Lincoln Electric R3R 375-I manual

IDEALARC ® R3R 375-I, 500-I AND 600-I OPERA T OR’S MANUAL IM410-D June, 2009 Safety Depends on Y ou Lincoln arc welding and cutting equipment is designed and built with safety in mind. However , your overall safety can be increased by proper installation ... and thoughtful operation on you r part . DO NO T INST ALL, OPERA TE OR REP AIR THIS EQUI[...]

i SAFETY i 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, well-ventilated areas or vent the engine exhaust fumes outdoors. ____________________________________[...]

ii SAFETY ii ARC R A Y S can bur n. 4.a. Use a shield with the proper f ilter and co ver plates t o prot ect your e yes fr om sparks and the ra ys of the ar c when welding or observing open arc welding . Headshield and filter lens should conform to ANSI Z87 . I standar ds. 4.b . Use suitab le clothing made from dur able flame-r esistant material to[...]

iii SAFETY iii IDEALARC® R3R 375-I, 500-I AND 600-I FOR ELECTRIC ALL Y pow ered equipment. 8.a. T urn off input po wer using the disconnect switch at the fuse bo x before w orking on the equipment. 8.b . Install equipment in accordance with the U .S. National Electrical Code, all local codes and the manuf acturer’s recommendations . 8.c. Ground [...]

iv SAFETY iv Mar . ‘93 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- antes: Sûreté Pour Soudage A L ’Arc 1. Protegez-vous contre la secousse électrique: a. L[...]

v v Thank Y ou f or selecting a QU ALITY product b y Lincoln Electric. We want y ou to t ake pride in operating this Lincoln Electric Compan y product ••• as much pride as we hav e in br inging this product t o you! Read this Oper ators Manual complet ely bef ore at tempting to use this equipment. Sa v e this manual and k eep it handy f or qu[...]

vi T ABLE OF CONTENTS IDEALARC® R3R 375-I, 500-I AND 600-I vi Page I n s t a l l a t i o n .........................................................S e c t i o nA I n p u t P o w e r C o n n e c t i o n .................................................A - 1 D u t y C y c l e ............................................................ A - 1 O u t [...]

A-1 INST ALLA TION IDEALARC® R3R 375-I, 500-I AND 600-I A-1 INST ALLA TION F ALLING EQUIPMENT can cause injury . • Do not lift this machine using lift bail if it is equipped with a heavy • accessory such as trailer or gas cylinder . • Lift only with equipment of adequate lifting capacity . • Be sure machine is stable when lifting. The mach[...]

B-1 OPERA TION B-1 OPERA TION ELECTRIC SHOCK can kill. • Do not touch electrically live parts or electrode with skin or wet cloth- ing. • Insulate yourself from work and ground. • Always wear dry insulating gloves. FUMES AND GASES can be danger- ous. • Keep your head out of fumes. • Use ventilation or exhaust to • remove fumes from brea[...]

B-2 OPERA TION B-2 B. ARC FORCE CONTROL DIAL Arc Force Increase/Decrease of Arc Force C. OUTPUT CURRENT CONTROL DIAL Output Current D. OUTPUT CURRENT CONTROL RANGE SWITCH (R3R 500-I and R3R 600-I only) Output Current Control Dial Range A Output Current Control Dial Range B E. OUTPUT CURRENT CONTROL “MACHINE- REMOTE” SWITCH Remote Output Current[...]

C-1 ACCESSORIES C-1 OPTIONAL EQUIPMENT K857 – REMOTE CURRENT CONTROL The K857 consists of a control box with 8.5 m (28 ft) of four conductor cable and a 6 pin Amphenol for easy connection to the front of the power source. The K857 will give the same control as the current con- trol on the machine depending on the position of the current dial sele[...]

D-1 MAINTENANCE D-1 ELECTRIC SHOCK can kill. • Have an electrician install and ser- vice this equipment. • T urn the input power off at the fuse box before working on equipment. • Do not touch electrically hot parts. ROUTINE MAINTENANCE 1. The fan motor has sealed bearings which require no service. 2. In extremely dusty locations, dirt may cl[...]

E-1 TROUBLESHOOTING E-1 IDEALARC® R3R 375-I, 500-I AND 600-I If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed. CAUTION This T roubleshooting Guide is provided to hel[...]

E-2 TROUBLESHOOTING E-2 IDEALARC® R3R 375-I, 500-I AND 600-I Observe all Safety Guidelines detailed througout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you pr[...]

E-3 TROUBLESHOOTING E-3 IDEALARC® R3R 375-I, 500-I AND 600-I Observe all Safety Guidelines detailed througout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you pr[...]

E-4 TROUBLESHOOTING E-4 IDEALARC® R3R 375-I, 500-I AND 600-I Observe all Safety Guidelines detailed througout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you pr[...]

E-5 TROUBLESHOOTING E-5 IDEALARC® R3R 375-I, 500-I AND 600-I Observe all Safety Guidelines detailed througout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you pr[...]

E-6 TROUBLESHOOTING E-6 IDEALARC® R3R 375-I, 500-I AND 600-I Observe all Safety Guidelines detailed througout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you pr[...]

E-7 TROUBLESHOOTING E-7 IDEALARC® R3R 375-I, 500-I AND 600-I Low output, low OCV , or erratic welding T urn control dial to minimum Check OCV OCV is 35-55V OCV is 40-45V OCV is 0 Rated OCV but OCV less than rated erratic welding but more than 55V OCV 45-55V OCV 35-45V Possible machine Check leads 76, 77, Possible Loose lead Possible intermittent P[...]

E-8 TROUBLESHOOTING E-8 TROUBLESHOOTING PROCEDURES A. PROCEDURE FOR REPLACING PC BOARDS When a PC board is to be replaced, the following procedure must be followed: 1. Visually inspect PC board in question. Are any of the components damaged? Is a conductor on the back side of the board damaged? a. If there is no damage to the PC board, insert a new[...]

E-9 TROUBLESHOOTING E-9 (high resistance value). This indicates that the capacitor in the snubber circuit is taking a charge. 3. If the needle stays to the right, the capacitor is shorted and the assembly is defective. 4. If the needle does not move, the capacitor is open and the assembly is defective. G. CHECKING CURRENT CONTROL RHEOST A T ON MACH[...]

E-10 TROUBLESHOOTING E-10 2. POWER DIODE TEST a. Establish the polarity of the ohmmeter leads and set to X10 scale. b. Connect the ohmmeter positive lead to anode and negative lead to the cathode. c. Reverse the leads of the ohmmeter from Step b. d. A shorted diode will indicate zero or an equal- ly low resistance in both directions. An open diode [...]

F-1 WIRING DIAGRAMS F-1 IDEALARC® R3R 375-I, 500-I AND 600-I NOTE: 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. ELECTRICAL SY MBOLS PER E1537 LEGEND D5 D 6 D 7 POCKET AMPT ROL SE NSING BRID[...]

F-2 WIRING DIAGRAMS IDEALARC® R3R 375-I, 500-I AND 600-I F-2 NOTE: 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.[...]

F-3 WIRING DIAGRAMS IDEALARC® R3R 375-I, 500-I AND 600-I F-3 R3R 375-I, 500-I and 600-I K817 or K817R (K841 not shown) Part No. T ype AB C D F G H M12244-7 R3R 32.00 15.39 3092 1.44 30.02±.1 1 33.07±.06 .94 M12244-7 7-7-78[...]

IDEALARC® R3R 375-I, 500-I AND 600-I W ARNING A VISO DE PRECAUCION A TTENTION W ARNUNG A TENÇÃO Spanish French German Portuguese Japanese Chinese Korean Arabic READ AND UNDERST AND THE MANUF ACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES. SE RECOMIENDA LEER Y ENTENDER LAS I[...]

IDEALARC® R3R 375-I, 500-I AND 600-I W ARNING A VISO DE PRECAUCION A TTENTION W ARNUNG A TENÇÃO Spanish French German Portuguese Japanese Chinese Korean Arabic LEIA E COMPREENDA AS INSTRUÇÕES DO F ABRICANTE P ARA ESTE EQUIP AMENTO E AS P ARTES DE USO, E SIGA AS PRÁTICAS DE SEGURANÇA DO EMPREGADOR. ● Keep y our he ad out o f fume s. ● Use[...]

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