IM910 LN-15 WIRE FEEDER February, 2009 For use with machines having Code Number: 11372 This manual covers equipment which is no longer in production by The Lincoln Electric Co. Specifications and availability of optional features may have changed. 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.
i i SAFETY WARNING CALIFORNIA PROPOSITION 65 WARNINGS Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm. The Above For Diesel Engines The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. The Above For Gasoline Engines ARC WELDING CAN BE HAZARDOUS.
ii ii SAFETY 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. 3.b. Insulate yourself from work and ground using dry insulation. Make certain the insulation is large enough to cover your full area of physical contact with work and ground.
iii iii SAFETY WELDING and CUTTING 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. Avoid welding near hydraulic lines. Have a fire extinguisher readily available. 6.b.
iv iv SAFETY 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 suivantes: Sûreté Pour Soudage A L’Arc 1. Protegez-vous contre la secousse électrique: a. Les circuits à l’électrode et à la piéce sont sous tension quand la machine à souder est en marche.
v SAFETY 60974-10 v
vi SAFETY EN 60974-10: vi
vii vii Thank You 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! CUSTOMER ASSISTANCE POLICY The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. Our challenge is to meet the needs of our customers and to exceed their expectations.
viii viii TABLE OF CONTENTS Page Installation.......................................................................................................................Section A Technical Specifications .......................................................................................................A-1 Safety Precautions ...............................................................................................................A-2 Location .............................................................
A-1 A-1 INSTALLATION TECHNICAL SPECIFICATIONS – LN-15 (K1871-3 CE) INPUT VOLTAGE 42 VAC/1/50/60 (5 Amps Maximum) CONTROL CABLE MODEL RATED CURRENT 500 Amps 60% Duty Cycle 350 Amps 100% Duty Cycle ELECTRODE DIAMETERS and SPEED RANGE Electrode Size Speed Range Solid Electrode 0.023 - 0.052" 50 - 700 in/min (0.6 - 1.3 mm) (1.3 - 17.8 m/min) Steel Flux Cored Electrode 0.035 - 5/64" 50 - 400 in/min (0.9 - 2.3 mm) (1.3 - 10.1 m/min) PHYSICAL DIMENSIONS HEIGHT 12.
A-2 A-2 INSTALLATION WELD CABLE CONNECTIONS SAFETY PRECAUTIONS WARNING WARNING ELECTRIC SHOCK CAN KILL. • ONLY QUALIFIED PERSONNEL SHOULD PERFORM THIS INSTALLATION. • Turn off input power to the power source at the disconnect switch or fuse box before working on this equipment. Turn off the input power to any other equipment connected to the welding system at the disconnect switch or fuse box before working on the equipment. • Do not touch electrically hot parts.
A-3 INSTALLATION ELECTRODE CONNECTION Route the electrode cable through the strain relief in the rear of the case. Connect the electrode cable to the LN-15 connection block using the mounting hardware provided. Secure the cable by tightening the strain relief. All domestic models are supplied with an optional pigtail for customers that prefer to make a taped and bolted connection externally. CE models have a male twist connector for the electrode connection. WORK CONNECTION A-3 4.
A-4 INSTALLATION A-4 CONNECTION DIAGRAM, CONTROL CABLE MODELS ( See Figure A.1) FIGURE A.1 -3 -3 -3 GUNS AND CABLES ASSEMBLIES CONTROL CABLE CONNECTIONS A variety of Lincoln 10' (3.0m) or 15' (4.6m) gun and cable assemblies are available for use with the LN-15, including the Magnum™ models for GMAW, K126 or K115 models for Innershield®, and more. For Control Cable model, attach the control cable from the LN-15 to power source. Do not use more than 150 ft (45 m) of cable. Table A.
A-5 A-5 INSTALLATION PROCEDURE TO INSTALL DRIVE ROLLS AND WIRE GUIDES FEEDING WIRE ELECTRODE WARNING WARNING • ELECTRIC SHOCK CAN KILL. • Turn off input power at the welding power source before installation or changing drive roll and/or wire guides. • Do not touch electrically live parts such as the wire drive or internal wiring.
B-1 B-1 OPERATION SAFETY PRECAUTIONS READ AND UNDERSTAND ENTIRE SECTION BEFORE OPERATING MACHINE. GRAPHIC SYMBOLS THAT APPEAR ON THIS MACHINE OR IN THIS MANUAL INPUT POWER WARNING • ELECTRIC SHOCK CAN KILL. Unless using COLD FEED feature, when feeding with gun trigger, the electrode and drive mechanism are always electrically energized and could remain energized several seconds after the welding ceases.. • Do not attach the work clip to the roll cage or bottom skids.
B-2 B-2 OPERATION GENERAL DESCRIPTION DUTY CYCLE The LN-15 is a light weight, portable, durable semiautomatic wire feeder. The LN-15 wire feeders are intended for semi-automatic use. The maximum rating of the LN-15 is based upon a 60% duty cycle; 6 minutes of welding followed by 4 minutes of idling within a 10 minute period. The LN-15 accommodates spools 8" (200mm) diameter up to 4" (100mm) wide.
B-3 B-3 OPERATION CASE FRONT CONTROLS (See Figure B.1) ACROSS THE ARC MODEL 1. WIRE FEED SPEED DISPLAY-The Wire Feed Speed display shows the rate the LN-15 will feed electrode during welding. The default WFS units for domestic models are inches/minute and can be changed to meters/minute through the configuration menu. The default WFS units for the European models are m/min. The wire feed speed is calibrated to within ±2%. 2.
B-4 B-4 OPERATION LN-15 POWER-UP SEQUENCE Normal Power-Up Display When power is first applied to the LN-15, the display will momentarily show set-up information. For example, it may show "CV" and "HI", indicating operation from a CV power source and the wire drive is configured for the high speed gear. Because of limitations in the display, "CV" will appear as "Cu". Preflow: Postflow: Burnback: 3. Activate and then release the GAS PURGE switch to select the timer.
B-5 B-5 OPERATION Rotate the WFS knob until the desired parameter is displayed. INTERNAL CONTROLS (Figure B.2) SPRING TENSION ARM CV/CC Mode: COLD FEED/ GAS PURGE SWITCH 2 STEP/TRIGGER INTERLOCK SWITCH SPINDLE BRAKE WFS Units: 2. Activate and release the GAS PURGE switch to select the parameter. The present value will then display in the right hand side of the display. Example: FLOWMETER SPRING TENSION ARM 3. Rotate the WFS knob to change the parameter setting.
B-6 B-6 OPERATION WIRE DRIVE CONFIGURATION 6. Remove the outer wire guide, and push the gun bushing out of the wire drive. Because of the precision fit, light tapping may be required to remove the gun bushing. 7. Disconnect the shielding gas hose from the gun bushing, if required. 8. Connect the shielding gas hose to the new gun bushing, if required. 9. Rotate the gun bushing until the thumb screw hole aligns with the thumb screw hole in the feed plate.
B-7 B-7 OPERATION Hold with toggle switch in the DOWN position to activate Gas Purge and let the shielding gas flow. The gas solenoid valve will energize but neither the power source output nor the drive motor will be turned on. The Gas Purge switch is useful for setting the proper flow rate of shielding gas. Flow meters should always be adjusted while the shielding gas is flowing. 2 STEP - TRIGGER INTERLOCK SWITCH The 2 Step - Trigger Interlock switch changes the function of the gun trigger.
B-8 B-8 OPERATION CONSTANT CURRENT OPERATION ( See Figure B.3) CAUTION Lincoln Electric does NOT recommend constant current semiautomatic welding for applications which need to meet specified weld metal chemical or mechanical property requirements or weld quality requirements. -----------------------------------------------------------------------Most semiautomatic welding processes perform better using constant voltage power sources.
B-9 B-9 OPERATION SETTING ARC SENSING WIRE FEED SPEED FOR CONSTANT CURRENT OPERATION The wire will feed at the DESIRED IN/MIN speed when the welding power source is set to the arc voltage to be used for the weld procedure (375 in/min. at 29V for example used). When using a constant current (formerly variable voltage) power source, welding performance is improved using arc sensing wire feed speed (CC operation).
B-10 OPERATION MAKING A WELD The serviceability of a product or structure utilizing the LN-15 wire feeder is and must be the sole responsibility of the builder/user. Many variables beyond the control of The Lincoln Electric Company affect the results obtained in using the LN-15 wire feeder. These variables include, but are not limited to, welding procedure, plate chemistry and temperature, weldment design, fabrication methods and service requirements.
C-1 C-1 ACCESSORIES OPTIONAL EQUIPMENT • K1797-[ ] control cable extensions • K1798 Adapter Cable for Control Cable to Terminal Strip Power Sources • K1500-1, -2, -3, -5 Gun Receiver Bushings • Drive Roll Kits (Include drive rolls and guide tube necessary to feed the identified wire size and type. WIRE TYPE ELECTRODE SIZE KP KIT Steel Wires: .023-.030" (0.6-0.8mm) KP1696-030S (Including stainless steel) .035" (0.9mm) KP1696-035S .040-.045" (1.0-1.2mm) KP1696-045S .052" (1.4mm) KP1696-052S .035-.045" (0.
D-1 MAINTENANCE SAFETY PRECAUTIONS WARNING ELECTRIC SHOCK can kill. • Do not operate with covers removed. • Turn off power source before installing or servicing. • Do not touch electrically hot parts. • Turn the input power to the welding power source off at the fuse box before working in the terminal strip. • Only qualified personnel should install, use or service this equipment.
E-1 TROUBLESHOOTING E-1 HOW TO USE TROUBLESHOOTING GUIDE WARNING 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.
TROUBLESHOOTING E-2 E-2 Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) RECOMMENDED COURSE OF ACTION POSSIBLE CAUSE OUTPUT PROBLEMS Major physical or electrical damage 1. Contact your local authorized is evident when the sheet metal cov- Lincoln Electric Field Service facilers are removed. ity for technical assistance. The wire drive turns off periodically 1. The supply voltage for the LN-15 while operating on an engine drive. is too low. No shielding gas flow. 1.
E-3 E-3 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) RECOMMENDED COURSE OF ACTION POSSIBLE CAUSE The Wire Feed Speed Range is only 1. The 83% wire feed speed dual procedure is activated with the low 50 - 374 in/min ( 1.3 - 9.5 m/min) speed gear. Check dual procedure switch in gun. DISPLAY PROBLEMS "POS", "PRE" or "BRN" show on the 1. The LN-15 is in the Press and Spin set-up mode. display. 2.
E-4 TROUBLESHOOTING E-4 Observe all Safety Guidelines detailed throughout this manual ERRORS ON THE DISPLAY Fault Code Err 0081 Description Average motor over current shutdown Possible Adjustments • The wire drive motor has overheated. • Check to make sure the electrode slides easily through the liner of the gun. • Reduce the amount of tension in the wire drive tension arm. • Verify that the spindle brake is not set too tight. • For best results, use only Lincoln electrodes.
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. If the diagram is illegible, write to the Service Department for a replacement. Give the equipment code number.
F-2 DIMENSION PRINT LN-15 CONTROL CABLE MODEL (CE) F-2
NOTES LN-15 CONTROL CABLE MODEL (CE)
● Do not touch electrically live parts or WARNING Spanish AVISO DE PRECAUCION French ATTENTION German WARNUNG Portuguese ATENÇÃO ● Keep flammable materials away. ● Wear eye, ear and body protection. ● Mantenga el material combustible ● Protéjase los ojos, los oídos y el electrode with skin or wet clothing. ● Insulate yourself from work and ground. ● No toque las partes o los electrodos bajo carga con la piel o ropa mojada. ● Aislese del trabajo y de la tierra.
● Keep your head out of fumes. ● Use ventilation or exhaust to ● Turn power off before servicing. ● Do not operate with panel open or guards off. remove fumes from breathing zone. ● Los humos fuera de la zona de res- piración. ● Mantenga la cabeza fuera de los humos. Utilice ventilación o aspiración para gases. ● Gardez la tête à l’écart des fumées. ● Utilisez un ventilateur ou un aspira- ● Desconectar el cable de ali- mentación de poder de la máquina antes de iniciar cualquier servicio.
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