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Lincoln Electric LN-25 PRO IM901-A - 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 !% ...
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Lincoln Electric LN-25 PRO IM901-A - page 2
'*&!& BAI7D767CG;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. _____________________ ...
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Lincoln Electric LN-25 PRO IM901-A - 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 ...
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Lincoln Electric LN-25 PRO IM901-A - 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 ...
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Lincoln Electric LN-25 PRO IM901-A - 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$YD5 1. Protegez-vous contre la secou ...
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Lincoln Electric LN-25 PRO IM901-A - page 6
H H T h a n k Y o u for selecting a )-$!,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! *736F:;E'B7D3FADE %3@G3>5A?B>7F7>K before attempting to use this equipment. Save this manual and keep it ...
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Lincoln Electric LN-25 PRO IM901-A - page 7
H; H; , $''&,&,+ Page –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– !@EF3>>3F;A@ ? ...
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Lincoln Electric LN-25 PRO IM901-A - page 8
!&+, $$ ,!'& $&R(*'*'++, *%'$ ,%(* ,-**& '(*,!'& -40°F to 104°F (-40°C to 40°C) +,'* -40°F to 185°F (-40°C to 85°C) !&(-,.'$ , 3@6-**? ...
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Lincoln Electric LN-25 PRO IM901-A - page 9
/$$+!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 ...
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Lincoln Electric LN-25 PRO IM901-A - page 10
!&+, $$ ,!'& $&R(*'*'++, *%'$ + !$!&+'&&,!'& 0$!&* ?3K 7JB>A67 ;8 63?3976 Q #77B 5K>;@67D GBD;9:F 3@6 5:3;@76FAEGBBADF Q#77B ...
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Lincoln Electric LN-25 PRO IM901-A - page 11
!&+, $$ ,!'& $&R(*'*'++, *%'$ /!**!.'&!-* ,!'& (See Figure A.2) &!& , -& *!.* -+ !& $,*!+ '#53@=;> ...
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Lincoln Electric LN-25 PRO IM901-A - page 12
THUMB SCREW GUN !&+, $$ ,!'& $&R(*'*'++, *%'$ (*++-* *% "-+,%&, $,*!+ '#53@=;>> Q,GD@ F:7 ;@BGF BAI7D ' 3F F:7 I7>6 ;@9 ...
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Lincoln Electric LN-25 PRO IM901-A - page 13
!&+, $$ ,!'& $&R(*'*'++, *%'$ *'++, *+, -(+ (AI7D +AGD57E I;F: 'GFBGF ,7D?;@3>E >I3KE AF+77;9GD7 If the power source has a Remote/Local ...
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Lincoln Electric LN-25 PRO IM901-A - page 14
!&+, $$ ,!'& $&R(*'*'++, *%'$ . (AI7D +AGD57E I;F: +FG6 A@@75FADE 3@6 @A *7?AF7$A53>+I;F5:+77;9GD7 Place CV/CC switch in the feeder in the "CV" position. . ...
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Lincoln Electric LN-25 PRO IM901-A - page 15
!&+, $$ ,!'& $&R(*'*'++, *%'$ . (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. ...
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Lincoln Electric LN-25 PRO IM901-A - page 16
'(* ,!'& $&R(*'*'++, *%'$ Q $,*! + '# & #!$$ -@>7EE GE;@9 '$ 873 FGD7I:7@ 8776;@9I;F: 9G@FD;9 97D F:7 7>75FDA67 3@6 6D; ...
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Lincoln Electric LN-25 PRO IM901-A - page 17
'(* ,!'& $&R(*'*'++, *%'$ !&!,!'&'/$!&,*%+ /+ • Wire Feed Speed Q Constant Current . Q Constant Voltage %/ • Gas Metal Arc welding +%/ Q Shielded Metal Arc ...
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Lincoln Electric LN-25 PRO IM901-A - page 18
'(* ,!'& &$'.'$,%,* The analog voltmeter shows the voltage between electrode and work. On across the arc models, the voltmeter shows open circuit voltage when the wire feeder is not welding. The voltmeter is polarity insensitive and the range is 0 – 40VDC. (See GE ...
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Lincoln Electric LN-25 PRO IM901-A - page 19
%3J;?G?/+ +F3@63D6+B;@ 73D;@9 280 340 440 520 600 %3J;?G?/+ JFD3,ADCG7 73D;@9 210 235 400 400 400 %;@;?G?D5.A>FE 15 V 17 V 21 V 24 V 27 V '(* ,!'& /!*+(#&' The large, calibrated wire feed speed knob makes for ea ...
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Lincoln Electric LN-25 PRO IM901-A - page 20
'(* ,!'& $&R(*'*'++, *%'$ (!&-&,*!*'&&,'* /'*#+&+$ , *%$$%','*'.*$' The th ...
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Lincoln Electric LN-25 PRO IM901-A - page 21
'(* ,!'& !&,*&$'&,*'$+ $&R(*'*'++, *%'$ 12 Step Trigger Interlock Switch 2CV / CC Switch 3Pressure Adjustment Arm 4Optional Timer Kit (See Accessories Section) 5Spool Retainer 6Spindle Brake 7? ...
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Lincoln Electric LN-25 PRO IM901-A - 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 ...
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Lincoln Electric LN-25 PRO IM901-A - page 23
'(* ,!'& $&R(*'*'++, *%'$ '&+, &,-**&,/!*/$!& (See Figure B.3) Most semiautomatic welding processes perform better using constant voltage power sources. Welding codes usually do not address ...
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Lincoln Electric LN-25 PRO IM901-A - page 24
'(* ,!'& **'&,*'$+ $&R(*'*'++, *%'$ 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 ...
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Lincoln Electric LN-25 PRO IM901-A - 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 ...
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Lincoln Electric LN-25 PRO IM901-A - 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 ...
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Lincoln Electric LN-25 PRO IM901-A - 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 ...
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Lincoln Electric LN-25 PRO IM901-A - 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 ...
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Lincoln Electric LN-25 PRO IM901-A - 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 ...
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Lincoln Electric LN-25 PRO IM901-A - 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 ...
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Lincoln Electric LN-25 PRO IM901-A - page 31
++'*!+ $&R(*'*'++, *%'$ !&+, $$ ,!'& ' , # / ,* ''$!&#!, $,*!+ '#53@=;>> Q,GD@ F:7 ;@BGF BAI7D '? ...
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Lincoln Electric LN-25 PRO IM901-A - page 32
$,*!+ '#53@=;>> Q,GD@ F:7 ;@BGF BAI7D ' 3F F:7 I7>6;@9 BAI7D EAGD57 478AD7 ;@EF3>>3F;A@ AD 5:3@9;@9 6D;H7 DA>>E3@6AD9G;67E Q A @AF FAG5: 7>75FD;53>>K >;H7 B3DFE Q /:7@ ;@5:;@9 I;F: F:7 9G@? ...
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Lincoln Electric LN-25 PRO IM901-A - page 33
%!&,&& The LN-25™ PRO flow meter cannot be calibrated. If the flow meter reads incorrectly, check for leaks or ki nks in the gas hose. Replace the flow meter if neces- sary. /;D7776+B776.3>;63F;A@ (See Figure D.1) Calibration of the LN-25™ PRO may be required when the p.c. board, wir ...
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Lincoln Electric LN-25 PRO IM901-A - page 34
,*'-$+ '',!& $&R(*'*'++, *%'$ 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;5735;>;FK for t ...
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Lincoln Electric LN-25 PRO IM901-A - 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> ...
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Lincoln Electric LN-25 PRO IM901-A - 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> ...
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Lincoln Electric LN-25 PRO IM901-A - 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> ...
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Lincoln Electric LN-25 PRO IM901-A - 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 ...
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Lincoln Electric LN-25 PRO IM901-A - 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 ...
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Lincoln Electric LN-25 PRO IM901-A - page 40
!%&+!'&(*!&, $&R(*'*'++, *%'$ 17.19 8.65 16” CIRCLE 12” x 18” ELLIPSE 23.17 14.81 17. 19 8. 65 16” C IR CL E 12” x 18 ” E LLI P S E 23 .17 1 4 .81 ...
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Lincoln Electric LN-25 PRO IM901-A - page 41
&',+ $&R(*'*'++, *%'$ ...
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Lincoln Electric LN-25 PRO IM901-A - page 42
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 ...
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Lincoln Electric LN-25 PRO IM901-A - 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 ...
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Lincoln Electric LN-25 PRO IM901-A - 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 • ...
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