Lincoln Electric LN-25 Service Manual
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Lincoln Electric LN-25 Service Manual

Lincoln Electric LN-25 Service Manual

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LN-25
PIPE
™
For use with machines having Code Numbers:
11779
SERVICE MANUAL
SVM226-A
| Issue D ate 13-Jan
© Lincoln Global, Inc. All Rights Reserved.
NOTE: This manual will cover most of the troubleshooting and repair
procedures for the code numbers listed. Some variances may exist when
troubleshooting/repairing later code numbers.

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Summary of Contents for Lincoln Electric LN-25

  • Page 1 NOTE: This manual will cover most of the troubleshooting and repair procedures for the code numbers listed. Some variances may exist when troubleshooting/repairing later code numbers. LN-25 PIPE ™ For use with machines having Code Numbers: 11779 SERVICE MANUAL SVM226-A | Issue D ate 13-Jan ©...
  • Page 2 Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is available from the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199. BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND REPAIR PROCEDURES ARE PERFORMED ONLY BY QUALIFIED INDIVIDUALS.
  • Page 3 5.e. Read and understand the manufacturer’s instructions for this equipment and the consumables to be used, including the material safety data sheet (MSDS) and follow your employer’s safety practices. MSDS forms are available from your welding distributor or from the manufacturer. 5.f. Also see item 1.b. LN-25™ PIPE...
  • Page 4 6.I. Read and follow NFPA 51B “ Standard for Fire Prevention During Welding, Cutting and Other Hot Work”, available from NFPA, 1 Batterymarch Park,PO box 9101, Quincy, Ma 022690-9101. 6.j. Do not use a welding power source for pipe thawing. Refer to http://www.lincolnelectric.com/safety for additional safety information. LN-25™ PIPE...
  • Page 5 4. Garder tous les couvercles et dispositifs de sûreté à leur place. talons sans revers, et chaussures montantes. 5. Toujours porter des lunettes de sécurité dans la zone de soudage. Utiliser des lunettes avec écrans lateraux dans les zones où l’on pique le laitier. LN-25™ PIPE...
  • Page 6 2004/108/EC. It was manufactured in conformity with a national standard that implements a harmonized standard: EN 60974-10 Electromagnetic Compatibility (EMC) Product Standard for Arc Welding Equipment. It is for use with other Lincoln Electric equipment. It is designed for industrial and professional use. Introduction All electrical equipment generates small amounts of electromagnetic emission.
  • Page 7 Screening of the entire welding installation may be considered for special applica- tions. 1 _________________________ 1 Portions of the preceding text are contained in EN 60974-10: “Electromagnetic Compatibility (EMC) product standard for arc welding equipment.” LN-25™ PIPE...
  • Page 8 Parts Manual ..............P-679 LN-25™ PIPE...

  • Page 9: Table Of Contents

    Power Source to LN-25 Pipe Cable Connection Diagrams ....... . .
  • Page 10 INSTALLATION TECHNICAL SPECIFICATIONS – LN-25™ PIPE (K2614-10) INPUT VOLTAGE AND CURRENT Input Voltage ± 10% Input Amperes 40 VDC RATED OUTPUT @ 104°F (40°C) Duty Cycle Input Amperes 60% rating 100% rating GEARING - WIRE FEED SPEED RANGE-WIRE SIZE GMAW...

  • Page 11: Installation

    INSTALLATION SAFETY PRECAUTIONS The LN-25™ PIPE is rated IP23 and is suitable for out- door use. WARNING The handle of the LN-25™ PIPE is intended for mov- ing the wire feeder about the work place only. ELECTRIC SHOCK can kill. When suspending a wire feeder, insulate the hanging •...

  • Page 12: Cable Connections

    There is one circular connector for the gun trigger on dust, oil or grease. Remove dust and dirt with a the front of the LN-25™ PIPE. clean cloth. DO NOT ATTACH THE REGULATOR IF OIL, GREASE OR DAMAGE IS PRESENT!
  • Page 13 8. Install the outer wire guide by aligning it with the pins and tightening the knurled thumbscrews. CONNECTOR BLOCK SOCKET HEAD 9. Close the idle arm and engage the idle roll pressure CAP SCREW arm. Adjust the pressure appropriately. LOOSEN TIGHTEN LN-25™ PIPE...

  • Page 14: Pressure Arm Adjustment

    • Do not operate with covers, panels or guards removed or open. • Only qualified personnel should perform mainte- nance work. ------------------------------------------------------------------------ ALUMINUM WIRES The LN-25™ PIPE comes with a K1500-2 gun adapter Fe, CrNi CORED WIRES installed. (See Figure A.4) Fe, CrNi STEEL, STAINLESS WIRES To install a gun, 1.

  • Page 15: Power Source To Ln-25 Pipe Cable Connection Diagrams

    INSTALLATION POWER SOURCE TO LN-25™ PIPE CABLE CONNECTION DIAGRAMS CV Power Sources with Stud Connectors and Remote/Local Switch (See Figure A.6) FIGURE A.6 CV-400 CV-655 DC-400 LN™-25 PIPE DC-600 Electrode DC-655 (Across the Arc) V450-Pro SAE 400 with CV adapter...
  • Page 16 FIGURE A.8 LN™-25 PIPE CV-305 Electrode V350-Pro Work clip Work Description Place CV/CC switch in the feeder in the "CV" position. K2614-5 LN-25™ PIPE KP1695-XX KP1696-XX Drive Roll Kit KP1697-XX See Magnum Literature Welding Gun CV power Source K1841 Welding Cables CV Power Source with Twist-Mate Connectors and no Remote/Local Switch.

  • Page 17: Electrode Connection

    ELECTRODE CONNECTION 4. Route the electrode lead through the feeder as shown. The LN-25™ PIPE (CCC) does not include the elec- 5. Assemble the bolt, leads and washers as shown. trode cable. The customer is to install an AWG 2/0 to Discard the extra washers.
  • Page 18 NOTES A-10 A-10 LN-25™ PIPE...
  • Page 19 Rear Controls ...............B-10 LN-25™ PIPE...

  • Page 20: Operation

    • Wear eye, ear and body protec- tion. --------------------------------------------------------------------- INPUT VOLTAGE ADDITIONAL WARNING INFORMATION UNDER ARC WELDING SAFETY PRECAUTIONS AND IN THE FRONT OF THIS OPERATING MANU- OUTPUT VOLTAGE --------------------------------------------------------------------- INPUT CURRENT OUTPUT CURRENT PROTECTIVE GROUND WARNING OR CAUTION LN-25™ PIPE...

  • Page 21: Definition Of Welding Terms

    • Push-pull guns do not work with the wire feeder. The heart of the LN-25™ PIPE is the 2 roll MAX- • The digital displays do not show preset voltage TRAC™ drive. The patented features on the wire drive...

  • Page 22: Case Front Controls

    For best results, keep the gun cable and conduit as Thermal LED straight as possible. Perform regular maintenance and Voltage Display cleaning on the gun liner, conduit and gun. Always use quality electrode, such as L-50 or L-56 from Lincoln Voltage LED Electric. Set-up Push Button LN-25™ PIPE...

  • Page 23: Power-Up Sequence

    A V E R T I S S E M E N T AFTER WELDING The display continues to hold the value of the amper- age or WFS and arc voltage for five seconds after welding stops. The amperage or WFS and voltage dis- plays flash. LN-25™ PIPE...

  • Page 24: Wire Feed Speed Units

    Factory setting is Run-In “OFF”. Model Run-in Wire Feed Speed LN-25™ PIPE 50 in/min When Run-in is “OFF”, the wire feed speed is the same as the welding wire feed speed. Turn Run-In “OFF” for fast, crisp starts, especially when running with .035 or...

  • Page 25: Left Display Selection

    Display Hold. u r r I SP DISPLAY HOLD After welding, the LN-25™ PIPE will hold the last val- ues from welding on the display. The values will con- O O WFS O O WFS...

  • Page 26: Internal Controls

    Pressure Adjustment Arm Optional Timer Kit (See Accessories Section) Spool Retainer Spindle Brake Gun Bushing Thumb Screw for securing the welding Gun Socket Head Cap Screw for securing the Gun Bushing Drive Hubs Inlet Wire Guide Cold Feed Pushbutton LN-25™ PIPE...

  • Page 27: Internal Controls Description

    If the arc goes out while welding with trigger interlock operation, the elec- trode output from the welding power source remains energized and the wire feeder will continue to feed wire until the gun trigger is again pulled and then released. ------------------------------------------------------------------------ LN-25™ PIPE...

  • Page 28: Rear Controls

    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. LN-25™ PIPE...
  • Page 29 Drive Roll Kits ...............C-2 LN-25™ PIPE...
  • Page 30 2-4. For use in power sources for turning the weld terminals "ON" at all times. K2330-2 Timer Kit Includes: Panel and harness for adjusting preflow, burn- back and postflow times K2596-2 Plastic Case Includes: a complete engi- neered plastic case. LN-25™ PIPE...
  • Page 31 #2-#4) Gun Receiver Bushing (for guns Includes: Gun receiver bush- K1500-3 with K613-7 Lincoln gun connec- ing with hose nipple, set tors; Magnum 550 guns and com- screw and hex key wrench. patible with Tweco® #5) LN-25™ PIPE...
  • Page 32 2 male connectors for _" ID hose, and mounting hardware. Includes: Deluxe Gas Regulator K586-1 Deluxe Adjustable Gas Regulator for Mixed Gases, Adapter for CO2 and 10' (3.0m) Hose. K283 Wire Feed Speed Meter Includes: A wire feed speed meter with digital display. LN-25™ PIPE...
  • Page 33 Major Component Location .............D-3 LN-25™ PIPE...
  • Page 34 • Check weld cables, control cables and gas hoses for cuts. • Clean and tighten all weld terminals. PERIODIC MAINTENANCE • Clean drive rolls and inner wire guide and replace if worn. • Blow out or vacuum the inside of the feeder. LN-25™ PIPE...
  • Page 35 MAINTENANCE FIGURE D.1 – MAJOR COMPONENT LOCATIONS 1. Front Panel Assembly 2. Control Box Assembly 3. Spindle & Mast Assembly 4. Wire Drive Assembly 5. Case Assembly LN-25™ PIPE...
  • Page 36 NOTES LN-25™ PIPE...
  • Page 37 Optional Circuits ..............E-6 FIGURE E.1 BLOCK LOGIC DIAGRAM ELECTRODE INPUT CURRENT TRANSDUCER CONTACTOR FEEDPLATE INPUT SOLENOID TIMER OPTION MOTOR TACH MOTOR OVERLOAD ARMATURE CONTROL BOARD TACH FEEDBACK POWER SUPPLY GUN TRIGGER WIRE SPEED COLD TRIGGER FEED INTERLOCK PURGE RUN IN LN-25™ PIPE...
  • Page 38 • Maximum GMAW gun length is 25 ft. protected and dry. • K2330-1 Timer Kits do not work with the feeder. Use The heart of the LN-25™ PIPE is the 2 roll MAX- K2330-2 kits. TRAC™ drive. The patented features on the wire drive •...
  • Page 39 RUN IN INPUT POWER TRIGGER CIRCUIT The LN-25™ PIPE is designed to be used acrosss the When the gun trigger is closed, the control board is sig- arc only. The DC welding voltage is applied from the naled to apply armature voltage to the drive motor and...
  • Page 40 The preset (display) board is powered off the SPI lines once the control board has been powered up. NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion LN-25™ PIPE...
  • Page 41 The wire will feed at the run-in speed until and arc is struck and then will ramp up to the welding speed. NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion LN-25™ PIPE...
  • Page 42 Burnback controls the additional amount of time the power source output remains on after the wire drive has stopped feeding wire. The postflow timer range is zero to 10 seconds. NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion LN-25™ PIPE...
  • Page 43 Retest After Repair ..............F-41 LN-25™ PIPE...

  • Page 44: Troubleshooting And Repair

    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.

  • Page 45: Pc Board Troubleshooting Procedures

    Do not touch electrically hot parts. - If you return a PC board to The Lincoln Electric Company for credit, it must be in the static-shielding bag. This will prevent further damage and allow prop- CAUTION er failure analysis.
  • Page 46 (Across the arc models) CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-888-935-3877. LN-25™ PIPE...
  • Page 47 3. Possible control board problem. CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-888-935-3877. LN-25™ PIPE...
  • Page 48 CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-888-935-3877. LN-25™ PIPE...
  • Page 49 3. Damaged Current Transducer. PCB Test. CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-888-935-3877. LN-25™ PIPE...
  • Page 50 NOTES LN-25™ PIPE...

  • Page 51: Gas Solenoid Test

    GAS SOLENOID TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 52 CONTROL BOX COVER CONTROL BOX COVER SCREWS PROCEDURE 1. Remove the input power from the LN-25™ 6. If the 4VDC is missing or low, check the leads PIPE unit. and connections between the solenoid and the control board. See the Wiring Diagram. If the 2.

  • Page 53: Contactor Test

    CONTACTOR TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 54 CONTROL BOX ASSEMBLY CONTACTOR PROCEDURE 1. Remove power from the LN-25™ PIPE wire 5. Check for the correct voltage at leads 507 and drive unit. 578 at the contactor. Look for 0VDC when the circuit is open and 3VDC when it is closed. See 2.

  • Page 55: Drive Motor And Tach Feedback Test

    DRIVE MOTOR AND TACH FEEDBACK TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 56 CONTROL BOX ASSEMBLY CASE COVER PROCEDURE 1. Remove power from the LN-25™ PIPE wire 7. With the trigger activated and the motor running drive unit. check for 15.6VDC input on the black and red tach leads. Check for 6.2VDC at any speed or 2.

  • Page 57: Motor Overload Test

    MOTOR OVERLOAD TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 58 CONTROL BOX ASSEMBLY CASE COVER PROCEDURE 1. Remove power from the LN-25™ PIPE wire 6. If the amperage exceeds 3.2 amps for more drive unit. than 8 seconds the motor will be disabled. 2. Perform the Case Cover And Control Box 7.

  • Page 59: Preset (Display) Pcb Test

    PRESET (DISPLAY) PCB TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 60 PRESET (DISPLAY) PCB TEST (continued) FIGURE F.5 – FRONT PANEL FRONT PANEL PROCEDURE 1. Remove the input power from the LN-25™ PIPE unit. 2. Perform the Case Cover And Control Box Removal Procedure. 3. Perform the Front Panel Removal Procedure.
  • Page 61 Supply power for J1 (Pin 2) J1 (Pin 10) +5VDC Preset (Display) PCB J6 (Pin 8) J1 (Pin 10) -15VDC 8. If any of the voltages in the above chart are incorrect or zero the control board may be faulty. LN-25™ PIPE...
  • Page 62 NOTES F-20 F-20 LN-25™ PIPE...

  • Page 63: Bridge Rectifier Test

    BRIDGE RECTIFIER TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 64 F-22 BRIDGE RECTIFIER TEST (continued) FIGURE F.7 – FRONT PANEL FRONT PANEL PROCEDURE 1. Remove the input power from the LN-25™ PIPE unit. 2. Perform the Case Cover And Control Box Removal Procedure. 3. Perform the Front Panel Removal Procedure.
  • Page 65 Pin 1 Pins 2 or 4 Open Pins 2 or 4 Pin 1 Short Pins 2 or 4 Pin 3 Open Pin 3 Pins 2 or 4 Short Short = Low Ohm Value Open = High Ohm Value LN-25™ PIPE...
  • Page 66 NOTES F-24 F-24 LN-25™ PIPE...
  • Page 67 REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 68 SCREWS (8) CORD GRIP CONNECTOR PROCEDURE 1. Remove input power from the LN-25™ PIPE unit. 2. Using a 3/8” nutdriver and a 1/2” nutdriver, remove the eight case cover screws (two screws on top, four on left side and two on bot- tom of unit).
  • Page 69 3. Tighten cord grip connector, located on the rear of unit. See Figure F.9. 4. Using a 3/8” nutdriver and 1/2” nutdriver, attach control box assembly to case cover using the eight screws previously removed. See Figure F.9. 5. Close case cover side. LN-25™ PIPE...
  • Page 70 NOTES F-28 F-28 LN-25™ PIPE...

  • Page 71: Wire Drive Motor And Gear Box Removal And Replacement

    REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 72 WIRE DRIVE COVER SCREWS PANEL SCREWS PROCEDURE 1. Remove the input power from the LN-25™ 8. Using a 5/16” nutdriver, remove the four screws PIPE unit. holding the control box cover. See Figure F.11. 2. Perform the Case Cover And Control Box 9.
  • Page 73 4. Replace the plastic drive gear cover. 5. Reconnect the motor and tach leads to har- ness. 6. Reassemble the wire drive panel and the con- trol box using the four 5/16” screws, and one phillips screw previously removed. LN-25™ PIPE...
  • Page 74 NOTES F-32 F-32 LN-25™ PIPE...

  • Page 75: Front Panel Removal And Replacement

    FRONT PANEL REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 76 SCREW SCREW 5/16” NUT REMOVAL PROCEDURE REPLACEMENT PROCEDURE 1. Remove the input power from the LN-25™ 1. Connect the work lead previously removed. PIPE unit. 2. Reconnect the molex plugs. 2. Perform the Case Cover And Control Box 3. Slide the front panel into the control box and Removal Procedure.

  • Page 77: Contactor Removal And Replacement

    CONTACTOR REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 78 BUS BAR CONNECTORS CONTACTOR PROCEDURE REPLACEMENT PROCEDURE 1. Remove the power from the LN-25™ PIPE unit. 1. Loosely connect the bus bars to the new con- tactor. 2. Perform the Case Cover And Control Box Removal Procedure. 2. Reconnect the coil leads. Slide the bus bar into the mounting block and start the bolt by hand.
  • Page 79 PC BOARD REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 80 FIGURE F.15 – CONTROL PC BOARD LOCATION CONTROL BOX CONTROL BOARD CONTROL BOX COVER REMOVAL PROCEDURE 1. Remove the input power from the LN-25™ 4. Locate the control board and remove the har- PIPE unit. ness plugs on the control board. Observe stat- ic electricity precautions.

  • Page 81: Gas Solenoid Removal And Replacement

    GAS SOLENOID REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 82 CONTROL BOX COVER CONTROL BOX COVER SCREWS REMOVAL PROCEDURE REPLACEMENT PROCEDURE 1. Remove the input power from the LN-25™ 1. Install the new solenoid with the attached hard- PIPE unit. ware. 2. Using the 5/16” nutdriver, remove the four 2. Reconnect the gas hose.

  • Page 83: Retest After Repair

    3. Connect the gun to the connector block. OPERATION VERIFICATION WIRE FEED SPEED....50 THROUGH 700 INCHES PER MINUTE VOLTMETER......MUST BE OPERATED BETWEEN 3 TO 12 VDC GAS SOLENOID...MUST OPERATE WHEN GUN TRIGGER IS ACTIVATED CONTACTOR..MUST OPERATE WHEN GUN TRIGGER IS ACTIVATED LN-25™ PIPE...
  • Page 84 Schematic – Preset PC Board (G4748-1F0) .........G-11 / G-12 * NOTE: Many PC Board Assemblies are now totally encapsulated, surface mounted and or multi-layered and are therefore considered to be unserviceable. Assembly drawings of these boards are no longer provided. LN-25™ PIPE...
  • Page 85 ElECTriCal DiaGramS WiriNG DiaGram - COmplETE maChiNE - (G6334-1) WIRING DIAGRAM- LN-25 PIPE MOTOR FILTER P.C. BOARD N.C. 1 2 3 4 50 9D TRIGGER 50 9D INTERLOCK / 66 7D B1 PRESET P.C. BOARD 50 9E 50 9C 2 STEP...
  • Page 86 821A behind PRESET glastic panel FEED The WFS range of the LN-25 Pipe is 40 - 700 ipm. The default P.C. 2 of 2 MOTOR / PLATE range is 40 to 400 ipm for better resolution when setting low end...
  • Page 87 ElECTriCal DiaGramS SChEmaTiC lN-25 pipE - COmplETE maChiNE - (CODE 11779) (G6333-2) pG 2 ENGINEERING CONTROLLED CHANGE DETAIL: RELEASED A.04 FROM "X". MANUFACTURER: LN-25 PIPE, IRONWORKER PRESET P . C. BOARD CIRCUIT SCHEMATIC = G4748 (LOCATED ON CASE FRONT) MOTOR LED DISPLAY DIMS DURING LOW POWER CONDITIONS.
  • Page 88 ElECTriCal DiaGramS SChEmaTiC - lN-25 pipE CONTrOl pC BOarD - CODE 11779 (G4783-1) pG 1 NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. ™ 25 pipE...
  • Page 89 ElECTriCal DiaGramS SChEmaTiC - lN-25 pipE CONTrOl pC BOarD - CODE 11779 (G4783-1) pG 2 NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. ™ 25 pipE...
  • Page 90 ElECTriCal DiaGramS SChEmaTiC - lN-25 pipE CONTrOl pC BOarD - CODE 11779 (G4783-1) pG 3 NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. ™ 25 pipE...
  • Page 91 ElECTriCal DiaGramS SChEmaTiC - lN-25 pipE CONTrOl pC BOarD - CODE 11779 (G4783-1) pG 4 NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. ™ 25 pipE...
  • Page 92 ElECTriCal DiaGramS SChEmaTiC - lN-25 pipE CONTrOl pC BOarD - CODE 11779 (G4783-1) pG 5 NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. ™ 25 pipE...
  • Page 93 G-10 G-10 ElECTriCal DiaGramS SChEmaTiC lN-25 pipE mOTOr FilTEr pC BOarD - CODE 11779 (S27505-1) 1600V 1 J61 470uH 11.4A 470uF 470uF 350V 350V 2 J61 LAST NO. USED GENERAL INFORMATION ELECTRICAL SYMBOLS PER E1537 .022/50V CAPACITORS = UNLESS OTHERWISE SPECIFIED)
  • Page 94 G-11 G-11 ElECTriCal DiaGramS SChEmaTiC lN-25 pipE prESET pC BOarD - (CODE 11779) (G4748) pG 1 NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. ™ 25 pipE...
  • Page 95 G-12 G-12 ElECTriCal DiaGramS SChEmaTiC lN-25 pipE prESET pC BOarD - (CODE 11779) (G4748-1F0) pG 2 NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. ™ 25 pipE...

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