Instruction/ maintenance manual of the product SVM132-A Lincoln Electric
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LN-8 SEMIA UTOMA TIC WIRE FEEDER SER VICE MANUAL SVM132-A May, 2002 Safety Depends on You 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 thought- ful operation on your part.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC LN-8 SAFETY FOR ENGINE powered equipment. 1.a. Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ____________________________________________________ 1.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC LN-8 SAFETY ii ii ARC RA YS can burn. 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.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC LN-8 SAFETY FOR ELECTRICALL Y powered 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.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC LN-8 iv SAFETY iv PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instruc- tions e.
LN-8 MASTER T ABLE OF CONTENTS FOR ALL SECTIONS Page Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i-iv Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SECTION A-1 INST ALLA TION LN-8 SECTION A-1 T ABLE OF CONTENTS -INST ALLA TION SECTION- Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC ELECTRODE DIAMETER SOLID 0.030 in. through 3/32 in. (0.76 through 2.36 mm) CORED 0.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-3 INST ALLA TION LN-8 A-3 MOUNTING LOCA TION The LN-8 can be operated as a free-standing unit, or it can be mounted to an undercarriage when portability is required.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-4 INST ALLA TION LN-8 A-4 LN-8S AND LN-8SE (AND CONVERTED LN-8N AND LN-8NE) 1.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-5 INST ALLA TION LN-8 A-5 Figure No. Power Source A.2 Connection of LN-8 to an Idealarc® R3S-400, 600 or 800 (with LVC) (Discontinued) A.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-6 INST ALLA TION A-6 LN-8 ELECTRIC SHOCK CAN KILL TURN OFF INPUT POWER TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ON THIS EQUIPMENT.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-7 INST ALLA TION A-7 LN-8 ELECTRIC SHOCK CAN KILL TURN OFF INPUT POWER TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ON THIS EQUIPMENT.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-8 INST ALLA TION A-8 LN-8 ELECTRIC SHOCK CAN KILL TURN OFF INPUT POWER TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ON THIS EQUIPMENT.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-9 INST ALLA TION A-9 LN-8 ELECTRIC SHOCK CAN KILL TURN OFF INPUT POWER TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ON THIS EQUIPMENT.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-10 INST ALLA TION A-10 LN-8 ELECTRIC SHOCK CAN KILL TURN OFF INPUT POWER TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ON THIS EQUIPMENT.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-11 INST ALLA TION A-11 LN-8 ELECTRIC SHOCK CAN KILL TURN OFF INPUT POWER TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ON THIS EQUIPMENT.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-12 INST ALLA TION A-12 LN-.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-13 INST ALLA TION A-13 LN-.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-14 INST ALLA TION A-14 LN-8 ELECTRIC SHOCK CAN KILL TURN OFF INPUT POWER TO THE WELDING POWER SOURCE USING THE DISCONNECT SWITCH BEFORE WORKING ON THIS EQUIPMENT.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-15 INST ALLA TION LN-8 A-1.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-16 INST ALLA TION LN-8 A-16 2. The standard cable setup consists of an electrode cable and a control cable with a polarized plug on the wire feeder end.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-17 INST ALLA TION LN-8 A-17 9.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC A-18 INST ALLA TION LN-8 A-18 GUN AND CABLE ASSEMBLIES GENERAL The LN-8 is used with various guns.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC OPERA TION LN-8 SECTION B-1 SECTION B-1 T ABLE OF CONTENTS -OPERA TION SECTION- Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC B-2 OPERA TION B-2 CONTROLS AND THEIR FUNCTIONS CONST ANT CURRENT CONTROLS Operator controls for welding using a constant current power source are illustrated in Figure B.
B-3 OPERA TION B-3 CURRENT CONTROL . Adjusts welding current by controlling power source output. VOLTAGE CONTROL . Adjusts arc voltage by control- ling wire feed speed. TRIGGER INTERLOCK . With the switch in the OFF position, the wire feed motor runs and the welding cir- cuit is energized only when the gun trigger is pressed.
B-4 OPERA TION B-4 CIRCUIT PROTECTION FIELD CIRCUIT FUSE . This 1/2 amp slow blow fuse, located on the Relay PC board, protects the field cir- cuit. It will blow if the field shorts or if one of the field circuit components on the Relay PC board fails.
B-5 OPERA TION B-5 WIRE FEED ROLLS AND GUIDE TUBES The drive rolls and guide tube kits are ordered sepa- rately. Refer to Figure B.3 and install these parts per the following instructions: 1. Loosen the idle roll spring pressure screw. 2. Remove the drive roll screw and clamping collar from the drive shaft.
B-6 OPERA TION B-6 7. Install the large ingoing guide into the rear brass block and tighten the locking screw. 8. Install the outgoing guide tube with its plastic insert through the front brass block. Tighten the locking screw so the dog point goes into the groove on the O.
B-7 OPERA TION B-7 FIGURE B.4 – CV-CC SWITCH WELDING WITH A CONST ANT VOL T AGE POWER SOURCE 1. Current and voltage adjustments Amps Control — All Power Sources Set the welding current (or wire feed speed) with the LN-8 Amps control. Volts Control — DC-600 Power Source a.
B-8 OPERA TION B-8 WIRE REEL LOADING – 50 AND 60 lb COILS (K303 WIRE REEL ST AND) MOUNTING A 50 OR 60 lb COIL 1. To remove the wire reel from its shaft, grasp the spring loaded knob and pull out. This straightens the knob so it seats into the shaft when released.
B-9 OPERA TION B-9 WIRE REEL LOADING (K1524-1 UNIVERSAL WIRE REEL ST AND) TO MOUNT A 30 lb (14 kg) READI-REEL PACKAGE (USING THE MOLDED PLASTIC K363-P READI-REEL ADAPTER): The spindle should be located in the LOWER mount- ing hole. 1. Depress the Release Bar on the Retaining Collar and remove it from the spindle.
B-10 OPERA TION B-10 TO MOUNT 10 TO 44 lb (4.5 to 20 kg) SPOOLS (12 in./300 mm DIAMETER) OR 14 lb (6 kg) INNERSHIELD COILS: The spindle should be located in the lower mounting hole. [For 8 in. (200 mm) spools, a K468 spindle adapter must first be slipped onto the spindle.
B-11 OPERA TION B-11 FEEDING ELECTRODE TO THE LN-8N OR LN-8S 1. Turn the reel until the free end of the electrode is accessible. 2. While tightly holding the electrode, cut off the bent end and straighten the first six inches.
B-12 OPERA TION B-12 SLOW ACCELERA TION ST ARTING (CODE 7926 AND ABOVE) The LN-8 has the capability of optimum starting for dif- ferent processes. This is accomplished by designing the LN-8 to start with two different speeds of con- trolled acceleration.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SECTION C-1 ACCESSORIES SECTION C-1 LN-8 T ABLE OF CONTENTS -ACCESSORIES SECTION- Accessories .........................................................................
Product Number Name K163 UNDERCARRIAGE K178 MOUNTING PLATFORM K261 METER KIT K202 BURNBACK KIT K58 MAGNETIC SEPARATOR K119 GRAVITY FEED FLUX CONE K310 FLUX SCREEN K320 FLUX TANK K161 MECHANIZED TRAVEL.
C-3 ACCESSORIES C-3 K163 UNDERCARRIAGE (REQUIRES K303, K377, OR K378) The undercarriage includes casters, wheels, a handle, and related hardware. Casters are mounted at the front and wheels are mounted at the rear of the plat- form.
C-4 ACCESSORIES C-4 K240 CONT ACTOR KIT Output contactor with pilot relay to make the electrode ‘cold’ when not welding. Must be ordered when using the LN-8 with SA-750, SAE, TM, R3M and R3R Idealarcs. Contactor kits are rated at 600 amps maxi- mum, and cannot be paralleled with each other.
C-5 ACCESSORIES C-5 WELDING GUNS INNERSHIELD GUNS The K126 gun and cable assembly is recommended for most Innershield electrodes at up to 350 amps. The K115 gun and cable assembly is recommended for up to 450 amps. The K116 gun and cable assembly is recommended for up to 600 amps.
C-6 NOTES LN-8 C-6 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SECTION D-1 MAINTENANCE SECTION D-1 LN-8 T ABLE OF CONTENTS -MAINTENANCE SECTION- Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D-2 MAINTENANCE D-2 ROUTINE MAINTENANCE DRIVE ROLLS AND GUIDE TUBES After feeding every coil of wire, inspect the drive roll section. Clean the assembly as necessary. Do not use solvent to clean the drive roll assembly as it may wash the lubricant out of the bearings.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC SECTION E-1 THEOR Y OF OPERA TION SECTION E-1 LN-8 T ABLE OF CONTENTS -THEOR Y OF OPERA TION SECTION- Theory of Operation . . . . . . . . . . . . . . . . . . . . . . .
E-2 THEOR Y OF OPERA TION E-2 GENERAL DESCRIPTION The LN-8 is a semiautomatic wire feeder designed for Innershield (FCAW) and gas metal arc processes with the appro- priate accessories. It is also suitable for constant voltage (CV) submerged arc welding processes.
E-3 THEOR Y OF OPERA TION E-3 GUN TRIGGER AND 1CR RELA Y CONT ACT CONTROL CIRCUITS When the gun trigger switch is activat- ed (closed) the 1CR relay is energized. Three sets of isolated contacts incor- porated within the 1CR relay perform several functions.
E-4 THEOR Y OF OPERA TION E-4 V ARIABLE VOL T AGE BOARD, METER SHUNT , WIRE SPEED AND REMOTE OUTPUT CONTROLS The optional variable voltage board enables the LN-8 to be used with a con- stant current power source.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC E-5 THEOR Y OF OPERA TION E-5 SCR OPERA TION A silicon controlled rectifier (SCR) is a three terminal semi-conductor device used to control currents to a load.
E-6 NOTES LN-8 E-6 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC.
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC LN-8 SECTION F TROUBLESHOOTING AND REP AIR SECTION F T ABLE OF CONTENTS -TROUBLESHOOTING AND REP AIR SECTION- Troubleshooting and Repair . . . . . . . . . . . . . . . .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC LN-8 F-2 TROUBLESHOOTING AND REP AIR F-2 This Troubleshooting Guide is provided to help you locate and repair possible machine malfunctions.
LN-8 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC TROUBLESHOOTING & REP AIR F-3 F-3 Sometimes machine failures appear to be due to PC board failures.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC 1. Check the Ground Lead Protector (GLP). Reset if necessary. 2. Check the circuit breaker.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC 1. The 1CR relay, located on the power board, may be faulty. Check or replace. Note: The relay may operate but the indi- vidual contacts may not be func- tioning properly.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-6 TROUBLESHOOTING AND REP .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-7 TROUBLESHOOTING AND REP .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-8 TROUBLESHOOTING AND REP .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-9 TROUBLESHOOTING AND REP .
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-10 TROUBLESHOOTING AND REP AIR F-10 LN-8 ELECTRICAL SEQUENCE OF OPERA TION FIGURE F.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-11 TROUBLESHOOTING AND REP AIR F-11 FIGURE F.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC LN-8 F-12 TROUBLESHOOTING AND REP AIR F-12 TEST DESCRIPTION This test will aid the technician in determining if the Trigger Transformer is functioning properly.
F-13 TROUBLESHOOTING AND REP AIR F-13 TEST PROCEDURE 1. Remove input power to the LN-8. 2. Using the 5/16 in. nutdriver, remove the screws holding the left side cover assembly. 3. Disconnect the Molex plug from the under-side of the relay board. See Figure F.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-14 TROUBLESHOOTING AND REP AIR F-14 LN-8 TEST DESCRIPTION This test will aid the technician in determining if the correct voltages are present in the LN-8.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-15 TROUBLESHOOTING AND REP AIR F-15 TEST DESCRIPTION 1. Remove input power to the LN-8.
INTERNAL VOL T AGE TEST (continued) TABLE F.1 – VOLTAGE TEST POINTS Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-16 TROUBLESHOOTING AND REP AIR F-16 LN-8 ACCEPTABLE CHECKPOINT TEST VOLTAGE LOCATIONS DESCRIPTION LEAD NO.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-17 TROUBLESHOOTING AND REP.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-18 TROUBLESHOOTING AND REP AIR F-18 TEST PROCEDURE 1. Remove input power to the LN-8.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-19 TROUBLESHOOTING AND REP AIR F-19 7. Measure the resistance across the contacts.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-20 TROUBLESHOOTING AND REP AIR F-20 LN-8 TEST DESCRIPTION This test will help determine if the drive motor is functioning correctly.
F-21 TROUBLESHOOTING AND REP AIR F-21 TEST PROCEDURE 1. Remove input power to LN-8. 2. Remove the electrode wire or dis- engage drive rolls. 3. Using the 5/16 in. nutdriver, remove the screws from the left side cover assembly. 4. Lift the left side cover.
F-22 TROUBLESHOOTING AND REP AIR F-22 6. Locate leads #626 and #627 at the relay board. 7. If a variable voltage board is installed in the LN-8, make cer- tain the mode switch is in the CV position. 8. Apply 115VAC to the input recep- tacle at pins C and D.
F-23 TROUBLESHOOTING AND REP AIR F-23 To further check the drive motor: 12. Remove input power (115VAC) from the LN-8. 13. Locate and remove leads #539 and #541 from the control board, see Figure F.5 . 14. Locate and remove leads #626 and #627 from the relay board.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-24 TROUBLESHOOTING AND REP AIR F-24 LN-8 MA TERIALS NEEDED 5/16 in. nutdriver 1/2 in.
F-25 TROUBLESHOOTING AND REP AIR F-25 REP AIR PROCEDURE 1. Remove input power to the LN-8 2. Using the 5/16 in. nutdriver, remove the screws from the left side cover assembly. 3. Using a 5/64 in. Allen wrench or slothead screwdriver, loosen the setscrew on the potentiometer knob and remove the knob from the potentiometer.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-26 TROUBLESHOOTING AND REP AIR F-26 LN-8 MA TERIALS NEEDED 5/16 in. nutdriver 9/16 in.
F-27 TROUBLESHOOTING AND REP AIR F-27 REP AIR PROCEDURE 1. Using the 5/16 in. nutdriver, remove the screws from the left side cover assembly. 2. Tag and remove the two connec- tors from the back of the circuit breaker. Refer to Figure F.8. 3. Using the 9/16 in.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-28 TROUBLESHOOTING AND REP AIR F-28 LN-8 MA TERIALS NEEDED 5/16 in. nutdriver 3/32 in.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-29 TROUBLESHOOTING AND REP AIR F-29 REP AIR PROCEDURE 1. Using the 5/16 in. nutdriver, remove the screws from the left side cover assembly.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-30 TROUBLESHOOTING AND REP AIR F-30 LN-8 MA TERIALS NEEDED 5/16 in.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-31 TROUBLESHOOTING AND REP AIR F-31 REP AIR PROCEDURE 1. Using the 5/16 in. nutdriver remove the screws from the left side cover assembly.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-32 TROUBLESHOOTING AND REP AIR F-32 LN-8 MA TERIALS NEEDED 5/16 in.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-33 TROUBLESHOOTING AND REP AIR F-33 REP AIR PROCEDURE 1. Observe the static precautions detailed in the PC Board Troubleshooting Procedures at the beginning of this section.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-34 TROUBLESHOOTING AND REP AIR F-34 RELA Y BOARD REMOV AL AND REPLACEMENT 1. If the Relay PC board is being replaced, remove the 1CR Relay from the PC board.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-35 TROUBLESHOOTING AND REP AIR F-35 LN-8 MA TERIALS NEEDED Offset flat blade screwdriver Flat blade screwdriver Phillips screwdriver 7/16 in.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-36 TROUBLESHOOTING AND REP AIR F-36 REP AIR PROCEDURE 1. Using the 5/16 in. nutdriver, remove the screws from the left side cover assembly.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-37 TROUBLESHOOTING AND REP AIR F-37 7. Disconnect two leads #567 (blue), and lead #568 (blue) from the shunt using the 11/32 in.
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC F-38 TROUBLESHOOTING AND REP AIR F-38 10.
F-39 TROUBLESHOOTING AND REP AIR F-39 14. Install the gearbox assembly onto the insulation sheet and mounting plate using four hex head screws, lockwashers and flat washers. Ensure that the edge of the mount- ing plate that has the single mounting hole is under the drive motor.
F-40 TROUBLESHOOTING AND REP AIR F-40 If a failed test indicates that any mechanical part that could affect the machine’s electrical characteristics must be replaced or if any electrical components are repaired or replaced, the machine must be retested and meet the following standards.
G-1 ELECTRICAL DIAGRAMS G-1 Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC T ABLE OF CONTENTS -ELECTRICAL DIAGRAMS SECTION- Electrical Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G-2 ELECTRICAL DIAGRAMS LN-8 W iring Diagram 2 502 4 504 531 32A * 1 6 2 3 4 5 2 502 4 504 531 32A 528 525 WIRE FEED MOTOR 539 U 541 B R 626 627 W BURNBACK P.C. BOARD JUMPER CONNECTOR IS REMOVED AND CONNECTOR "B" PLUGGED INTO OPTIONAL BURNBACK P.
G-3 ELECTRICAL DIAGRAMS LN-8 CONNECTION SCHEMA TIC 14669 Ch’ge. Sht. No. 3-31-83N 11-14-86G 2-13-87G t UNLESS OTHERWISE SPECIFIED TOLERANCE ON HOLE SIZES PER E2056 ON 2 PLACE DECIMALS IS .02 WITH PUBLISHED STANDARDS. ON 3 PLACE DECIMALS IS .002 ON ALL ANGLES IS .
G-4 ELECTRICAL DIAGRAMS LN-8 OPERA TING SCHEMA TIC 5 4 2 3 6 1 32A 531 4 504 502 2 2 4 1CR 504 N.A. 32 32A 5 AMP CIRCUIT BREAKER TP201 C204 77 76 75 R20 T1 526 525A C205 525 R205 523 524 S1 R204 S2 53.
G-5 ELECTRICAL DIAGRAMS LN-8 CONTROL BOARD (L5767) SCHEMA TIC G-5 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC NOTE: Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting.
G-6 ELECTRICAL DIAGRAMS LN-8 V ARIABLE VOL T AGE BOARD (L5039) SCHEMA TIC 12-3-92E G-6 Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC Return to Master TOC Retu.
G-7 ELECTRICAL DIAGRAMS LN-8 CONTROL BOARD (L5767) LA YOUT LN-8 CONTROL L5767-1 D6 D7 1 2345678 N O BAL CAL FS ITEM REQ’D. PART No. IDENTIFICATION C1 C2 C3 C4 C5 C6,C10,C11,C12,C13 C7,C8 C9 1 1 1 1 1 5 2 1 S13490-42 S13490-67 S13490-104 S13490-25 T11577-26 S16668-5 S13490-102 T11577-52 1.
G-8 ELECTRICAL DIAGRAMS LN-8 V ARIABLE VOL T AGE BOARD (L5039) LA YOUT IDENTIFICATION PART NO. REQ’D ITEM INDUCTANCE = HENRY CAPACITORS = MFD VOLTS L5039-1 LN-8 VARIABLE VOLTAGE VV CV 8-31-2001E L50.
SVM ERROR REPORTING FORM We need to know if there are errors in our manuals. We also value any suggestions as to additional tests or procedures that would make this SVM a better tool for you.
An important point after buying a device Lincoln Electric SVM132-A (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lincoln Electric SVM132-A yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lincoln Electric SVM132-A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lincoln Electric SVM132-A you will learn all the available features of the product, as well as information on its operation. The information that you get Lincoln Electric SVM132-A will certainly help you make a decision on the purchase.
If you already are a holder of Lincoln Electric SVM132-A, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lincoln Electric SVM132-A.
However, one of the most important roles played by the user manual is to help in solving problems with Lincoln Electric SVM132-A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lincoln Electric SVM132-A along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
