Related Manuals for Lincoln Electric LN-25 SVM114-C
Summary of Contents for Lincoln Electric LN-25 SVM114-C
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Page 1: Service Manual
RETURN TO RETURN TO MAIN INDEX MAIN MENU SVM114-C LN-25 PORTABLE CV/CC ™ SEMIAUTOMATIC WIRE FEEDER SERVICE MANUAL Copyright © Lincoln Global Inc. - Page 6 RETURN TO MAIN MENU...
- Page 10 Accessories Section...
- Page 15 REMOTE WIRE SPEED ARC VOLTAGE DIAL RANGE CONTROL SWITCH (OPTIONAL) GAS POST/ PRE FLOW TIMERS (OPTIONAL) ELECTRODE POLARITY SWITCH FITTING (OPTIONAL) TRIGGER AMPHENOL CONNECTOR WIRE SPEED DIAL VOLT METER WORK CLIP LEAD CONNECTION BLOCK OPTIONAL GAS INPUT FITTING GAS PURGE BUTTON ELECTRODE CABLE...
- Page 16 Accessories section. Accessories Section. Accessories Section. Accessories Section...
- Page 17 Loading Wire Drive Section. Loading Wire Drive section Figure B.2...
- Page 18 2" O.D. MOLDED ADAPTER SPINDLE RETAINING SPRING THREAD LOCKING COLLAR BRAKE HOLDING PIN (MUST ENGAGE HOLE IN ADAPTER RIB) GROOVES READI-REEL INSIDE CAGE WIRES...
- Page 19 DESIRED IN/MIN ARC VOLTS USED 50 100 150 200 250 300 350 400 450 500 550 600 650 700 Figure B.4...
- Page 20 Setting Constant Wire Feed Speed Section Setting Arc Sensing Wire Feed Speed Section...
- Page 24 Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ Œ...
- Page 28 STYLE "A" CONNECTOR MUST BE INSULATED IN THIS AREA 2.00 LN-25 Connector for 1/16 (.062) through 5/64 Wire STYLE "B" LN-25 Cable Connector for .023 through .052 Wire (For all other dimensions, see above) .749 D. .747 .62 D. .03 x 45 .06R.
- Page 30 Automatic Protection Shutdown...
- Page 31 Drive Motor and Gearbox Replacement Procedure Hall Effect Module...
- Page 33 COLD OPTIONAL INCH CONTACTOR SWITCH BOARD ELECTRODE INPUT CABLE VOLT TO WORK METER CONTROL SENSING LEAD BOARD WIRE FEED MODE SWITCH SOLENOID PC BOARD EARLY MODELS ONLY - LATER MODELS HAVE CIRCUITRY OPTIONAL CONTACTOR CONDUCTOR BLOCK HALL EFFECT MODULE ARMATURE VOLTAGE RPM FEEDBACK RANGE SWITCH...
- Page 34 COLD INCH SWITCH ELECTRODE INPUT CABLE VOLT TO WORK METER SENSING LEAD WIRE FEED MODE SWITCH OPTIONAL CONTACTOR OPTIONAL CONTACTOR BOARD ARMATURE VOLTAGE RPM FEEDBACK CONTROL BOARD RANGE SWITCH WIRE SPEED CONTROL SOLENOID PC BOARD SOLENOID EARLY MODELS ONLY - LATER MODELS HAVE CIRCUITRY INCLUDED ON CONTROL BOARD GUN CABLE CONDUCTOR...
- Page 35 COLD INCH SWITCH ELECTRODE INPUT CABLE VOLT TO WORK METER SENSING LEAD WIRE FEED MODE SWITCH OPTIONAL CONTACTOR OPTIONAL CONTACTOR BOARD ARMATURE VOLTAGE RPM FEEDBACK CONTROL BOARD RANGE SWITCH WIRE SPEED CONTROL SOLENOID PC BOARD SOLENOID EARLY MODELS ONLY - LATER MODELS HAVE CIRCUITRY INCLUDED ON CONTROL BOARD CONDUCTOR GUN CABLE...
- Page 36 COLD INCH SWITCH ELECTRODE INPUT CABLE VOLT TO WORK METER SENSING LEAD WIRE FEED MODE SWITCH OPTIONAL CONTACTOR OPTIONAL CONTACTOR BOARD ARMATURE VOLTAGE RPM FEEDBACK CONTROL BOARD RANGE SWITCH WIRE SPEED CONTROL SOLENOID PC BOARD SOLENOID EARLY MODELS ONLY - LATER MODELS HAVE CIRCUITRY INCLUDED ON CONTROL BOARD CONDUCTOR GUN CABLE...
- Page 40 Step 1. LOCATE PROBLEM (SYMPTOM). Step 2. PERFORM EXTERNAL TESTS. Step 3. RECOMMENDED COURSE OF ACTION...
- Page 46 (continued) CASE DOOR CONTROL BOX COVER SCREW line 37 5 SCREW WIRE REEL RETAINING COLLAR...
- Page 47 (continued) SOLENOID LEADS SOLENOID LEADS...
- Page 48 (continued) ELECTRODE CABLE POLARITY SWITCH WORK SENSING LEAD...
- Page 49 M15202 M15202 624A (continued) 624A 624A...
- Page 52 (continued) CONTROL BOX COVER SCREW line SCREWS SCREW WIRE REEL RETAINING COLLAR...
- Page 53 (continued) SOLENOID LEADS...
- Page 54 POLARITY SWITCH WORK SENSING LEAD (continued) ELECTRODE CABLE...
- Page 55 (continued)
- Page 58 (continued) G2196 G2196 G1757 G1757...
- Page 59 (continued) Contactor...
- Page 62 DRIVE MOTOR LEAD IN-LINE CONNECTOR HALL EFFECT MODULE LEAD IN-LINE CONNECTOR...
- Page 64 (continued) IN-LINE CONNECTORS...
- Page 65 (continued) S20963 S20963 #667 #621 CONTACTOR CONTACTOR COIL LEADS COIL LEADS...
- Page 66 See Figure F.16...
- Page 67 (continued) Contactor...
- Page 70 (continued)
- Page 71 G1757 G1757...
- Page 72 (continued) CONTACTOR PC BOARD ASSEMBLY SCREW...
- Page 74 (continued) G2196 G2196 See Figure F.22. G1757 G1757...
- Page 75 Contactor...
- Page 76 (continued) CONTROL PC BOARD SCREW See Figure F.22.
- Page 78 11/16" BRASS NUTS IN-LINE CONNECTORS VOLTAGE SENSING LEAD 67 REEL STAND ASSEMBLY WELDING CABLES CONTACTOR BAFFLE 5/16" SCREW...
- Page 80 11/16" BRASS NUTS IN-LINE CONNECTORS POLARITY SWITCH WORK SENSING LEAD ELECTRODE CABLE VOLTAGE SENSING LEAD #67 ELECTRODE LEAD WELDING CABLES CONTACTOR...
- Page 82 (continued) SOLENOID GAS SOLENOID PC BOARD VALVE PURGE SWITCH LEADS SOLENOID LEADS PLUG J11...
- Page 83 (continued) SOLENOID PC BOARD SOLENOID LEADS PURGE SWITCH LEADS BRASS FITTING GAS SOLENOID VALVE GAS SOLENOID NIPPLE GAS HOSE GAS SOLENOID VALVE MOUNTING SCREW GAS SOLENOID ASSEMBLY BRACKET...
- Page 84 GAS SOLENOID VALVE GAS SOLENOID NIPPLE GAS HOSE GAS SOLENOID ASSEMBLY BRACKET GAS SOLENOID VALVE MOUNTING SCREW PC BOARD MOUNTING SCREW (continued) BRASS FITTING GAS SOLENOID ASSEMBLY MOUNTING SCREW SOLENOID PC BOARD...
- Page 86 MYLAR INSULATION ELECTRODE CABLE 1/2" BOLT IN-LINE CONNECTORS WIRE DRIVE ASSEMBLY WIRE DRIVE ASSEMBLY MOUNTING BOLTS (4 PLACES)
- Page 87 (continued) G1757 G1757...
- Page 88 (continued) DRIVE MOTOR HALL EFFECT MODULE GEARBOX REAR END PLATE LOCKWASHER FLAT WASHER END PLATE MOUNTING SCREW LOCKWASHER DRIVE MOTOR MOUNTING SCREW...
- Page 92 N.B., N.D., COLD INCH 530C PUSHBUTTON SWITCH 500C 530A N.M . OPTIONAL TIMER PLUG N.G. VOLTMETER N.H . 622A TRIGGER N.B. 500A CONNECTOR BLACK POLARITY WORK CLIP SWITCH PURGE PUSHBUTTON N.L. N.D. N.L. SOLENOID VALVE N.F. N.F. ESD SNUBBER N.J.,N.K INPUT N.B.
- Page 93 This diagram is for reference only. It may not be accurate for all machines covered by this manual. The wiring diagram specific to your code is pasted inside one of the enclosure panels of your machine. ¤ ¤...
- Page 94 This diagram is for reference only. It may not be accurate for all machines covered by this manual. The wiring diagram specific to your code is pasted inside one of the enclosure panels of your machine. ¤ ¤...
- Page 95 This diagram is for reference only. It may not be accurate for all machines covered by this manual. The wiring diagram specific to your code is pasted inside one of the enclosure panels of your machine. ¤ ¤...
- Page 96 G5366 CHANGE DETAIL: ENGINEERING CONTROLLED MANUFACTURER: LN-25 ACROSS THE ARC MODEL CODES 11144, 11145, 11146 Wire Drive Circuit Positive Voltage Feedback TOROI D Located behind the insulating wire drive panel. Remove the wire drive ably to gain access. Located behind the wire drive (European Models Only) TOROI D Not a PC board;...
- Page 97 This diagram is for reference only. It may not be accurate for all machines covered by this manual. ¤ ¤...
- Page 98 This diagram is for reference only. It may not be accurate for all machines covered by this manual. ¤ ¤...
- Page 99 This diagram is for reference only. It may not be accurate for all machines covered by this manual. ¤ ¤...
- Page 100 This diagram is for reference only. It may not be accurate for all machines covered by this manual. ¤ ¤...
- Page 101 Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician.
- Page 102 Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician.
- Page 103 Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician.
- Page 104 Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician.
- Page 105 DIODES = 1A, 400V (UNLESS OTHERWISE SPECIFIED) SUPPLY VOLTAGE NET POWER SUPPLY SOURCE POINT COMMON CONNECTION FRAME CONNECTION EARTH GROUND CONNECTION EQUIP. LN-25 THE LINCOLN ELECTRIC CO. TYPE CONTACTOR SCHEMATIC CLEVELAND, OHIO U.S.A. SUBJECT NONE SCALE SHT. 9/28/90 DATE CHK.
- Page 106 STANDARD This print is Current This diagram is for reference only. It may not be accurate for all machines covered by this manual. ¤ ¤...
- Page 107 This diagram is for reference only. It may not be accurate for all machines covered by this manual. ¤ ¤...
- Page 108 This diagram is for reference only. It may not be accurate for all machines covered by this manual. ¤ ¤...
- Page 109 Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician.
- Page 110 Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician.
- Page 111 Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician.