Lincoln Electric LN-9 SVM127-A manual

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Buen manual de instrucciones

Las leyes obligan al vendedor a entregarle al comprador, junto con el producto, el manual de instrucciones Lincoln Electric LN-9 SVM127-A. La falta del manual o facilitar información incorrecta al consumidor constituyen una base de reclamación por no estar de acuerdo el producto con el contrato. Según la ley, está permitido adjuntar un manual de otra forma que no sea en papel, lo cual últimamente es bastante común y los fabricantes nos facilitan un manual gráfico, su versión electrónica Lincoln Electric LN-9 SVM127-A o vídeos de instrucciones para usuarios. La condición es que tenga una forma legible y entendible.

¿Qué es un manual de instrucciones?

El nombre proviene de la palabra latina “instructio”, es decir, ordenar. Por lo tanto, en un manual Lincoln Electric LN-9 SVM127-A se puede encontrar la descripción de las etapas de actuación. El propósito de un manual es enseñar, facilitar el encendido o el uso de un dispositivo o la realización de acciones concretas. Un manual de instrucciones también es una fuente de información acerca de un objeto o un servicio, es una pista.

Desafortunadamente pocos usuarios destinan su tiempo a leer manuales Lincoln Electric LN-9 SVM127-A, sin embargo, un buen manual nos permite, no solo conocer una cantidad de funcionalidades adicionales del dispositivo comprado, sino también evitar la mayoría de fallos.

Entonces, ¿qué debe contener el manual de instrucciones perfecto?

Sobre todo, un manual de instrucciones Lincoln Electric LN-9 SVM127-A debe contener:
- información acerca de las especificaciones técnicas del dispositivo Lincoln Electric LN-9 SVM127-A
- nombre de fabricante y año de fabricación del dispositivo Lincoln Electric LN-9 SVM127-A
- condiciones de uso, configuración y mantenimiento del dispositivo Lincoln Electric LN-9 SVM127-A
- marcas de seguridad y certificados que confirmen su concordancia con determinadas normativas

¿Por qué no leemos los manuales de instrucciones?

Normalmente es por la falta de tiempo y seguridad acerca de las funcionalidades determinadas de los dispositivos comprados. Desafortunadamente la conexión y el encendido de Lincoln Electric LN-9 SVM127-A no es suficiente. El manual de instrucciones siempre contiene una serie de indicaciones acerca de determinadas funcionalidades, normas de seguridad, consejos de mantenimiento (incluso qué productos usar), fallos eventuales de Lincoln Electric LN-9 SVM127-A y maneras de solucionar los problemas que puedan ocurrir durante su uso. Al final, en un manual se pueden encontrar los detalles de servicio técnico Lincoln Electric en caso de que las soluciones propuestas no hayan funcionado. Actualmente gozan de éxito manuales de instrucciones en forma de animaciones interesantes o vídeo manuales que llegan al usuario mucho mejor que en forma de un folleto. Este tipo de manual ayuda a que el usuario vea el vídeo entero sin saltarse las especificaciones y las descripciones técnicas complicadas de Lincoln Electric LN-9 SVM127-A, como se suele hacer teniendo una versión en papel.

¿Por qué vale la pena leer los manuales de instrucciones?

Sobre todo es en ellos donde encontraremos las respuestas acerca de la construcción, las posibilidades del dispositivo Lincoln Electric LN-9 SVM127-A, el uso de determinados accesorios y una serie de informaciones que permiten aprovechar completamente sus funciones y comodidades.

Tras una compra exitosa de un equipo o un dispositivo, vale la pena dedicar un momento para familiarizarse con cada parte del manual Lincoln Electric LN-9 SVM127-A. Actualmente se preparan y traducen con dedicación, para que no solo sean comprensibles para los usuarios, sino que también cumplan su función básica de información y ayuda.

Índice de manuales de instrucciones

  • Página 1

    SVM127-A November , 1996 Safety Depends on Y ou Lincoln arc welding 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. DO NOT INST ALL, OPERA TE OR REP AIR THIS EQUIPMENT WITHOUT READ- ING THIS MANUAL AND THE SAFETY PRECAUTIONS CON- T[...]

  • Página 2

    Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SAFETY i i LN-9 Wire Feeder FOR ENGINE powered equipment. 1.a. T urn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ____________________________________________________ 1.b. Operate engines in open, [...]

  • Página 3

    Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SAFETY ii ii LN-9 Wire Feeder ARC RA YS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding. Headshield and filter lens should conform to ANSI Z87. I [...]

  • Página 4

    Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SAFETY iii iii LN-9 Wire Feeder FOR ELECTRICALL Y powered equipment. 8.a. T urn off input power using the disconnect switch at the fuse box before working on the equipment. 8.b. Install equipment in accordance with the U.S. National Electrical Code, all local codes [...]

  • Página 5

    Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SAFETY iv iv LN-9 Wire Feeder 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- ante[...]

  • Página 6

    MASTER T ABLE OF CONTENTS FOR ALL SECTIONS v v LN-9 Wire Feeder Page Safety .................................................................................................................................................i-iv Installation ...............................................................................................................[...]

  • Página 7

    Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC T ABLE OF CONTENTS - INST ALLA TION SECTION - Section A-1 Section A-1 LN-9 Wire Feeder Installation ................................................................................................................................Section A T echnical Specifications ..[...]

  • Página 8

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INST ALLA TION A-2 A-2 TECHNICAL SPECIFICA TIONS — LN-9 INPUT POWER Supplied by power source: 1 15 V AC, 50/60 Hz., 350 V A WIRE FEED SPEED 50 to 600 inches per minute (1.27 to[...]

  • Página 9

    INST ALLING THE LN-9N and LN-9S 2-ROLL AND 4-ROLL MODELS A TT ACHING THE WIRE REEL ST AND Both 2-Roll and 4-Roll LN-9 model wire feeders are shipped without a wire reel stand. The screws and washers for mounting a wire reel stand are included with the LN-9 (fastened in their respective mounting holes). T o attach a stand: 1. Remove the three 3/8&qu[...]

  • Página 10

    ROUTING THE ELECTRODE The electrode supply may be either from reels, Readi- Reels, spools, or bulk packaged drums or reels. Observe the following precautions: • The electrode must be routed to the wire feed unit so that the bends in the wire are at a minimum. The force required to pull the wire from the reel into the wire feed unit must be kept a[...]

  • Página 11

    CONNECTING THE POWER INPUT CABLE ASSEMBL Y TO THE LN-9NE or LN-9SE The hand crank drive rolls will feed all the wires used on the extension. The rolls have been stenciled for identification. 1. Position the extension assembly cable so that the amphenol plug with the threads on its O.D. can be attached to the amphenol end of the power input cable. A[...]

  • Página 12

    7. If using welding currents over 450 amperes, con- nect a length of 1/0 cable between the brass block on the hand crank and the input strap located in the wire drive unit. T ape this cable to the extension assembly . Proper cable lengths are as follows: 22-1/2 ft. extension 26’ M5906-106 45 ft. extension 46’ M5906-104 8. A handle is provided a[...]

  • Página 13

    CONNECTING THE POWER INPUT CABLE ASSEMBL Y TO POWER SOURCES T urn input supply power to the power source OFF before connecting the LN-9 or LN-9F wire feeder . Connect to an appropriate Lincoln power source as fol- lows: 1. If using a multipurpose source (such as the DC- 250, DC-400 and DC-600), be sure it is properly set for the welding process bei[...]

  • Página 14

    INST ALLA TION A-8 A-8 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FIGURE A.5 – CONNECTION OF LN-9 TO DC-250, DC-400, AND CV/CVI POWER SOURCES Above diagram shows electrode connected positive. T o change[...]

  • Página 15

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INST ALLA TION A-9 A-9 LN-9 Wire Feeder FIGURE A.6 – CONNECTION OF LN-9 TO DC-600 POWER SOURCES Above diagram shows electrode connected positive. T o change polarity , turn pow[...]

  • Página 16

    INST ALLA TION A-10 A-10 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FIGURE A.7 – CONNECTION OF LN-9 TO DC-1000 POWER SOURCES Above diagram shows electrode connected positive. T o change polarity , turn [...]

  • Página 17

    INST ALLA TION A-11 A-11 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FIGURE A.8 – CONNECTION OF LN-9 TO PULSE POWER 500 POWER SOURCES Above diagram shows electrode connected positive. T o change polarity[...]

  • Página 18

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC INST ALLA TION A-12 A-12 LN-9 Wire Feeder MACHINE GROUNDING LN-9 wire feeders are grounded to the power source through the input cable. The power source grounding cable must be p[...]

  • Página 19

    CONNECTING THE GUN CABLE T O THE WIRE FEEDER A variety of gun and cable assemblies are available for the LN-9 models. See the Accessories section of this manual. Lay the cable out straight. Insert the connector on the welding conductor cable into the brass conductor block on the front of the wire drive unit. See Figure A.9. Make sure the connector [...]

  • Página 20

    NOTES A-14 A-14 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

  • Página 21

    Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Section B-1 Section B-1 LN-9 Wire Feeder T ABLE OF CONTENTS - OPERA TION SECTION - Operation .................................................................................................................................Section B Safety Instructions ..............[...]

  • Página 22

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC B-2 B-2 LN-9 Wire Feeder SAFETY INSTRUCTIONS Read and understand this entire section of operating instructions operating the machine. ELECTRIC SHOCK can kill. • Do not touch el[...]

  • Página 23

    GENERAL DESCRIPTION The LN-9 2-Roll and 4-Roll semiautomatic wire feeder models feature the precise "set and forget" digital pro- cedure control. They are designed to achieve higher quality control and weld quality levels more easily . The arc voltage and wire feed speed can be set on a digital meter before the arc is struck and the proce[...]

  • Página 24

    CONTROLS AND SETTINGS Operator controls for LN-9N, NE, S and SE models are shown in Figure B.1. Controls for LN-9F models are shown in Figure B.2. Refer to these figures and the fol- lowing descriptions of the controls. ELECTRODE POLARITY SWITCH: The polarity switch is located inside the wire drive section on the LN-9 model and on the front panel o[...]

  • Página 25

    FIGURE B.1 – WIRE FEEDER CONTROLS FOR LN-9N, NE, S, SE OPERA TION B-5 B-5 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC VOLTS CONTROL METER READING SWITCH DIGITAL METER SET-ACTUAL PUSHBUTTON CIRCUIT BREAKE[...]

  • Página 26

    OPERA TION B-6 B-6 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FIGURE B.2 – WIRE FEEDER CONTROLS FOR LN-9F LN-9F CONTROL BOX BOTTOM VIEW[...]

  • Página 27

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OPERA TION B-7 B-7 LN-9 Wire Feeder CIRCUIT BREAKER AND GROUNDING LEAD PRO- TECTOR (GLP) RESET SWITCH: These protection circuit devices are located on the front rail of the LN-9 [...]

  • Página 28

    If such a grounding lead fault occurs, the meter will still be on and will be reading. The trigger circuit will not operate, however . T o release the circuit, press the "GLP Reset" button. See Figure B.1 or B.2 for the location of this button. The following precautions are recommended to avoid GLP shutdown: • Do not allow the electrode[...]

  • Página 29

    DRIVE ROLL INST ALLA TION AND PRESSURE SETTING CHANGING WIRE FEED ROLLS AND GUIDE TUBES FOR TWO-ROLL WIRE FEEDERS T o change drive or idle rolls on a two-roll wire feeder , refer to Figure B.3 and perform the following steps: 1. Loosen idle roll spring pressure screw . 2. Remove clamping collar from the drive shaft. 3. Install drive roll and replac[...]

  • Página 30

    6. Loosen the ingoing guide tube clamping screw . Install the all steel guide tube through the rear brass block. T ighten the locking screw . 7. Replace the large ingoing guide tube into rear brass block. 8. Install the outgoing guide tube with its plastic insert through front brass block. T ighten the locking screw so its dog point goes into the g[...]

  • Página 31

    CHANGING WIRE FEED ROLLS AND GUIDE TUBES FOR 4-ROLL WIRE FEED- ERS T o change drive rolls on a 4-roll wire feeder , refer to Figure B.4 and perform the following steps: 1. Release both quick release levers. 2. Remove clamping collars from both drive shafts. 3. Install one drive roll and replace clamping collar . T ighten screw . 4. Slide the middle[...]

  • Página 32

    For Aluminum Wire Each set of rolls should have their pressure set independent of the other . T o do this, release and open the other quick release arm while making each adjustment. Follow the procedure below for each adjustment. 1. With low idle roll pressure, load the feeder so it’s ready for welding. 2. Run the feeder at a slow speed (about 10[...]

  • Página 33

    OPERA TION B-13 B-13 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FIGURE B.4 – INST ALLING DRIVE ROLLS ON A 4-ROLL FEEDER[...]

  • Página 34

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OPERA TION B-14 B-14 LN-9 Wire Feeder WIRE LOADING LOADING AND FEEDING READI-REELS OR SPOOLS LOADING A 22 TO 30 LB. READI-REEL P ACKAGE USING THE MOLDED PLASTIC K363-P TYPE ADAPT[...]

  • Página 35

    7. T o remove the Readi-Reel from the adapter , depress the retaining spring tab with thumb while pulling the Readi-Reel cage from the molded adapter with both hands. Do not remove the adapter from the spindle. LOADING A 15 TO 30 LB. SPOOL (12" DIAMETER): (For 8" spools, a K468 spindle adapter must be used.) 1. Remove the locking collar a[...]

  • Página 36

    LOADING 50 AND 60 LB. COILS AND BRAKE ADJUSTMENT (K299 or K303 Wire Reel Stand) 1. T o remove the wire reel from its shaft, grasp the spring loaded knob and pull it out. This straightens the knob so that it seats into the shaft when released. Remove the reel. 2. Lay the reel flat on the floor , loosen the spinner nut and remove the cover plate. 3. [...]

  • Página 37

    ELECTRODE FEEDING 1. T urn the reel until the free end of the electrode is accessible. 2. While tightly holding the electrode, cut off the bent end. Straighten the first 6 inches. 3. Cut off the first inch. Insert the free end through the incoming guide tube. 4. Insert the free end through the incoming guide tube. 5. Press the gun trigger or “col[...]

  • Página 38

    MAKING A TEST WELD AND ADJUSTING LN-9 RESPONSE AND ST ARTING CHARACTERISTICS ADJUST THE POWER SOURCE DC-250, DC-400, or DC-600* 1. Connect electrode lead to terminal of desired polarity . 2. Set toggle switch to same polarity as the electrode cable connection. 3. Set toggle switch to "Output Control Remote." 4. Set mode switch to the desi[...]

  • Página 39

    ADJUST THE LN-9 CONTROLS 1. Set the "Electrode Polarity" switch to same polarity as the electrode lead. 2. Connect the "Direct Work Lead" if it is going to be used. 3. Check that "Feed Direction" is set to forward. 4. Set the "T rigger Interlock" switch as desired. 5. Set the "Meter Reading" switch [...]

  • Página 40

    MAKING A WELD 1. Inch the electrode through the gun and cable and then cut the electrode within approximately 3/8" of the end of the contact tip for solid wire and within approximately 3/4" of the extension guide for cored wire. 2. Connect the work cable to the metal to be welded. The work cable must make good electrical contact to the wo[...]

  • Página 41

    Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC T ABLE OF CONTENTS - ACCESSORIES - Accessories .............................................................................................................................Section C Auxiliary Equipment Contacts .......................................................[...]

  • Página 42

    AUXILIAR Y EQUIPMENT CONT ACTS The power for 1 15 volt AC auxiliary equipment can be obtained from the terminals inside the LN-9 control box. The contacts are “hot” whenever the trigger is pressed or the unit is welding. The current draw of this circuit must not exceed 1/4 ampere. TURN THE INPUT POWER TO THE POWER SOURCE OFF A T THE DISCONNECT [...]

  • Página 43

    A TT ACHING THE WIRE REEL ST ANDS The mounting hardware for mounting the stands is included with the LN-9. Screws and washers are inserted in their respective mounting holes. T o con- nect: 1. Remove the three 3/8 in. hex head bolts from the back of the wire feed unit. 2. Place the wire reel mounting stand mounting bracket in position against the b[...]

  • Página 44

    ACCESSORIES C-4 C-4 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC GUN AND CABLE ASSEMBLIES A variety of standard Lincoln and Magnum gun and cable assemblies are available for the LN-9 in 10 ft., 12 ft. and 1[...]

  • Página 45

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ACCESSORIES C-5 C-5 LN-9 Wire Feeder WIRE FEEDER ACCESSORIES BURNBACK DELA Y KIT (K202) Provides a precise control of the electrode burnback at the end of the weld. Prevents crat[...]

  • Página 46

    SWIVEL PLA TFORM (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 Idealarc power sources. Recommended input cable assembly length is 10 feet (3m) when using the K178-1. Bolt the platform to the lift bail according to instructions supplied with the platform (M16260).[...]

  • Página 47

    ACCESSORIES C-7 C-7 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC MAGNETIC SEP ARA TOR (K58) The K58 is a permanent magnet type separator designed to fit the top of the standard fill funnel of the continuous[...]

  • Página 48

    ACCESSORIES C-8 C-8 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC T ABLE C.2 – DRIVE ROLL AND GUIDE TUBE KITS Wire Size Kit 2-Roll 4-Roll Solid Steel Electrode .030 - .035” (0.8 - 0.9 mm) KP502 - 035 KP5[...]

  • Página 49

    Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Section D-1 Section D-1 LN-9 Wire Feeder T ABLE OF CONTENTS -MAINTENANCE- Maintenance ......................................................................................................................... Section D Routine Maintenance ............................[...]

  • Página 50

    SAFETY PRECAUTIONS ELECTRIC SHOCK can kill. • Only qualified personnel should perform this maintenance. • T urn the input supply power OFF at the disconnect switch or fuse box before working on this equipment. • Do not touch electrically hot parts. ROUTINE MAINTENANCE DRIVE ROLLS AND GUIDE TUBES After feeding any coil of wire, inspect the dri[...]

  • Página 51

    GUN AND CABLE MAINTENANCE For instructions on periodic maintenance for the weld- ing gun and cables, refer to the manual for your specif- ic model of welding gun. Also see IM-294. GUN CABLE CONNECTOR REQUIREMENTS TO PERMIT PROPER CONNECTION TO LINCOLN LN-9 AND LN-9F WIRE FEEDER The following Figures D.1 and D.2 should serve as a guide to determine [...]

  • Página 52

    MAINTENANCE D-4 D-4 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC FIGURE D.3 – GENERAL COMPONENT LOCA TIONS 1. CONTROL PC BOARD 2. TRIGGER PC BOARD 3. T1 TRANSFORMER 4. POWER PC BOARD 5. BOX ASSEMBL Y 6. D[...]

  • Página 53

    Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Section E-1 Section E-1 LN-9 Wire Feeder Theory of Operation ............................................................................................................. Section E General Description .................................................................[...]

  • Página 54

    POWER INPUT CIRCUITS The 1 15V AC is applied (usually from the welding power source) via the input connector and through the circuit breaker and R1 resistor to the power board, the T2 trig- ger transformer , and the T1 transformer . The 24V AC developed at the T2 trigger transformer is applied to the trigger board. There it is rectified and regulat[...]

  • Página 55

    TRIGGER AND SHUTDOWN CIRCUIT When the gun trigger switch is activated (closed), the trigger board completes the trigger signal path. This energizes the CR1 relay located on the power board. The CR1 relay activates the wire drive motor and the #2 and #4 circuit, which then activates the Lincoln welding power source. The CR1 relay may also be used to[...]

  • Página 56

    ARC VOL T AGE, WIRE SPEED CONTROL AND METERING The arc voltage, which is sensed at the work piece and motor gear box, is connected through a polarity switch to the voltage board. This actual arc voltage is com- pared to the reference preset voltage that is set by the voltage control. The voltage board determines what correction signal needs to be s[...]

  • Página 57

    PRINTED CIRCUIT BOARD FUNCTIONS POWER BOARD The input power (1 15V AC) is applied to the power board, and from that the power board develops the DC field voltage for the wire drive motor . The SCR circuit- ry , used to control the motor armature voltage, is also contained on the power board. The relay used to activate motor armature voltage, field [...]

  • Página 58

    NOTES E-6 E-6 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

  • Página 59

    Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Section F-1 Section F-1 LN-9 Wire Feeder T roubleshooting & Repair Section ................................................................................ Section F How to Use T roubleshooting Guide ..............................................................[...]

  • Página 60

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC HOW T O USE TROUBLESHOOTING GUIDE Service and repair should be performed by only Lincoln Electric Factory Trained Personnel. Unauthorized repairs performed on this equipment may [...]

  • Página 61

    ELECTRIC SHOCK can kill. Have an electrician install and service this equipment. T urn the machine OFF before working on equipment. Do not touch electrically hot parts. Sometimes machine failures appear to be due to PC board failures. These problems can sometimes be traced to poor electrical connections. T o avoid prob- lems when troubleshooting an[...]

  • Página 62

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-4 F-4 LN-9 Wire Feeder Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual. CAUTION If for any reason you do [...]

  • Página 63

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-5 F-5 LN-9 Wire Feeder TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. CAUTION If for any reason you do [...]

  • Página 64

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-6 F-6 LN-9 Wire Feeder Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual. CAUTION If for any reason you do [...]

  • Página 65

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-7 F-7 LN-9 Wire Feeder TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. CAUTION If for any reason you do [...]

  • Página 66

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-8 F-8 LN-9 Wire Feeder Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual. CAUTION If for any reason you do [...]

  • Página 67

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-9 F-9 LN-9 Wire Feeder TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. CAUTION If for any reason you do [...]

  • Página 68

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-10 F-10 LN-9 Wire Feeder Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual. CAUTION If for any reason you d[...]

  • Página 69

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-11 F-11 LN-9 Wire Feeder TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. CAUTION If for any reason you d[...]

  • Página 70

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-12 F-12 LN-9 Wire Feeder TROUBLESHOOTING & REP AIR TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. CAUTION If for any reason you d[...]

  • Página 71

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-13 F-13 LN-9 Wire Feeder Observe Safety Guidelines TROUBLESHOOTING GUIDE detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AR[...]

  • Página 72

    TROUBLESHOOTING & REP AIR F-14 F-14 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AR[...]

  • Página 73

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-15 F-15 LN-9 Wire Feeder TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AR[...]

  • Página 74

    TROUBLESHOOTING & REP AIR F-16 F-16 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AR[...]

  • Página 75

    TROUBLESHOOTING & REP AIR F-17 F-17 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AR[...]

  • Página 76

    TROUBLESHOOTING & REP AIR F-18 F-18 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AR[...]

  • Página 77

    TROUBLESHOOTING & REP AIR F-19 F-19 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AR[...]

  • Página 78

    TROUBLESHOOTING & REP AIR F-20 F-20 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AR[...]

  • Página 79

    TROUBLESHOOTING & REP AIR F-21 F-21 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AR[...]

  • Página 80

    TROUBLESHOOTING & REP AIR F-22 F-22 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING GUIDE Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AR[...]

  • Página 81

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-23 F-23 LN-9 Wire Feeder T1 TRANSFORMER TEST W ARNING Service and repair should be performed by only Lincoln Electric factory trained personnel. U[...]

  • Página 82

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-24 F-24 LN-9 Wire Feeder T1 TRANSFORMER TEST (continued) TEST PROCEDURE 1. Remove input power to the LN-9 wire feed- er . 2. Using the phillips he[...]

  • Página 83

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-25 F-25 LN-9 Wire Feeder 6. Using the volt/ohmmeter , check for 10V AC at secondary leads #601 and #602. T ypically , these leads are yellow . Pla[...]

  • Página 84

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-26 F-26 LN-9 Wire Feeder W ARNING T2 TRANSFORMER TEST Service and repair should be performed by only Lincoln Electric factory trained personnel. U[...]

  • Página 85

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-27 F-27 LN-9 Wire Feeder T2 TRANSFORMER TEST (continued) FIGURE F .3 – “PROTECTION CIRCUIT TROUBLESHOOTING” NAMEPLA TE PROTECTION CIRCUIT TR[...]

  • Página 86

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-28 F-28 LN-9 Wire Feeder T2 TRANSFORMER TEST (continued) 4. Locate the T2 transformer primary lead #32A connected to the 5 amp circuit break- er .[...]

  • Página 87

    TROUBLESHOOTING & REP AIR F-29 F-29 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC T2 TRANSFORMER TEST (continued) Electric Shock can kill. • With power applied, there are high voltages inside the wire [...]

  • Página 88

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-30 F-30 LN-9 Wire Feeder W ARNING WIRE DRIVE MOT OR AND T ACH FEEDBACK TEST Service and repair should be performed by only Lincoln Electric factor[...]

  • Página 89

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-31 F-31 LN-9 Wire Feeder WIRE DRIVE MOT OR AND T ACH FEEDBACK TEST (continued) FIGURE F .6 – LEAD #539, #541, #626B AND #627B A T POWER PC BOARD[...]

  • Página 90

    6. Apply 1 15 V AC power . ELECTRIC SHOCK can kill. • With power applied, there are high voltages inside the wire feeder . Do not reach into the wire feeder or touch any internal part of the wire feeder while power is applied. 7. With the gun trigger activated or the gun ter- minals jumpered together (see the Wiring Diagram), check the motor arma[...]

  • Página 91

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-33 F-33 LN-9 Wire Feeder T ACH FEEDBACK TEST PROCEDURE 1. Locate tach PC board leads #510, #525 and #555 on the control PC board. See Figure F .7.[...]

  • Página 92

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-34 F-34 LN-9 Wire Feeder W ARNING VOL TMETER ACCURACY TEST Service and repair should be performed by only Lincoln Electric factory trained personn[...]

  • Página 93

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-35 F-35 LN-9 Wire Feeder VOL TMETER ACCURACY TEST (continued) FIGURE F .8 – VOL TMETER CONNECTION POINT TEST PROCEDURE Perform the following che[...]

  • Página 94

    ELECTRIC SHOCK can kill. • With power applied, there are high voltages inside the wire feeder . Do not reach into the wire feeder or touch any internal part of the wire feeder while power is applied. 3. With the LN-9 gun trigger closed or the gun terminals jumpered together (see the Wiring Diagram), the test meter reading should match the LN-9 AC[...]

  • Página 95

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-37 F-37 LN-9 Wire Feeder W ARNING METER CIRCUIT ACCURACY TEST Service and repair should be performed by only Lincoln Electric factory trained pers[...]

  • Página 96

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-38 F-38 LN-9 Wire Feeder METER CIRCUIT ACCURACY TEST (continued) FIGURE F .9 – METER PC BOARD LOCA TIONS AND COVER MOUNTING SCREWS TEST PROCEDUR[...]

  • Página 97

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-39 F-39 LN-9 Wire Feeder METER CIRCUIT ACCURACY TEST (continued) 5. T est for AC supply to the meter PC board. Check for 8 to 1 1 V AC from lead #[...]

  • Página 98

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-40 F-40 LN-9 Wire Feeder METER CIRCUIT ACCURACY TEST (continued) T est Digital Meter Accuracy . (For LN-9 models above code 7980 with separable di[...]

  • Página 99

    T est 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 lead called for in the table below and the - probe to lead #510C. NOTE: The coating will have to be removed from the test points. 3. With the meter in SET M/MIN, adjust the speed con- trol until the LN[...]

  • Página 100

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-42 F-42 LN-9 Wire Feeder W ARNING WIRE SPEED ACCURACY TEST Service and repair should be performed by only Lincoln Electric factory trained personn[...]

  • Página 101

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-43 F-43 LN-9 Wire Feeder WIRE SPEED ACCURACY TEST (continued) TEST PROCEDURE Perform the following checks with the LN-9 wire feeder connected to a[...]

  • Página 102

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-44 F-44 LN-9 Wire Feeder W ARNING OUT OF VOL T AGE RANGE SHUT DOWN TEST Service and repair should be performed by only Lincoln Electric factory tr[...]

  • Página 103

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-45 F-45 LN-9 Wire Feeder OUT OF VOL T AGE RANGE SHUT DOWN TEST (continued) FIGURE F .1 1 – VOL T AGE PC BOARD WITH JUMPERS BYPASS PINS 1/8 AMP F[...]

  • Página 104

    TROUBLESHOOTING & REP AIR F-46 F-46 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OUT OF VOL T AGE RANGE SHUT DOWN TEST (continued) 8. If the ACTUAL voltage reading is zero, the sensing leads may be faul[...]

  • Página 105

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-47 F-47 LN-9 Wire Feeder W ARNING GENERAL POWER SUPPL Y TESTS Service and repair should be performed by only Lincoln Electric factory trained pers[...]

  • Página 106

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-48 F-48 LN-9 Wire Feeder GENERAL POWER SUPPL Y TESTS (continued) TEST PROCEDURE 1. Remove input power to the LN-9 wire feeder . 2. Using the phill[...]

  • Página 107

    TROUBLESHOOTING & REP AIR F-49 F-49 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC GENERAL POWER SUPPL Y CHECKS CHECKPOINT TEST CONNECTOR LEAD NO. NORMAL LOCA TION DESCRIPTION PLUG PIN NO. ACCEPT ABLE VOL[...]

  • Página 108

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-50 F-50 LN-9 Wire Feeder W ARNING DIGIT AL METER AND METER PC BOARD REMOV AL AND REPLACEMENT Service and repair should be performed by only Lincol[...]

  • Página 109

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-51 F-51 LN-9 Wire Feeder FIGURE F .12 – METER P ANEL ASSEMBL Y SCREWS MOUNTING SCREWS METER DIGIT AL METER AND METER PC BOARD REMOV AL AND REPLA[...]

  • Página 110

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-52 F-52 LN-9 Wire Feeder FIGURE F .14 – METER PC BOARD REMOV AL 4 MOUNTING NUTS DIGIT AL METER AND METER PC BOARD REMOV AL AND REPLACEMENT (cont[...]

  • Página 111

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-53 F-53 LN-9 Wire Feeder W ARNING REED SWITCH (CR2) REMOV AL AND REPLACEMENT Service and repair should be performed by only Lincoln Electric facto[...]

  • Página 112

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-54 F-54 LN-9 Wire Feeder PROCEDURE 1. Remove input power to the LN-9 wire feeder . 2. Lift the right side cover assembly . 3. Locate the CR2 reed [...]

  • Página 113

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-55 F-55 LN-9 Wire Feeder W ARNING T1 TRANSFORMER REMOV AL AND REPLACEMENT Service and repair should be performed by only Lincoln Electric factory [...]

  • Página 114

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-56 F-56 LN-9 Wire Feeder PROCEDURE 1. Remove input power to the LN-9. 2. Using the phillips head screw driver remove the screws holding the left s[...]

  • Página 115

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-57 F-57 LN-9 Wire Feeder 6. Disconnect leads #526 and #527 from the power PC board terminals. See Figure F .17. T1 TRANSFORMER REMOV AL AND REPLAC[...]

  • Página 116

    Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-58 F-58 LN-9 Wire Feeder 8. Remove the two phillips head screws from the control PC board mounting panel. 9. Using the 1 1/32" wrench, remove[...]

  • Página 117

    TROUBLESHOOTING & REP AIR F-59 F-59 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC T1 TRANSFORMER REMOV AL AND REPLACEMENT (continued) 1 1. Using the 5/16" wrench, remove the nuts and lockwashers mou[...]

  • Página 118

    F-60 F-60 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR W ARNING T ACH PC BOARD REMOV AL AND REPLACEMENT Service and repair should be performed by only Lincoln Electric factory [...]

  • Página 119

    TROUBLESHOOTING & REP AIR F-61 F-61 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC PROCEDURE 1. Remove input power to the LN-9 wire feeder . 2. Using the Phillips head screw driver , remove the screws hol[...]

  • Página 120

    F-62 F-62 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR 5. Remove control PC board leads #510, #525 and #555. See Figure F .22. T ACH PC BOARD REMOV AL AND REPLACEMENT (continue[...]

  • Página 121

    F-63 F-63 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR T ACH PC BOARD REMOV AL AND REPLACEMENT (continued) REASSEMBL Y 8. Upon reassembly the spacers must be used to assure tha[...]

  • Página 122

    F-64 F-64 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR DRIVE MOT OR REMOV AL AND REPLACEMENT W ARNING Service and repair should be performed by only Lincoln Electric factory tr[...]

  • Página 123

    F-65 F-65 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR DRIVE MOT OR REMOV AL AND REPLACEMENT (continued) PROCEDURE 1. Remove input power to the LN-9 wire feeder . 2. Using the [...]

  • Página 124

    F-66 F-66 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR DRIVE MOT OR REMOV AL AND REPLACEMENT (continued) 1 1. Remove the three screws that hold the glas- tic mounting to the LN[...]

  • Página 125

    TROUBLESHOOTING & REP AIR F-67 F-67 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC 13. Lift the right side cover assembly and care- fully lift and slide the motor and wire drive assembly partially out of [...]

  • Página 126

    F-68 F-68 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR DRIVE MOT OR REMOV AL AND REPLACEMENT (continued) 15. With the slot head screw driver , remove the three screws, lock was[...]

  • Página 127

    TROUBLESHOOTING & REP AIR F-69 F-69 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC RETEST AFTER REP AIR Retest the LN-9 wire feeder: If it fails any test and the test requires removing or replacing any me[...]

  • Página 128

    NOTES F-70 F-70 LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

  • Página 129

    ELECTRICAL DIAGRAMS G-1 G-1 LN-9 Wire Feeder Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC Electrical Diagram Section ............................................................................................ Section G Wiring Diagram ............................................................................[...]

  • Página 130

    NOTES LN-9 Wire Feeder Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC[...]

  • Página 131

    G-2 ELECTRICAL DIAGRAMS LN-9 Wiring Diagram 517 510 518 562 518 C2 516 1 2 3 4 5 6 7 8 9 10 11 12 513 C3 VOLTS-SPEED SELECTOR SWITCH 561 560 517 1 4 3 6 2 5 7 8 9 562 561 560 517 510 518 510C 602 601 METER BOARD DIGITAL METER METER BOARD PLUG 562 561 560 517 517 510 518 518 87 6 53 4 1 2 9 510B 510A 602 601 N.O. N.C. N.C. N.O. 515 514 512 511 515 5[...]

  • Página 132

    G-3 ELECTRICAL DIAGRAMS LN-9 OPERA TING SCHEMA TIC 1702 3-25-94A 8-2-96B OPERATING SCHEMATIC FI NONE 1702 6-14-85 11-1-96 G1590 t UNLESS OTHERWISE SPECIFIED TOLERANCE ON HOLE SIZES PER E2056 ON 2 PLACE DECIMALS IS .02 WITH PUBLISHED STANDARDS. ON 3 PLACE DECIMALS IS .002 ON ALL ANGLES IS .5 OF A DEGREE MATERIAL TOLERANCE (" ") TO AGREE TH[...]

  • Página 133

    G-4 ELECTRICAL DIAGRAMS LN-9 METER BOARD (L6687) SCHEMA TIC (UNLESS OTHERWISE SPECIFIED) EC +5V 602 TP5 METER BOARD SCHEMATIC 21145 LN-9 & LN-9F (METRIC) SUBJECT S SHT. SUP'S'D'G. COMMON CONNECTION EQUIP. TYPE NO. EARTH GROUND CONNECTION POWER SUPPLY SOURCE POINT FRAME CONNECTION CHK. 9-24-93 CLEVELAND, OHIO U.S.A. VOLTAGE NET SU[...]

  • Página 134

    G-5 ELECTRICAL DIAGRAMS LN-9 TRIGGER BOARD (M13861) SCHEMA TIC 1A 600V D5 1A 600V D6 OCI1 4 3 OCI1 1 2 562 R5 1A 600V D2 1A 600V D3 332 R1 1A 600V D4 1A 600V D1 50 25V C1 1W 20V DZ1 1W 75V DZ2 332 R3 562 R4 562 R6 562 R2 500 S 530 622 20031 24 VAC SWITCH 621 TRIGGER 620 623 FILE: S20031_3EB LABELS ELECTRICAL SYMBOLS PER E1537 A PRINTED N.A. SINCE C[...]

  • Página 135

    G-6 ELECTRICAL DIAGRAMS LN-9 T ACHOMETER SCHEMA TIC 525 15.0K R2 1.3K R4 40V 600mA Q1 OCI1 2 3 1 4 1/4W ( UNLESS OTHERWISE SPECIFIED) 1A, 400V RESISTORS = Ohms ( LN-9 TACHOMETER LABELS FRAME CONNECTION SUPPLY POWER SUPPLY SOURCE POINT EQUIP. TYPE THE LINCOLN ELECTRIC CO. S UNLESS OTHERWISE SPECIFIED) NONE 19852 MW 3/8/91 SCHEMATIC 19852 THE INTERCH[...]