ( “ O ” ) position before working inside the wire feed enclosure. The machine is shipped from the factory ready to feed8 ” (200 mm) diameter spools [2.2 ” (56 mm) max....

Page 17 - Note: The brake should be adjusted with a spool of

B-4 SP-175 PLUS B-4 OPERATION FIGURE B.3 Note: The brake should be adjusted with a spool of wire installed. When properly adjusted it shouldmove freely but not coast. Friction Brake Adjustments 1. With wire spool installed, check free movement and coast of the spool. 2. To tighten the brake, turn th...

Page 18 - Making A Weld

B-5 B-5 OPERATION Shielding GasWhen using the GMAW process, a cylinder of shield-i n g g a s , m u s t b e o b t a i n e d . R e f e r t o t h e A C C E S -SORIES section for more information about selectinggas cylinders for use with the SP-175 Plus. Be sureto observe all cylinder handling and use p...

Page 19 - PROCESS GUIDELINES

B-6 B-6 OPERATION 9. To stop welding, release the gun trigger and then pull the gun away from the work after the arc goesout. 10. When no more welding is to be done, close valve on gas cylinder (if used), momentarily operate guntrigger to release gas pressure, and turn off theSP-175 Plus. Cleaning T...

Page 20 - OVERLOAD PROTECTION

SP-175 PLUS B-7 OPERATION OVERLOAD PROTECTION Output OverloadThe SP-175 Plus is equipped with a circuit breakerwhich protects the machine from potential damagefrom excessive output current. The circuit breaker but-ton will extend out when tripped. The circuit breakermust be manually reset. Thermal P...

Page 21 - APPLICATION CHART

Page 22 - ACCESSORIES; OPTIONAL ACCESSORIES

C-1 C-1 SP-175 PLUS ACCESSORIES OPTIONAL ACCESSORIES 1. K520 Utility Cart — Designed to transport the Lincoln family of small welders. Has provisions formounting a single gas cylinder. Has front castersand large rear wheels. Handle height is easilyadjustable. Bottom tray provided for tools andaccess...

Page 23 - REPLACEMENT PARTS

C-2 C-2 ACCESSORIES INNERSHIELD (FCAW)CONVERSION Several changes are needed to convert the unit foroperation with the Innershield (FCAW) process. TheInnershield Kits include all the necessary accessoriesfor this conversion and are provided for this purpose.The following conversions should be made us...

Page 24 - BEFORE EACH USE; MAINTENANCE; PERIODICALLY AS REQUIRED

MAINTENANCE SAFETY PRECAUTIONS ELECTRIC SHOCK can kill. • Disconnect input power by remov- ing plug from receptacle beforeworking inside SP-175 Plus . Useonly grounded receptacle. Do nottouch electrically “ hot ” parts inside SP-175 Plus . • Have qualified personnel do the maintenance and trouble sh...

Page 25 - FOR MAGNUM; Contact Tip

D-2 SP-175 PLUS D-2 MAINTENANCE GUN AND CABLE MAINTENANCE FOR MAGNUM ™ 100L GUN Gun Cable CleaningClean cable liner after using approximately 300 lbs(136 kg) of solid wire or 50 lbs (23 kg) of flux-coredwire. Remove the cable from the wire feeder and lay itout straight on the floor. Remove the conta...

Page 26 - CHANGING THE CONTACT TIP; NOTE: The stencil of the groove that you want to use

D-3 D-3 MAINTENANCE 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-clockw...

Page 27 - CHANGING LINER; Liner trim length

D-4 SP-175 PLUS D-4 MAINTENANCE CHANGING LINER NOTICE: The variation in cable lengths prevents theinterchangeability of liners. Once a liner has beencut for a particular gun, it should not be installed ina n o t h e r g u n u n l e s s i t c a n m e e t t h e l i n e r c u t o f flength requirement....

Page 28 - GUN HANDLE PARTS

D-5 SP-175 PLUS D-5 MAINTENANCE GUN HANDLE PARTS The gun handle consists of two halves that are heldtogether with a collar on each end. To open up thehandle, turn the collars approximately 60 degreescounter-clockwise until the collar reaches a stop. Thenpull the collar off the gun handle. If the col...

Page 29 - TROUBLESHOOTING; HOW TO USE TROUBLESHOOTING GUIDE

E-1 SP-175 PLUS E-1 TROUBLESHOOTING If for any reason you do not understand the test procedures or are unable to Performthe tests/repairs safely, contact your LOCAL AUTHORIZED LINCOLN ELECTRICFIELD SERVICE FACILITY for assistance before you proceed. __________________________________________________...

Page 30 - OUTPUT PROBLEMS

E-2 SP-175 PLUS E-2 TROUBLESHOOTING PROBLEMS(SYMPTOMS) Major physical or electrical damageis evident. No wire feed, weld output or gasflow when gun trigger is pulled. Fandoes NOT operate. No weld output or wire feed whengun trigger is pulled. Fan runs andgas flows normally. No weld output when gun t...

Page 31 - FEEDING PROBLEMS

E-3 SP-175 PLUS E-3 TROUBLESHOOTING 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. CAUTION PROBLEMS(SYMPTOMS) No wire feed when gun...

Page 32 - WELDING PROBLEMS

E-4 SP-175 PLUS E-4 TROUBLESHOOTING Observe Safety Guidelines detailed in the beginning of this manual. 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 ...

Page 33 - WIRING DIAGRAMS

F-1 SP-175 PLUS F-1 WIRING DIAGRAMS 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.

Page 34 - NOTES

Page 35 - ÇÃ

WARNING AVISO DE PRECAUCION ATTENTION WARNUNG ATEN ÇÃ O Spanish French German Portuguese Japanese Chinese Korean Arabic READ AND UNDERSTAND THE MANUFACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BEUSED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES. SE RECOMIENDA LEER Y ENTENDER LAS I...