Lincoln Electric NA-5SF manuals
Power Tools > Welding System
When we buy new device such as Lincoln Electric NA-5SF we often through away most of the documentation but the warranty.
Very often issues with Lincoln Electric NA-5SF 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 Welding System Lincoln Electric NA-5SF is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Welding System on our side using links below.
Lincoln Electric NA-5SF Service Manual
152 pages 2.28 Mb
NA-5 AUTOMATIC WELDING SYSTEMSSERVICE MANUAL SVM131-A SAFETY FOR ENGINE powered equipment. 2 WARNING100 {101 WIRE FEED DRIVE MOTORTESTMotor Applied Voltage MOTOR APPLIED VOLT AGE TEST 102 WIRE FEED DRIVE MOTORTEST 103 EXTERNAL RESISTANCE TEST (LEADS #21 AND #67)104 EXTERNAL RESISTANCE TEST (LEADS #21 AND #67) TABLE F.2 EXTERNAL VOLTAGE SENSING LEADS TEST POINTS 105 OUT OF VOLTAGE RANGE SHUT DOWN TEST106 OUT OF VOL TAGE RANGE SHUT DOWN TEST 108 TACH BOARD FEEDBACK TEST109 TACH BO ARD FEEDBACK TEST 111 VOLTMETER A CCURACY TEST 112 CR3 RELAY113 WIRE SPEED ACCURACY TEST117 METER CIRCUIT ACCURACY TEST124 PC BOARD(S) REMOVAL AND REPLACEMENTPC Board Troubleshooting Procedures REPLACEMENT PROCEDURE 125 PC BOARD(S) REMOV AL AND REPLACEMENT 130 TACH PC BOARD REMOVAL AND REPLACEMENT131 TACH PC BO ARD REMOVAL AND REPLACEMENT 134 WIRE DRIVE MOTOR REMOVAL AND REPLACEMENTMOTOR REMOVAL Tach Board Removal Procedure 135 WIRE DRIVE MOTORTACH HOUSING COVER PLATE ADAPTER 143 }LOGIC PC BOARD (L6242-1) SCHEMATICELECTRICAL SYMBOLS PER E1537 CLEVELAND, OHIO U.S.A. }G-3 144 G-4LOGIC PC BOARD (L6242-2 & above) SCHEMATIC1-12-96D (Optional procedure receptacle) Inch up with contactor delay contactor delay Start/stop with switches Start/stop with weld current Yes LABELS LOGIC POWER SUPPLY DISTRIBUTION AND BYPASSING GMAB NONE-4 -3 N.F. N.F. -3 515 566 Inch up with no contactor delay Methods of Burnback G-1 610 628 GENERAL INFORMATION CLEVELAND, OHIO U.S.A. THE LINCOLN ELECTRIC CO. Methods of TravelNo Wire feed stop with Start with start switch Stop after burn-back time (Optional procedure module installed in crater Start with start switch module installed in crater Stop after crater time receptacle) Start with weld current Stop with stop switch Optional Crater Module Installed? G-4 G-5 POWER PC BOARD (L6252-1) SCHEMATICSCHEMATIC FOR COMPONENT VALUES AND CIRCUIT CONNECTIONS. THE LINCOLN ELECTRIC CO. NA-5 SCHEMATIC A.N.S.I. ELECTRICAL SYMBOLS PER E1537ARMATURE SUPPLY FEED DIRECTION CIRCUIT L 1 2 3 4 5 6 7 ABCDEFGHJKLM L 145 AFOR POWER P.C. BOARDS L6252-2 OR HIGHER USE L8956 G-5 146 G-6POWER PC BOARD (L6252-2 & above) SCHEMATICPOWER P.C. BOARD SCHEMATIC CLEVELAND, OHIO U.S.A. THE LINCOLN ELECTRIC CO.R12 47.5K SCALE C11 33.2K C9 C12 R8 47.5K R7 10K C20 1.50K FIELD SUPPLYT1B T2A T2BR14 4.75K R15 3.32K R17 133K D11 LED1B LED1A D7 R16 133K 4.75K 6.81K D310K 2W R3 TYPE NO. F1 LED1E 12W F2 EQUIP. GENERAL INFORMATION MLABELS D2 LRECEPTACLE WHICH IS DRAWN BELOW.THE NA-5R OPTIONAL BURNBACK RELAYMOTOR FIELD 531B AND CR2 ARE REMOVED ON THE NA-5R. FOR THE NA-5R ONLY:BURNBACK KIT IS CONNECTED TO 631 AND 532. SHOWN WITH JUMPER PLUG INSTALLEDCR3 IS SHOWN IN THE OPTIONAL BURNBACK KIT THE TRAVEL RECEPTACLE,THE TRAVEL SWITCH, 115VAC INPUT NA-5,NA-5R LSUP'S'D'G. SUBJECT 8956R5 R10 13.7K R20 R9 332 R21 R6 R4 LED1F D6 D10 ARMATURE SUPPLY INTERFACE OPTION CIRCUIT ANALOG FIELD DIRECTION G-6 147 G-7VOLTAGE PC BOARD SCHEMATICReturn to Section TOC Return to Section TOC Return to Section TOC Retur n to Section TOCSHUTDOW CIRCUIT -CLEVELAND, OHIO U.S.A. THE LINCOLN ELECTRIC CO. NA-5 SCHEMATIC A.N.S.I. ELECTRICAL SYMBOLS PER E1537 L 1 2 3 4 5 6 7 BCDEFGHJKLM L CACONTROL AMP VOLTMETER VOLTMETER POWER SUPPLY +ACTUAL VOLTAGE METER FILTER SET VOLTAGE BUFFER ACTUAL VOLTAGE BUFFER HOLD - LOW CIRCUIT ARC CONTROL ENABLE POWER SOURCE CONTROL INTERFACE AUTO-STOP CIRCUIT G-7 G-8 CONTROL CIRCUIT SCHEMATICELECTRICAL SYMBOLS PER E1537.ACCELERATION CIRCUIT FEED ENABLE CIRCUIT SET SPEED BUFFER TACH SIGNAL CONVERTER CLEVELAND, OHIO U.S.A. THE LINCOLN ELECTRIC CO. L6682-2 1 2 3 4 5 6 7 BCDEFGHJKLM 148 BAACTUAL SPEED BUFFER CONTROL AMP +10.00 V REFERENCE SUPPLY ARMATURE FIRING CIRCUIT SPEEDMETER SPEEDMETER POWER SUPPLY G-8 149 G-9PROCEDURE PC BOARD SCHEMATIC7-12-96N 7-10-92N 3-6-92B TIME BASE FOR LABELS GENERAL INFORMATION THE LINCOLN ELECTRIC CO. LNO. SHT. SCHEMATIC10-29-91VOLTS PRESET MODE START AND BYPASSING POWER SUPPLY DISTRIBUTION OPTION BOARD START MODULE VOLTS SPEED LR17 R7 R9 R4 R5 STRIKE MODE SETTINGS NOTES : WELD MODE SETTINGS SPEED SELECTOR OPTIONAL OPTIONAL WELD TIMER MODULE CRATER MODULE OPTIONAL BURNBACK TIMER OPTION BOARD DIGITAL TIMERS CRATER 8754 NA-5 PROCEDURE CLEVELAND, OHIO U.S.A.CHK. EQUIP. SUBJECT SUP'S'D'G. DATE FM G-9 150 G-10OPTION & TIMER PC BOARD SCHEMATICSELECTRICAL SYMBOLS PER E1537 OPTION BOARDCLEVELAND, OHIO U.S.A. THE LINCOLN ELECTRIC CO. 6 1 2 3 4 BCDEFGHJKLM E G-10 151 G-11METER PC BOARD SCHEMATIC & LAYOUT510C L6685-1 METER THE LINCOLN ELECTRIC CO. S SCLEVELAND, OHIO U.S.A. METER BOARD SCHEMATIC FILE: S21143_1CA LN-9, LN-9F, NA-5 G-11IDENTIFICATION PART NO. REQ'D ITEM G-12 MISCELLANEOUS PC BOARDSReturn to Section TOC Return to Section TOC Retur n to Section TOC Return to Section TOCGND 621 667 87 531 626C5 C4 C3 C2 C1 B7 B1 B2 B3 B4 B5 Y1 S1 C8 FRAME G1566-3 PROCEDURE Q18 Q13 Q17 Q9 Q8 Q1 S1 S2 LED 7H LED 7D LED 7A C12 + C5 C1 C15 C14 AMP21 BLOWSLOW BLOW QU1 Q3 Q9 PT2 PT3 B2 B5 B4 B3 B1 LED1E F2 J3 D9 D4 D5 D13 D15 D14 D11 D8 D10 C21 C16 C8 C6 X2 X1 R15 R14 R4 R7 R8 R22 R21 R1 L6252-2IDENTIFICATION PART NO. REQ'D ITEM CAPACITORS = MFD/VOLTS RESISTORES = OHMS NA-5 POWERR17 R18 R20 R19 R2 R9 R11 R12 R6 R3 R10 R16 SCR3 SCR4 D1 C5 C4 C2 C13 C18 LED1D LED1C LED1B TP2 TP3 PT1 SLOW AMP21 POWER FIELD G-12IDENTIFICATION PART NO. REQ'D ITEM + C9 LED 7B LED 7C LED 7E LED 7J C13 B1 B2 Q10 X9 BURNBACK WELD CRATER START ITEM REQ'D PART NO. DESCRIPTION CAPACITORS = MFD/VOLTS RF BYPASS M14133-1 152 POWER BOARD LOGIC BOARDPROCEDURE BOARD BYPASS BOARD
Also you can find more Lincoln Electric manuals or manuals for other Power Tools.