Lincoln Electric R3R-300 manuals
Power Tools > Welder
When we buy new device such as Lincoln Electric R3R-300 we often through away most of the documentation but the warranty.
Very often issues with Lincoln Electric R3R-300 begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Welder Lincoln Electric R3R-300 is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Welder on our side using links below.
Lincoln Electric R3R-300 Service Manual
108 pages 1.46 Mb
SVM139-AJune 1998 Safety Depends on You SERVICE MANUAL IDEALARC R3R-300, -400 and -500i i FOR ENGINE powered equipment. 2 WARNING14 {{INPUT FIGURE A.3 - INPUT CONNECTION DIAGRAM FOR 208, 208/230 and 230/460 VOLTS AC, 50/60 HZIMPORTANT: CHANGE LINK POSITIONS AND PILOT TRANSFORMER CONNECTIONS. L2 INPUTGND H2NOTE: MACHINES ARE SHIPPED FROM FACTORY CONNECTED FOR OVER 300 VOLTS INPUT SUPPLY CONNECTION DIAGRAM CONNECTION FOR LOWEST RATING PLATE VOLTAGE, 50 OR 60 HZ.THE LINCOLN ELECTRIC CO., CLEVELAND OHIO U.S.A. CONNECTION FOR HIGHEST RATING PLATE VOLTAGE, 50 OR 60 HZ.LINKremoved servicing Do not operate with covers Disconnect input power before DUAL VOLTAGE MACHINE RECONNECT PROCEDURE 15 OUTPUT CONNECTIONS (STICK, TIG, AIR/CARBON ARC CUTTING)17 - OPERATION SECTION -23 - ACCESSORIES SECTION -24 ACCESSORIESOPTIONS/ACCESSORIESFACTORY INSTALLED OPTIONS FIELD INSTALLED OPTIONS TIG WELDING OPTIONS 26 MAINTENANCESAFETY PRECAUTIONS ROUTINE AND PERIODIC MAINTENANCE 27 MAINTENANCED-3 D-3 FIGURE D.1 GENERAL COMPONENT LOCATIONS Section E-1 Section E-1 29 - THEORY OF OPERATION SECTION -35 - TROUBLESHOOTING & REPAIR SECTION -79 TROUBLESHOOTING REASSEMBLY SCR/DIODE RECTIFICER ASSEMBLY REMOVAL AND REPLACEMENT (continued) 80 SCR REMOVAL AND REPLACEMENT86 MOUNTING OF STUD TYPE DIODES TO ALUMINUM HEAT SINKS87 MOUNTING OF STUD TYPE DIODES TO ALUMINUM HEAT SINKS (continued)88 MAIN TRANSFORMER REMOVAL AND REPLACEMENT95 RETEST AFTER REPAIR (R3R 300)96 RETEST AFTER REPAIR (R3R 400)97 RETEST AFTER REPAIR (R3R 500)G-3 101 -INPUT CONTACTOR BRIDGE TP1 TRANSIENT PROTECTOR D8 ICR INPUT STARTER .4 OHM POCKET AMPTROL SENSING RESISTOR LTHE LINCOLN ELECTRIC CO. OPTIONAL POLARITY SWITCH (60 Hz ONLY) W = WHITE G = GREEN A = AMBER Wiring Diagram-R3R-300 IDEALARC R3R 300, R3R 375-I CLEVELAND, OHIO U.S.A. THE LINCOLN ELECTRIC CO.J1 J3 J7J6 CONTROL L1 MACHINE/REMOTE SWITCH POWER SWITCH SW4 SW3 SW2 10K OHM POT., ARC FORCE CONTROL 10K OHM POT., OUTPUT CONTROL POCKET AMPTROL IS PROVIDED ARE NOT USED WHEN OPTIONAL CONNECTOR AND THESE THREE LEADS (COMPONENT SIDE OF BOARD) POCKET AMPTROL OPTION CONTROL TRANSFORMER MAIN TRANSFORMER T3 T2 T1 SCR AND DIODE D4 SCR3-D3 SCR2-D2 R4 R3 R2 R1 L1 DC OUTPUT FILTER D7 POCKET AMPTROL SENSING BRIDGE D6 D5 ELECTRICAL SYMBOLS PER E1537 LEGEND DIAL SELECTOR SWITCH SCR1-D1 RECTIFIER BRIDGE TRANSFORMER ( DASHED ITEMS ON WIRING DIAGRAM ARE OPTIONAL ) CAVITY NUMBERING SEQUENCE ABCDEF 40 OHM SW1 P.C. BOARD +Y = YELLOW COLORS J2 J4 WIRING DIAGRAM THE LINCOLN ELECTRIC CO. LJ5 REMOTE CONTROL RECEPTACLE G-3 G-4J5 REMOTE CONTROL OPTIONAL POCKET AMPTROL LEADS ARE NOT USED WHEN CONNECTOR AND THESE THREE LTHE LINCOLN ELECTRIC CO..4 OHM POCKET AMPTROL SENSING RESISTOR J1 J2 J6 Y = YELLOW W = WHITE G = GREEN A = AMBER +SW3 SW2 SW1 40 OHM 10K OHM POT., ARC FORCE CONTROL 10K OHM POT., OUTPUT CONTROL A B C D E F CAVITY NUMBERING SEQUENCE ICR INPUT STARTER CONTROL TRANSFORMER T2 T1 RECTIFIER BRIDGE SCR AND DIODE SCR3-D3 SCR2-D2 SCR1-D1 DIAL SELECTOR SWITCH R3 R2 R1 L1 DC OUTPUT FILTER D7 POCKET AMPTROL SENSING BRIDGE D6 D5 LEGEND Wiring Diagram - R3R-400 (Code 9537)ELECTRICAL SYMBOLS PER E1537 R4 D4 T3 MAIN TRANSFORMER POCKET AMPTROL OPTION TRANSFORMER ( DASHED ITEMS ON WIRING DIAGRAM ARE OPTIONAL ) (COMPONENT SIDE OF BOARD) SW4 POWER SWITCH MACHINE/REMOTE SWITCH L1 CONTROL P.C. BOARD 102 -COLORS SINGLE, 346V AND ABOVE (EXCEPT 380V.) 380V OR TRIPLE VOLTAGE SINGLE, BELOW 346V OR DUAL VOLTAGE 380/500 OR 460/575OPTIONAL POLARITY SWITCH (60 Hz ONLY) J7J4 J3 R3R-400, 500-I, 500 & 600-I WIRING DIAGRAM THE LINCOLN ELECTRIC CO.CLEVELAND, OHIO U.S.A. THE LINCOLN ELECTRIC CO. L G-5 103 IDEALARC R3R-400, 500-I, 500 & 600-I WIRING DIAGRAM-230/400V(60 Hz ONLY) OPTIONAL POLARITY SWITCH IS PROVIDED. OPTIONAL POCKET AMPTROL LEADS ARE NOT USED WHEN 380/500 OR 460/575W = WHITE G = GREEN A = AMBER Wiring Diagram - R3R-400 (Code 9874), R3R-500 L9376 REMOTE CONTROL RECEPTACLE J3 J7 SINGLE, BELOW 346V OR 380V OR TRIPLE (EXCEPT 380V.) SINGLE, 346V AND ABOVECONTROL L1 MACHINE/REMOTE SWITCH POWER SWITCH SW4 SW3 SW2 10K OHM POT., ARC FORCE CONTROL 10K OHM POT., OUTPUT CONTROL (COMPONENT SIDE OF BOARD) ( DASHED ITEMS ON WIRING POCKET AMPTROL OPTION CONTROL TRANSFORMER MAIN TRANSFORMER T3 T2 T1 SCR AND DIODE D4 SCR3-D3 SCR2-D2 R4 R3 R2 R1 L1 DC OUTPUT FILTER D7 POCKET AMPTROL SENSING BRIDGE D6 D5 ELECTRICAL SYMBOLS PER E1537 LEGEND DIAL SELECTOR SWITCH SCR1-D1 RECTIFIER BRIDGE TRANSFORMER ICR INPUT STARTER DIAGRAM ARE OPTIONAL ) CAVITY NUMBERING SEQUENCE A B C D E F 40 OHM SW1 P.C. BOARD +Y = YELLOW COLORS VOLTAGE DUAL VOLTAGEJ2 J4 J1 .4 OHM POCKET AMPTROL SENSING RESISTOR CONNECTOR AND THESE THREE J5 1-20-95E G-5 104 G-6Pocket Amptrol Schematic2-82 2-82 4-82 76 7577R5 B THE LINCOLN ELECTRIC CO. 219 218 TO DIODE- HEAT SINK13 CLEVELAND, OHIO U.S.A.4.75K R17 22.1K R16 47.5K R20 7.68K 133K LR9 R10 R44 R51 R62 G Y GR35 R15 4.75K R18 X5 J7 LABELS L6661 L R3R POCKET AMPTROLA C X5 C.S. 2-27-91 9-1-81 1-15-82 3-12-82M 5-21-82R G-6 105 G-7Snubber Board Schematic & LayoutM15370-3 INDUCTANCE = HENRYS ITEM REQD PART NO. STHE LINCOLN ELECTRIC CO. S19687 IDEALARC DC400 CLEVELAND, OHIO U.S.A. FILENAME: S19687_3EA SNUBBER SCHEMATIC GENERAL INFORMATION G-7IDENTIFICATION RESISTORS = OHMS CAPACITORS = MFD/VOLTS SNUBBER 106 G-8R3R-300 Control PC BoardIDENTIFICATION PART No. REQD. ITEM G-8 107 G-9R3R-400 Control PC BoardIDENTIFICATION PART No. REQD. ITEM G-9 108 G-10R3R-500 Control PC BoardIDENTIFICATION PART No. REQD. ITEM G-10
Also you can find more Lincoln Electric manuals or manuals for other Power Tools.