Lincoln Electric LN-9 SVM127-A User Manual

SVM127-ANovember, 1996Safety Depends on YouLincoln arc welding equipmentis designed and built with safetyin mind. However, your overallsafety can be

ROUTING THE ELECTRODE The electrode supply may be either from reels, Readi-Reels, spools, or bulk packaged drums or reels.Observe the following precau

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TROUBLESHOOTING & REPAIRF-46 F-46LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

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TROUBLESHOOTING & REPAIRF-49 F-49LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

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CONNECTING THE POWER INPUTCABLE ASSEMBLY TO THE LN-9NE orLN-9SE The hand crank drive rolls will feed all the wires usedon the extension. The rolls ha

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TROUBLESHOOTING & REPAIRF-59 F-59LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

F-60 F-60LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Master

TROUBLESHOOTING & REPAIRF-61 F-61LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

7. If using welding currents over 450 amperes, con-nect a length of 1/0 cable between the brass blockon the hand crank and the input strap located in

F-62 F-62LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Master

F-63 F-63LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Master

F-64 F-64LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Master

F-65 F-65LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Master

F-66 F-66LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Master

TROUBLESHOOTING & REPAIRF-67 F-67LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

F-68 F-68LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Master

TROUBLESHOOTING & REPAIRF-69 F-69LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

NOTESF-70 F-70LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Ma

ELECTRICAL DIAGRAMSG-1 G-1LN-9 Wire FeederReturn to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCElectrical Diagram Sectio

CONNECTING THE POWER INPUTCABLE ASSEMBLY TO POWERSOURCESTurn input supply power to the power source OFFbefore connecting the LN-9 or LN-9F wire feeder

NOTESLN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Master TOC

G-2ELECTRICAL DIAGRAMSLN-9Wiring Diagram 517510518562518C2516123456789101112513C3VOLTS-SPEEDSELECTOR SWITCH561560517143625789562561560517510518510C602

G-3ELECTRICAL DIAGRAMSLN-9OPERATING SCHEMATIC1702 3-25-94A 8-2-96B

G-4ELECTRICAL DIAGRAMSLN-9METER BOARD (L6687) SCHEMATIC(UNLESS OTHERWISE SPECIFIED)EC+5V602TP5METER BOARD SCHEMATIC21145LN-9 & LN-9F (METRIC)SUBJE

G-5ELECTRICAL DIAGRAMSLN-9TRIGGER BOARD (M13861) SCHEMATIC1A600VD51A600VD6OCI143OCI112562R51A600VD21A600VD3332R11A600VD41A600VD15025VC11W20VDZ11W75VDZ

G-6ELECTRICAL DIAGRAMSLN-9TACHOMETER SCHEMATIC52515.0KR21.3KR440V600mAQ1OCI123141/4W(UNLESS OTHERWISE SPECIFIED)1A, 400VRESISTORS = Ohms (LN-9 TACHOM

INSTALLATIONA-8 A-8LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return

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INSTALLATIONA-10 A-10LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Retur

INSTALLATIONA-11 A-11LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Retur

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CONNECTING THE GUN CABLE TOTHE WIRE FEEDERA variety of gun and cable assemblies are available forthe LN-9 models. See the Accessories section of this

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSAFETYi iLN-9 Wire FeederFOR ENGINEpowered equipment.1.a. Turn the

NOTESA-14 A-14LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Ma

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSection B-1 Section B-1LN-9 Wire FeederTABLE OF CONTENTS- OPERATION

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GENERAL DESCRIPTIONThe LN-9 2-Roll and 4-Roll semiautomatic wire feedermodels feature the precise "set and forget" digital pro-cedure contro

CONTROLS AND SETTINGSOperator controls for LN-9N, NE, S and SE models areshown in Figure B.1. Controls for LN-9F models areshown in Figure B.2. Refe

FIGURE B.1 – WIRE FEEDER CONTROLS FOR LN-9N, NE, S, SEOPERATIONB-5 B-5LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TO

OPERATIONB-6 B-6LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to

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If such a grounding lead fault occurs, the meter will stillbe on and will be reading. The trigger circuit will notoperate, however. To release the c

DRIVE ROLL INSTALLATION ANDPRESSURE SETTINGCHANGING WIRE FEED ROLLS AND GUIDETUBES FOR TWO-ROLLWIRE FEEDERSTo change drive or idle rolls on a two-roll

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSAFETYii iiLN-9 Wire FeederARC RAYS can burn.4.a. Use a shield with

6. Loosen the ingoing guide tube clamping screw.Install the all steel guide tube through the rearbrass block. Tighten the locking screw.7. Replace th

CHANGING WIRE FEED ROLLS ANDGUIDE TUBES FOR 4-ROLL WIRE FEED-ERSTo change drive rolls on a 4-roll wire feeder, refer toFigure B.4and perform the follo

For Aluminum WireEach set of rolls should have their pressure setindependent of the other. To do this, release andopen the other quick release arm wh

OPERATIONB-13 B-13LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return t

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7. To remove the Readi-Reel from the adapter,depress the retaining spring tab with thumb whilepulling the Readi-Reel cage from the moldedadapter with

LOADING 50 AND 60 LB. COILS ANDBRAKE ADJUSTMENT (K299 or K303Wire Reel Stand)1. To remove the wire reel from its shaft, grasp thespring loaded knob an

ELECTRODE FEEDING1. Turn the reel until the free end of the electrode isaccessible. 2. While tightly holding the electrode, cut off the bentend. Str

MAKING A TEST WELD ANDADJUSTING LN-9 RESPONSE ANDSTARTING CHARACTERISTICSADJUST THE POWER SOURCEDC-250, DC-400, or DC-600*1. Connect electrode lead t

ADJUST THE LN-9 CONTROLS1. Set the "Electrode Polarity" switch to same polarityas the electrode lead.2. Connect the "Direct Work Lead&q

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSAFETYiii iiiLN-9 Wire FeederFOR ELECTRICALLYpowered equipment.8.a.

MAKING A WELD1. Inch the electrode through the gun and cable andthen cut the electrode within approximately 3/8" ofthe end of the contact tip for

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCTABLE OF CONTENTS- ACCESSORIES -Accessories ...

AUXILIARY EQUIPMENT CONTACTSThe power for 115 volt AC auxiliary equipment can beobtained from the terminals inside the LN-9 controlbox. The contacts

ATTACHING THE WIRE REEL STANDSThe mounting hardware for mounting the stands isincluded with the LN-9. Screws and washers areinserted in their respect

ACCESSORIESC-4 C-4LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return t

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SWIVEL PLATFORM (K178-1)For all LN-9 wire reel stand combinations. For mount-ing wire feeder-wire reel stand assembly on top of suit-able Lincoln Ide

ACCESSORIESC-7 C-7LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return t

ACCESSORIESC-8 C-8LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return t

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSection D-1 Section D-1LN-9 Wire FeederTABLE OF CONTENTS-MAINTENANC

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSAFETYiv ivLN-9 Wire FeederPRÉCAUTIONS DE SÛRETÉPour votre propre p

SAFETY PRECAUTIONSELECTRIC SHOCK can kill.• Only qualified personnel shouldperform this maintenance.• Turn the input supply powerOFF at the disconne

GUN AND CABLE MAINTENANCEFor instructions on periodic maintenance for the weld-ing gun and cables, refer to the manual for your specif-ic model of wel

MAINTENANCED-4 D-4LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return t

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSection E-1 Section E-1LN-9 Wire FeederTheory of Operation ...

POWER INPUT CIRCUITSThe 115VAC is applied (usually from the welding powersource) via the input connector and through the circuitbreaker and R1 resisto

TRIGGER AND SHUTDOWN CIRCUITWhen the gun trigger switch is activated (closed), thetrigger board completes the trigger signal path. Thisenergizes the

ARC VOLTAGE, WIRE SPEED CONTROL AND METERINGThe arc voltage, which is sensed at the work piece andmotor gear box, is connected through a polarity swit

PRINTED CIRCUIT BOARD FUNCTIONSPOWER BOARDThe input power (115VAC) is applied to the powerboard, and from that the power board develops the DCfield vo

NOTESE-6 E-6LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to Master TOC Return to Mast

Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCSection F-1 Section F-1LN-9 Wire FeederTroubleshooting & Repair

MASTER TABLE OF CONTENTS FOR ALL SECTIONSv vLN-9 Wire FeederPageSafety...

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ELECTRIC SHOCK can kill.Have an electrician install and servicethis equipment. Turn the machine OFFbefore working on equipment. Do nottouch electric

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Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOCTABLE OF CONTENTS- INSTALLATION SECTION -Section A-1 Section A-1LN-

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TROUBLESHOOTING & REPAIRF-14 F-14LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

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TROUBLESHOOTING & REPAIRF-16 F-16LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

TROUBLESHOOTING & REPAIRF-17 F-17LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

TROUBLESHOOTING & REPAIRF-18 F-18LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

TROUBLESHOOTING & REPAIRF-19 F-19LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

TROUBLESHOOTING & REPAIRF-20 F-20LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

TROUBLESHOOTING & REPAIRF-21 F-21LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

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TROUBLESHOOTING & REPAIRF-22 F-22LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

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TROUBLESHOOTING & REPAIRF-29 F-29LN-9 Wire FeederReturn to Section TOC Return to Section TOC Return to Section TOC Return to Section TOCReturn to

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INSTALLING THE LN-9N and LN-9S 2-ROLL AND 4-ROLL MODELSATTACHING THE WIRE REEL STAND Both 2-Roll and 4-Roll LN-9 model wire feeders areshipped withou

6. Apply 115 VAC power.ELECTRIC SHOCK can kill.• With power applied,there are high voltagesinside the wire feeder.Do not reach into thewire feeder o

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ELECTRIC SHOCK can kill.• With power applied, thereare high voltages insidethe wire feeder. Do notreach into the wire feederor touch any internal pa

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Test Meter PC Board Accuracy. (Metric Models Only)1. Use a test meter with at least 3-1/2 digits and +/-.5% accuracy. 2. Connect the + probe to lea