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Lincoln Electric LN-25 PRO IM901-A manual

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Table of contents for the manual

  • Page 1

    '(* , '*Y+X%&-$ • Sales and Service through Subsidiaries and Distributors Worldwide • Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com • World's Leader in Welding and Cutting Products • Copyright © Lincoln Global Inc. LN-25 ™  PRO !%[...]

  • Page 2

    '*&!& BAI7D767CG;B?7@F 1.a. Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ____________________________________________________ 1.b. Operate engines in open, well-ventilated areas or vent the engine exhaust fumes outdoors. _____________________[...]

  • Page 3

    ;; +,0 ;; ARC R A Y S can bur n. 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 standards. 4. b . Use suitable clothing made from durable flame-resistant material to protec[...]

  • Page 4

    ;;; +,0 ;;; FOR ELECTRIC ALL Y pow ered equipment. 8.a. Turn 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 and the manufacturer’s recommendations. 8.c. Ground the equipment in accordance with the [...]

  • Page 5

    ;H +,0 ;H (*M-,!'&++W*,M 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- antes: +OD7FN(AGD+AG6397$YD5 1. Protegez-vous contre la secou[...]

  • Page 6

    H H T h a n k Y o u for selecting a )-$!,0 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! *736F:;E'B7D3FADE %3@G3>5A?B>7F7>K before attempting to use this equipment. Save this manual and keep it[...]

  • Page 7

    H; H; , $''&,&,+ Page –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– !@EF3>>3F;A@ ?[...]

  • Page 8

     !&+, $$ ,!'&  $&R(*'*'++, *%'$ ,%(* ,-**& '(*,!'& -40°F to 104°F (-40°C to 40°C) +,'* -40°F to 185°F (-40°C to 85°C) !&(-,.'$ , 3@6-**?[...]

  • Page 9

    /$$+!1 Table A.1 located below are copper cable sizes rec- ommended for different currents and duty cycles. Lengths stipulated are the distance from the welder to work and back to the welder again. Cable sizes are increased for greater lengths primarily for the purpose of minimizing cable drop. ** Tabled values are for op[...]

  • Page 10

     !&+, $$ ,!'& $&R(*'*'++, *%'$  + !$!&+'&&,!'& 0$!&* ?3K 7JB>A67 ;8 63?3976 Q #77B 5K>;@67D GBD;9:F 3@6 5:3;@76FAEGBBADF Q#77B[...]

  • Page 11

     !&+, $$ ,!'& $&R(*'*'++, *%'$  /!**!.'&!-* ,!'& (See Figure A.2)  &!& ,  -& *!.* -+ !& $,*!+ '#53@=;>[...]

  • Page 12

    THUMB SCREW GUN  !&+, $$ ,!'& $&R(*'*'++, *%'$  (*++-* *% "-+,%&, $,*!+ '#53@=;>> Q,GD@ F:7 ;@BGF BAI7D ' 3F F:7 I7>6 ;@9 [...]

  • Page 13

     !&+, $$ ,!'& $&R(*'*'++, *%'$  *'++,  *+, -(+  (AI7D +AGD57E I;F: 'GFBGF ,7D?;@3>E >I3KE AF+77;9GD7 If the power source has a Remote/Local [...]

  • Page 14

     !&+, $$ ,!'& $&R(*'*'++, *%'$  . (AI7D +AGD57E I;F: +FG6 A@@75FADE 3@6 @A *7?AF7$A53>+I;F5:+77;9GD7 Place CV/CC switch in the feeder in the "CV" position. . [...]

  • Page 15

     !&+, $$ ,!'& $&R(*'*'++, *%'$  . (AI7D +AGD57 I;F: ,I;EF%3F7 A@@75FADE 3@6 @A*7?AF7$A53>+I;F5:+77;9GD7 Place CV/CC switch in the feeder in the "CV" position.[...]

  • Page 16

     '(* ,!'& $&R(*'*'++, *%'$  Q  $,*! + '# & #!$$ -@>7EE GE;@9 '$  873 FGD7I:7@ 8776;@9I;F: 9G@FD;9 97D F:7 7>75FDA67 3@6 6D;[...]

  • Page 17

     '(* ,!'&  $&R(*'*'++, *%'$ !&!,!'&'/$!&,*%+ /+ • Wire Feed Speed  Q Constant Current . Q Constant Voltage %/ • Gas Metal Arc welding +%/ Q Shielded Metal Arc [...]

  • Page 18

     '(* ,!'&  &$'.'$,%,* The analog voltmeter shows the voltage between electrode and work. On across the arc models, the voltmeter shows open circuit voltage when the wire feeder is not welding. The voltmeter is polarity insensitive and the range is 0 – 40VDC. (See GE[...]

  • Page 19

    %3J;?G?/+ +F3@63D6+B;@ 73D;@9 280 340 440 520 600 %3J;?G?/+ JFD3,ADCG7 73D;@9 210 235 400 400 400 %;@;?G?D5.A>FE 15 V 17 V 21 V 24 V 27 V  '(* ,!'&  /!*+(#&' The large, calibrated wire feed speed knob makes for ea[...]

  • Page 20

     '(* ,!'&  $&R(*'*'++, *%'$ (!&-&,*!*'&&,'* /'*#+&+$ , *%$$%','*'.*$' The th[...]

  • Page 21

     '(* ,!'&  !&,*&$'&,*'$+ $&R(*'*'++, *%'$ 12 Step Trigger Interlock Switch 2CV / CC Switch 3Pressure Adjustment Arm 4Optional Timer Kit (See Accessories Section) 5Spool Retainer 6Spindle Brake 7?[...]

  • Page 22

     '(* ,!'&  !&,*&$'&,*'$++*!(,!'& (See Figure B.2) +F7B,D;997D!@F7D>A5=+I;F5: The 2 Step - Trigger Interlock switch changes the function of the gun trigger. 2 Step trigger opera- tion turns welding on and off in direct response to the[...]

  • Page 23

     '(* ,!'&  $&R(*'*'++, *%'$ '&+, &,-**&,/!*/$!& (See Figure B.3) Most semiautomatic welding processes perform better using constant voltage power sources. Welding codes usually do not address[...]

  • Page 24

     '(* ,!'&  **'&,*'$+ $&R(*'*'++, *%'$ 1 Gas Purge Pushbutton 2 Flow Meter Ball 4 Shielding Gas Inlet 3 Flow Meter Valve 6 Optional Water cooled gun connections 5 Electrode Lead ITEM DESCRIPTION 1 2 3 4 5 6 1 Gas Purge P[...]

  • Page 25

     '(* ,!'&  +(-*(-+ -,,'& 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[...]

  • Page 26

     ++'*!+  $&R(*'*'++, *%'$ /!*,0( Steel Wires: Cored Wires: Aluminum Wires: $,*'+!1 .023-.030 (0.6-0.8mm) .035 (0.9mm) .045 (1.2mm) .052 (1.4mm) 1/16 (1.6mm) .035,.045 (0.9, 1.2mm) .040 (1.0mm) .030-.035" (0.8[...]

  • Page 27

     ++'*!+  $&R(*'*'++, *%'$ K1796-xx K2593-xx K1803-1 K1840-xx K1842-xx AWG 1/0 Co-Axial Power Cable AWG #1 Coaxial Power Cable Work and Feeder Cables Package Weld Power Cable, Twist-Mate to Lug Weld Power Cable, Lug to Lug Includes: 1/0 Coaxial weld[...]

  • Page 28

     ++'*!+  $&R(*'*'++, *%'$ K1797-xx K2335-1 K484 K1520-1 (requires Digital Meter/remote control kit) K1798 (requires remote control kit Control Cable Adapter for Competitive Power Sources Jumper Plug Kit 42 Volt Transformer Kit Adapter Cable for Con[...]

  • Page 29

     ++'*!+  $&R(*'*'++, *%'$ K910-1 K910-2 K1500-1 K1500-2 K1500-3 Ground Clamp Ground Clamp Gun Receiver Bushing (for guns with K466-1 Lincoln gun connec- tors; Innershield and Subarc guns) Gun Receiver Bushing (for guns with K466-2, K466-10 Lincoln [...]

  • Page 30

     ++'*!+  $&R(*'*'++, *%'$ K1500-4 K1500-5 K489-7 K435 K468 K590-6 K586-1 Gun Receiver Bushing (for gun with K466-3 Lincoln gun connec- tors; compatible with Miller® guns.) Gun Receiver Bushing (compatible with Oxo® guns.) Gun Receiver Bushing (fo[...]

  • Page 31

     ++'*!+  $&R(*'*'++, *%'$ !&+, $$ ,!'& ' ,  # /  ,* ''$!&#!, $,*!+ '#53@=;>> Q,GD@ F:7 ;@BGF BAI7D '?[...]

  • Page 32

    $,*!+ '#53@=;>> Q,GD@ F:7 ;@BGF BAI7D ' 3F F:7 I7>6;@9 BAI7D EAGD57 478AD7 ;@EF3>>3F;A@ AD 5:3@9;@9 6D;H7 DA>>E3@6AD9G;67E Q A @AF FAG5: 7>75FD;53>>K >;H7 B3DFE Q /:7@ ;@5:;@9 I;F: F:7 9G@?[...]

  • Page 33

     %!&,&&  The LN-25™ PRO flow meter cannot be calibrated. If the flow meter reads incorrectly, check for leaks or ki nks in the gas hose. Replace the flow meter if neces- sary. /;D7776+B776.3>;63F;A@ (See Figure D.1) Calibration of the LN-25™ PRO may be required when the p.c. board, wir[...]

  • Page 34

     ,*'-$+ '',!&  $&R(*'*'++, *%'$ If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your $A53>$;@5A>@GF:AD;L76;7>6+7DH;5735;>;FK for t[...]

  • Page 35

     ,*'-$+ '',!&  $&R(*'*'++, *%'$ Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your $A53>$;@5A>[...]

  • Page 36

     ,*'-$+ '',!&  $&R(*'*'++, *%'$ Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your $A53>$;@5A>[...]

  • Page 37

     ,*'-$+ '',!&  $&R(*'*'++, *%'$ Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your $A53>$;@5A>[...]

  • Page 38

     !*%+  $&R(*'*'++, *%'$ &', : 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 dia[...]

  • Page 39

     !*%+  $&R(*'*'++, *%'$ &', : 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 dia[...]

  • Page 40

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  • Page 41

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    W ARNING A VISO DE PREC A UCION A TTENTION W ARNUNG A TENÇÃO Spanish French German Portuguese Japanese Chinese Korean Arabic READ AND UNDERST AND THE MANUF A CTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE USED AND FOLL O W Y OUR EMPL O YER’S SAFETY PRA CTICES. SE RECOMIEND A LEER Y ENTENDER LAS INS TRUCCIONES DEL F ABRICANT[...]

  • Page 43

    W ARNING A VISO DE PREC A UCION A TTENTION W ARNUNG A TENÇÃO Spanish French German Portuguese Japanese Chinese Korean Arabic LEIA E COMPREEND A AS INS TRUÇÕES DO F ABRIC ANTE P ARA ESTE EQ UIP AMENT O E A S P ARTES DE USO , E SIGA AS PRÁTIC AS DE SE GUR ANÇA DO EMPREG ADOR. • Kee p yo ur h ead out of fum es. • Use ven tila tio n or exh au[...]

  • Page 44

    • Sales and Service through Subsidiaries and Distributors Worldwide • Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com • World's Leader in Welding and Cutting Products •[...]