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Manual Lincoln Electric BULLDOG SVM208-A

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  • Lincoln Electric BULLDOG SVM208-A - page 1

    SVM208-A January , 201 1 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 your part. DO NOT INST ALL, OPERA TE OR REP AIR THIS EQUIPMENT WITHOUT READ- ING THIS MANUAL AND THE SAFETY PRE ...

  • Lincoln Electric BULLDOG SVM208-A - page 2

    BULLDOG® 140 SAFETY i 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. _______________________ ...

  • Lincoln Electric BULLDOG SVM208-A - page 3

    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. Headshield and filter lens should conform to ANSI Z87. I standards. 4.b. Use suitable clothing made from durable flame-resistant material to protect your skin and that of ...

  • Lincoln Electric BULLDOG SVM208-A - page 4

    BULLDOG® 140 SAFETY iii iii 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.S. National Electrical Code, all local codes and the manufacturer ’s recommendations. 8.c. Ground the equipment in accordance with ...

  • Lincoln Electric BULLDOG SVM208-A - page 5

    SAFETY iv iv BULLDOG® 140 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. ...

  • Lincoln Electric BULLDOG SVM208-A - page 6

    SAFETY Electromagnetic Compatibility (EMC) Confor mance P roducts displaying the CE mark are in conformity with European Community Council Directive of 1 5 Dec 2004 on the appro ximation of the laws of the Member Stat es relating to electromagnetic compatibilit y , 2004/1 08/EC . It was manuf actured in conformit y with a national standar d that im ...

  • Lincoln Electric BULLDOG SVM208-A - page 7

    SAFETY Electromagnetic Compatibility (EMC) The size of the surrounding area to be considered will depend on the structure of the building and other activities that are taking place. The surr ounding ar ea ma y ext end bey ond the boundar ies of the premises. Methods of Reducing Emissions Mains Supply W elding equipment should be connected to the ma ...

  • Lincoln Electric BULLDOG SVM208-A - page 8

    - MASTER T ABLE OF CONTENTS FOR ALL SECTIONS - I I BULLDOG® 140 Page Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .i-vi Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Lincoln Electric BULLDOG SVM208-A - page 9

    T ABLE OF CONTENTS - INST ALLA TION SECTION A-1 A-1 BULLDOG® 140 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1 T echnical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Lincoln Electric BULLDOG SVM208-A - page 10

    INST ALLA TION A-2 A-2 BULLDOG® 140 TECHNICAL SPECIFICA TIONS - Bulldog® 140 K2708-1 Manufacturer Description Speed Displacement Ignition Capacities Robin / Subaru 1 cyl., 3700 RPM 17.51 cu. in. Manual, Fuel: 6.86 gal. (24.9 l) EX 30 4 cycle ± 50 RPM (287 cc) Recoil start; Code air-cooled at no load Manual choke Oil: 1.1 qts.(1.0 l) (1 1518) OHC ...

  • Lincoln Electric BULLDOG SVM208-A - page 11

    INST ALLA TION A-3 A-3 BULLDOG® 140 SAFETY PRECAUTIONS Read this entire installation section before you start installation. Do not attempt to use this equipment until you have thoroughly read all the operation and mainte- nance manuals supplied with your machine. They include important safety precautions; detailed engine starting, operating, and m ...

  • Lincoln Electric BULLDOG SVM208-A - page 12

    INST ALLA TION A-4 A-4 BULLDOG® 140 Robin / Subaru 10 HP Carb. Certified EX 30 .31 Gallons/Hour (1.16 Liters/Hour) .53 Gallons/Hour (2.02 Liters/Hour) .70 Gallons/Hour (2.65 Liters/Hour) No Load 3750 RPM ±100 R.P .M. AC CC Weld Output 80 Amps @ 25 V olts Auxiliary Power 4000 W atts (120/240 V olts) Bulldog® 140 T ypical Fuel Consumption SP ARK A ...

  • Lincoln Electric BULLDOG SVM208-A - page 13

    INST ALLA TION A-5 A-5 BULLDOG® 140 ELECTRICAL OUTPUT CONNEC- TIONS See Figure A.1 for the location of the current control dial, weld output terminals, ground stud, circuit break- ers, 240 and 120 volt receptacles. WELDING CABLE CONNECTIONS Cable Size and Length Be sure to use welding cables that are large enough. The correct size and length becom ...

  • Lincoln Electric BULLDOG SVM208-A - page 14

    INST ALLA TION A-6 A-6 BULLDOG® 140 Cable Installation Install the welding cables to your Bulldog® 140 as fol- lows. See Figure A.1 for the location of parts. 1. The gasoline engine must be OFF to install weld- ing cables. 2. Remove the 1/2 - 13 flanged nuts from the output terminals. 3. Connect the electrode holder and work cables to the weld ou ...

  • Lincoln Electric BULLDOG SVM208-A - page 15

    INST ALLA TION A-7 A-7 BULLDOG® 140 PREMISES WIRING The Bulldog® 140 is not recommended for premises wiring. The Bulldog® 140 does not have a combined 120/240 volt receptacle and cannot be connected to a premises as described in other Lincoln literature. Remember that the Bulldog® 140 is intended only for backup, intermittent use power . Certai ...

  • Lincoln Electric BULLDOG SVM208-A - page 16

    Certain Electrical devices cannot be powered by the Bulldog® 140. See T able A.2. T ABLE A.2 ELECTRICAL DEVICE USE WITH THE Bulldog® 140. T ype Common Electrical Devices Possible Concerns Resistive Heaters, toasters, incandescent NONE light bulbs, electric range, hot pan, skillet, coffee maker . Capacitive TV sets, radios, microwaves, V oltage sp ...

  • Lincoln Electric BULLDOG SVM208-A - page 17

    T ABLE OF CONTENTS - OPERA TION SECTION B-1 B-1 BULLDOG® 140 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Lincoln Electric BULLDOG SVM208-A - page 18

    OPERA TION B-2 B-2 BULLDOG® 140 SAFETY INSTRUCTIONS Read and understand this entire section before oper- ating your Bulldog® 140. Do not attempt to use this equipment until you have thoroughly read all the operation and mainte- nance manuals supplied with your machine. They include important safety precautions; detailed engine starting, operating ...

  • Lincoln Electric BULLDOG SVM208-A - page 19

    OPERA TION B-3 B-3 BULLDOG® 140 LIMIT A TIONS • The Bulldog® 140 is not recommended for any processes besides those that are normally per- formed using stick welding (SMA W) procedures. • The Bulldog® 140 is not recommended for pipe thawing. • During welding, generator power is limited to 100 watts, and output voltages can drop from 120 to ...

  • Lincoln Electric BULLDOG SVM208-A - page 20

    OPERA TION B-4 B-4 BULLDOG® 140 GASOLINE ENGINE CONTROLS Refer to your engine manual for the location of the fol- lowing features: 1. FUEL SHUTOFF V AL VE: Stops the flow of gaso- line from the fuel tank to the carburetor . Should be closed whenever you are finished using the Bulldog® 140. Must be opened before you start the engine. 2. FUEL T ANK ...

  • Lincoln Electric BULLDOG SVM208-A - page 21

    OPERA TION B-5 B-5 BULLDOG® 140 4. Pull the cord rapidly . 5. If the engine does not start, open the choke slight- ly and pull the starter cord rapidly again. When the engine starts, gradually open the choke to the “RUN” position. T o open the choke fully requires an engine warm-up period of several sec- onds to several minutes, depending on t ...

  • Lincoln Electric BULLDOG SVM208-A - page 22

    OPERA TION B-6 B-6 BULLDOG® 140 GENERA TOR OPERA TION Be sure that any electrical equipment plugged into the generator’s AC power receptacles can with- stand a ±10% voltage and a ±4% frequency varia- tion. Some electronic devices cannot be powered by the Bulldog® 140. Refer to T able A.2, ELECTRI- CAL DEVICE USE WITH THE Bulldog® 140 , in th ...

  • Lincoln Electric BULLDOG SVM208-A - page 23

    OPERA TION B-7 B-7 BULLDOG® 140 T ABLE B.1 GENERA TOR POWER APPLICA TIONS Suggested Power Applications Running W atts *Start-up W atts ( C o nt in uo us ) ( Su rg e) *Air Compressor - 1 HP 2,000 4,000 - 8,000 *Air Compressor - 3/4 HP 1,250 3,100 - 5,000 *Airless Sprayer - 1/3 HP 600 1,500 - 2,400 Chain Saw 1,200 Circular Saw 1,200 Coffee Maker 1,0 ...

  • Lincoln Electric BULLDOG SVM208-A - page 24

    OPERA TION B-8 B-8 BULLDOG® 140 WELDING OPERA TION GENERAL INFORMA TION ELECTRIC SHOCK can kill. • Do not touch electrically live parts or electrodes with your skin or wet cloth- ing. • Insulate yourself from the work and ground. • Always wear dry insulating gloves. ------------------------------------------------------------------------ The ...

  • Lincoln Electric BULLDOG SVM208-A - page 25

    OPERA TION B-9 B-9 BULLDOG® 140 Stick welding is probably the most familiar welding process known. A coated ELECTRODE, the weld rod, is clamped into an ELECTRODE HOLDER, an insulat- ed clamping device, which in turn connects to the ELECTRODE CABLE, a heavy wire. The WORK, the metal piece to be welded, is connected to the WORK CABLE, a heavy wi ...

  • Lincoln Electric BULLDOG SVM208-A - page 26

    OPERA TION B-10 B-10 BULLDOG® 140 No one can learn to weld simply by reading about it. Skill comes only with practice. The following pages will help the inexperienced welder understand welding and develop his skill. For more detailed information, order a copy of the book “New Lessons in Arc Welding.” (See Book Division section at rear of manua ...

  • Lincoln Electric BULLDOG SVM208-A - page 27

    OPERA TION B-11 B-11 BULLDOG® 140 The function of the covered electrode is much more than simply to carry current to the arc. The electrode is composed of a core metal wire around which has been extruded and baked a chemical covering. The core wire melts into the arc and tiny droplets of molten metal shoot across the arc into the molten pool. The ...

  • Lincoln Electric BULLDOG SVM208-A - page 28

    OPERA TION B-12 B-12 BULLDOG® 140 PRACTICE The best way of getting practice in the four skills that enable you to maintain: 1. Correct Welding Position. 2. Correct Way to Strike An Arc. 3. Correct Arc Length. 4. Correct Welding Speed. is to spend a little more time on the following exercise. Use the following: Mild Steel Plate: 3/16” (4.8mm), or ...

  • Lincoln Electric BULLDOG SVM208-A - page 29

    OPERA TION B-13 B-13 BULLDOG® 140 Now weld the two plates together . Weld from left to right (if right-handed). Point the electrode down in he gap between the two plates, keeping the electrodes slightly tilted in the direction of travel. W atch the molten metal to be sure it distributes itself evenly on both edges and in between the plates. Penetr ...

  • Lincoln Electric BULLDOG SVM208-A - page 30

    OPERA TION B-14 B-14 BULLDOG® 140 V ertical-Up Welding The problem, when welding vertical-up, is to put the molten metal where it is wanted and make it stay there. If too much molten metal is deposited, gravity will pull it downwards and make it “drip”. Therefore, a certain technique has to be followed: 1. Use 1/8” (3.2mm) 90-1 15 amps or 3/ ...

  • Lincoln Electric BULLDOG SVM208-A - page 31

    OPERA TION B-15 B-15 BULLDOG® 140 Overhead Welding V arious techniques are used for overhead welding. However , in the interest of simplicity for the inexperi- enced welder , the following technique will probably take care of his needs for overhead welding: 1. Use 1/8” (3.2mm) 90-105 A or 3/32” (2.5mm) 70 A A WS 601 1 electrode on AC. 2. Put t ...

  • Lincoln Electric BULLDOG SVM208-A - page 32

    OPERA TION B-16 B-16 BULLDOG® 140 4. The bead should be put on with a weaving motion, and it should be 1/2-3/4” (12.7-19.0mm) wide. Do not let the arc blow over the edge, as that will dull the edge. (See drawing below .) 5. Use the back-stepping method. Begin to weld 3” (76mm) from the heel of the share and weld to the heel. The second weld wi ...

  • Lincoln Electric BULLDOG SVM208-A - page 33

    OPERA TION B-17 B-17 BULLDOG® 140 High-Speed Group (A WS E6013) This group includes electrodes which have a moder- ately forceful arc and deposit rates between those of the out-of-position and high-deposit electrodes. They are primarily general purpose production elec- trodes especially for downhill fillets and laps or short and irregular welds th ...

  • Lincoln Electric BULLDOG SVM208-A - page 34

    NOTES B-18 B-18 BULLDOG® 140 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 ...

  • Lincoln Electric BULLDOG SVM208-A - page 35

    T ABLE OF CONTENTS - ACCESSORIES SECTION C-1 C-1 BULLDOG® 140 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1 Options/Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Lincoln Electric BULLDOG SVM208-A - page 36

    ACCESSORIES C-2 C-2 BULLDOG® 140 OPTIONS/ACCESSORIES LINCOLN ELECTRIC ACCESSORIES The following options/accessories are available for your Bulldog® 140 from your local Lincoln Distributor . Accessory Kit (K875) – Includes the following: • 20 Ft.(6.1m) #6 welding cable with lug. • 15 Ft.(4.6) #6 work cable with lugs. • 200 amp electrode ho ...

  • Lincoln Electric BULLDOG SVM208-A - page 37

    T ABLE OF CONTENTS - MAINTENANCE SECTION D-1 D-1 BULLDOG® 140 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-1 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Lincoln Electric BULLDOG SVM208-A - page 38

    MAINTENANCE D-2 D-2 BULLDOG® 140 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 ...

  • Lincoln Electric BULLDOG SVM208-A - page 39

    MAINTENANCE D-3 D-3 BULLDOG® 140 SAFETY PRECAUTIONS • Have qualified personnel do all maintenance and troubleshooting work. • T urn the engine off before working inside the machine. • Remove guards only when necessary to per- form maintenance and replace them when the maintenance requiring their removal is com- plete. • If guards are missi ...

  • Lincoln Electric BULLDOG SVM208-A - page 40

    MAINTENANCE D-4 D-4 BULLDOG® 140 FUEL: At the end of each day’s use, refill the fuel tank to minimize moisture condensa- tion and dirt contamination in the fuel line. ENGINE ADJUSTMENTS OVERSPEED IS HAZARDOUS - The maximum allowable high idle speed for this machine is 3750 RPM, no load. DO NOT tamper with the governor components or setting or ma ...

  • Lincoln Electric BULLDOG SVM208-A - page 41

    MAINTENANCE D-5 D-5 BULLDOG® 140 ROBIN / SUBARU P ART # Champion RL 86C (GAP .025” [.65mm]) 279-32612-08 P ART SP ARK PLUG (RESISTOR) AIR FIL TER ELEMENT Refer to T able D.1 for engine maintenance parts. The part numbers are accurate at the time of printing. (V erify the current part number by referring to the engine owner ’s manual. CLEAN OR ...

  • Lincoln Electric BULLDOG SVM208-A - page 42

    MAINTENANCE D-6 D-6 BULLDOG® 140 GENERA TOR/WELDER MAINTENANCE STORAGE: Store the Bulldog® 140 in clean, dry , protected areas. CLEANING: Blow out the generator and controls periodically with low pressure air . Do this at least once a week in particularly dirty areas. BRU SH RE MOV AL A ND R EPLA CEM ENT : See Figure D.6. It’s normal for the br ...

  • Lincoln Electric BULLDOG SVM208-A - page 43

    MAINTENANCE D-7 D-7 BULLDOG® 140 2 3 4 8 1 5 9 6 7 10 11 12 13 FIGURE D.7. - MAJOR COMPONENT LOCA TIONS 1. CRADLE ASSEMBL Y 2. ROTOR, BLOWER, AND BEARING ASSEMBL Y 3. ST A TOR ASSEMBL Y 4. BRUSH, BRUSH HOLDER ASSEMBL Y AND BEARING BRACKET END COVER 5. REAR CONTROL P ANEL 6. REAR P ANEL ASSEMBL Y 7. FUEL T ANK ASSEMBL Y 8. CONTROL P ANEL ASSEMBL Y ...

  • Lincoln Electric BULLDOG SVM208-A - page 44

    NOTES D-8 D-8 BULLDOG® 140 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 ...

  • Lincoln Electric BULLDOG SVM208-A - page 45

    T ABLE OF CONTENTS-THEOR Y OF OPERA TION SECTION E-1 E-1 BULLDOG® 140 Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E-1 Engine, Excitation, Rotor And Stator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Lincoln Electric BULLDOG SVM208-A - page 46

    THEOR Y OF OPERA TION E-2 E-2 BULLDOG® 140 ENGINE, EXCIT A TION, ROTOR AND ST A TOR A small voltage developed by the engine magneto is fed through a diode to the rotating field coil in the rotor via a brush and slip ring configuration. This excitation (“flashing”) voltage mag ne tizes the rotor lamination. The rotor is mechanically coupled to ...

  • Lincoln Electric BULLDOG SVM208-A - page 47

    THEOR Y OF OPERA TION E-3 E-3 BULLDOG® 140 ROTOR FIELD FEEDBACK AND AUXILIAR Y POWER The AC voltage developed in the field winding is fed to the full wave bridge. The DC output of the bridge is fil- tered by the field capacitor and controlled by the output rheostat. This filtered and controlled feedback voltage is fed to the rotor winding via the ...

  • Lincoln Electric BULLDOG SVM208-A - page 48

    THEOR Y OF OPERA TION E-4 E-4 BULLDOG® 140 WELD WINDING AND REACTOR The AC voltage developed in the stator weld winding is delivered, through the reactor , to the machine output terminals. The BULLDOG 140 provides the user up to 125 amps of constant current AC welding for stick elec- trodes. The reactor stores energy , and this energy is released ...

  • Lincoln Electric BULLDOG SVM208-A - page 49

    T ABLE OF CONTENTS - TROUBLESHOOTING AND REP AIR F-1 F-1 BULLDOG® 140 T roubleshooting and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .F-1 How to Use T roubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Lincoln Electric BULLDOG SVM208-A - page 50

    TROUBLESHOOTING AND REP AIR F-2 F-2 BULLDOG® 140 This T roubleshooting Guide is provided to help you locate and repair possible machine malfunctions. Simply follow the three-step procedure listed below . Step 1. LOCA TE PROBLEM (SYMPTOM). Look under the column labeled “PROBLEM (SYMPTOMS)”. This column describes pos- sible symptoms that the m ...

  • Lincoln Electric BULLDOG SVM208-A - page 51

    TROUBLESHOOTING AND REP AIR F-3 F-3 BULLDOG® 140 Sometimes machine failures appear to be due to PC board failures. These problems can sometimes be traced to poor electrical connections. T o avoid prob- lems when troubleshooting and replacing PC boards, please use the following procedure: 1. Determine to the best of your technical ability that the ...

  • Lincoln Electric BULLDOG SVM208-A - page 52

    OUTPUT PROBLEMS Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact the Lincoln Electric Service Department for technical troubles ...

  • Lincoln Electric BULLDOG SVM208-A - page 53

    OUTPUT PROBLEMS Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact the Lincoln Electric Service Department for technical troubles ...

  • Lincoln Electric BULLDOG SVM208-A - page 54

    OUTPUT PROBLEMS Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact the Lincoln Electric Service Department for technical troubles ...

  • Lincoln Electric BULLDOG SVM208-A - page 55

    OUTPUT PROBLEMS Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact the Lincoln Electric Service Department for technical troubles ...

  • Lincoln Electric BULLDOG SVM208-A - page 56

    OUTPUT PROBLEMS Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact the Lincoln Electric Service Department for technical troubles ...

  • Lincoln Electric BULLDOG SVM208-A - page 57

    ENGINE PROBLEMS Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact the Lincoln Electric Service Department for technical troubles ...

  • Lincoln Electric BULLDOG SVM208-A - page 58

    ENGINE PROBLEMS Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact the Lincoln Electric Service Department for technical troubles ...

  • Lincoln Electric BULLDOG SVM208-A - page 59

    WELDING PROBLEMS Observe Safety Guidelines detailed in the beginning of this manual. PROBLEMS (SYMPTOMS) POSSIBLE AREAS OF MISADJUSTMENT(S) RECOMMENDED COURSE OF ACTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely , contact the Lincoln Electric Service Department for technical trouble ...

  • Lincoln Electric BULLDOG SVM208-A - page 60

    NOTES F-12 F-12 BULLDOG® 140 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 ...

  • Lincoln Electric BULLDOG SVM208-A - page 61

    Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed thr ...

  • Lincoln Electric BULLDOG SVM208-A - page 62

    200 A LEAD 200A CONNECTION GROUND STUD FIGURE F .1 – LOCA TION OF LEAD 200A FOR ROTOR VOL T AGE TEST ROT OR VOL T AGE TEST (continued) PROCEDURE 1. With the 3/8” nut driver , remove the 4 sheet metal screws that hold the top cover to the con- trol box. Remove the top cover . 2. Start the machine and run it at high idle. Set the output control ( ...

  • Lincoln Electric BULLDOG SVM208-A - page 63

    Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed thr ...

  • Lincoln Electric BULLDOG SVM208-A - page 64

    + ~ ~ - + - POSITIVE DC NEGA TIVE DC SINGLE PHASE BRIDGE CIRCUIT CONFIGURA TION FIGURE F .2 – DIODE BRIDGE CIRCUIT CONFIGURA TION FIELD DIODE BRIDGE TEST (continued) PROCEDURE The diode bridge is configured as pictured above. The individual diodes can be tested using a diode tester or an ohm meter . The diodes will read open one way and shorted t ...

  • Lincoln Electric BULLDOG SVM208-A - page 65

    Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed thr ...

  • Lincoln Electric BULLDOG SVM208-A - page 66

    SLIP RINGS 201A(-) 202A(+) FIGURE F .3 – BRUSH HOLDER LEADS 201(-) AND 202B (+) FIGURE F .4 – DIODE BRIDGE LEAD ASSIGNMENTS ROT OR “FLASHING” CIRCUIT TEST (continued) PROCEDURE 1. With the 3/8” nutdriver , remove the 20 sheet metal screws that hold the top cover to the con- trol box. Remove the top cover . 2. Locate and remove lead #201A ...

  • Lincoln Electric BULLDOG SVM208-A - page 67

    ROT OR “FLASHING” CIRCUIT TEST (continued) MOVING P ARTS can injure. Keep away from moving parts. ------------------------------------------------------------------- ENGINE EXHAUST can kill. Use in open, well ventilated areas or vent exhaust to the outside. ------------------------------------------------------------------- 5. Start the engine ...

  • Lincoln Electric BULLDOG SVM208-A - page 68

    NOTES F-20 F-20 BULLDOG® 140 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 ...

  • Lincoln Electric BULLDOG SVM208-A - page 69

    Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed thr ...

  • Lincoln Electric BULLDOG SVM208-A - page 70

    SLIP RINGS FIGURE F .5 – LOCA TION OF ROTOR SLIP RINGS - BRUSH HOLDER ASSEMBL Y REMOVED ROT OR RESIST ANCE TEST (continued) PROCEDURE 1. Conduct the test with the gasoline engine OFF . 2. Remove the spark plug wire to prevent acci- dental engine kickback or starting. 3. Isolate the rotor electrically by removing the generator brushes. Refer to Fi ...

  • Lincoln Electric BULLDOG SVM208-A - page 71

    CABLE TIE BRUSHES FIGURE F .6 – BRUSHES RET AINED WITH CABLE TIE ROT OR RESIST ANCE TEST (continued) 9. Reinstall the brush holder assembly after the test. Depress the spring-loaded brushes into the holder and slip a suitable non-metallic, fair- ly stiff retainer through the slots at the top and bottom of the holder . A cable tie works well; see ...

  • Lincoln Electric BULLDOG SVM208-A - page 72

    NOTES F-24 F-24 BULLDOG® 140 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 ...

  • Lincoln Electric BULLDOG SVM208-A - page 73

    Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed thr ...

  • Lincoln Electric BULLDOG SVM208-A - page 74

    MARK FIGURE F .7 – MARK LOCA TION ENGINE THROTTLE ADJUSTMENT TEST ROBIN/SUBARU ENGINE (continued) PROCEDURE This test can be conducted by any of three meth- ods. Strobe-tach Method: 1. Stop the engine and remove the spark plug wire to prevent accidental kickback or starting. 2. With the black or red marking pencil, place a mark on one of the blow ...

  • Lincoln Electric BULLDOG SVM208-A - page 75

    THRO T TLE L OCKING NUT FIGURE F .8 – LOCKING NUT LOCA TION HIGH SPEED ST OP SCRE W FIGURE F .9 – ST OP SCREW LOCA TION ENGINE THROTTLE ADJUSTMENT TEST ROBIN/SUBARU ENGINE (continued) 2. Using the 10mm socket wrench, slightly loosen the throttle locking nut. See Figure F .8. 3. Using the screwdriver , adjust the high speed stop screw until the ...

  • Lincoln Electric BULLDOG SVM208-A - page 76

    This is the typical AC output voltage generated from a properly operating machine. Note that each vertical divi- sion represents 50 volts and that each horizontal division represents 5 milliseconds in time. Note: Scope probes connected at machine output terminals. SCOPE SETTINGS V olts/Div .....................50V/Div . Horizontal Sweep .....5 ms/D ...

  • Lincoln Electric BULLDOG SVM208-A - page 77

    This is the typical AC output voltage generated from a properly operating machine. Note that each vertical divi- sion represents 50 volts and that each horizontal division represents 5 milliseconds in time. Note: Scope probes connected at machine 1 15 V AC receptacle. SCOPE SETTINGS V olts/Div .....................50V/Div . Horizontal Sweep .....5 ...

  • Lincoln Electric BULLDOG SVM208-A - page 78

    This is the typical AC output voltage generated from a properly operating machine. Note that each vertical divi- sion represents 20 volts and that each horizontal division represents 5 milliseconds in time. The machine was loaded with a resistance grid bank. Note: Scope probes connected at machine output terminals. SCOPE SETTINGS V olts/Div ....... ...

  • Lincoln Electric BULLDOG SVM208-A - page 79

    Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed thr ...

  • Lincoln Electric BULLDOG SVM208-A - page 80

    CABLE TIE BRUSHES FIGURE F .10 – BRUSHES RET AINED WITH CABLE TIE BRUSH REMOV AL AND REPLACEMENT (continued) PROCEDURE 1. Remove the spark plug wire. 2. Open the brush holder assembly cover . Squeeze the 2 tabs and depress the cover at the top with a screw driver or your fingernail. The cover will drop open on its bottom hinge. 3. With the 1/4” ...

  • Lincoln Electric BULLDOG SVM208-A - page 81

    BRUSH REMOV AL AND REPLACEMENT (continued) 8. T o reinstall the brush holder assembly , depress the spring-loaded brushes into the holder and slip a suitable non-metallic, fairly stiff retainer through the slots at the top and bottom of the holder . A cable tie works well; see Figure F .10 . This will hold the brushes up so that you can easily inst ...

  • Lincoln Electric BULLDOG SVM208-A - page 82

    NOTES F-34 F-34 BULLDOG® 140 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 ...

  • Lincoln Electric BULLDOG SVM208-A - page 83

    Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed thr ...

  • Lincoln Electric BULLDOG SVM208-A - page 84

    FIGURE F .1 1 – RHEOST A T REMOV AL RHEOST A T REMOV AL AND REPLACEMENT (continued) PROCEDURE 1. Remove the spark plug wire. 2. With the 3/8” nut driver , remove the 4 sheet metal screws that hold the top cover to the con- trol box. Remove the top cover . 3. With the small slot head screw driver , loosen the screw that holds the knob to the rhe ...

  • Lincoln Electric BULLDOG SVM208-A - page 85

    Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed thr ...

  • Lincoln Electric BULLDOG SVM208-A - page 86

    201 201A (-) 202 202A (+) Attachment for Attachment for Jumper Capacitor Cable T ie FIGURE F .12 – LOCA TION AND DISCHARGING THE FIELD CAP ACITOR CAP ACITOR AND/OR DIODE BRIDGE REMOV AL AND REPLACEMENT (continued) PROCEDURE - CAP ACITOR REMOV AL AND REPLACEMENT 1. Remove the engine spark plug wire. 2. With the 3/8” nut driver , remove the 4 she ...

  • Lincoln Electric BULLDOG SVM208-A - page 87

    Feild Diode Bridge CAP ACITOR AND/OR DIODE BRIDGE REMOV AL AND REPLACEMENT (continued) PROCEDURE - FIELD DIODE BRIDGE REMOV AL AND REPLACEMENT 1. Remove the engine spark plug wire. 2. With the 3/8” nut driver , remove the 8 sheet metal screws that hold the top cover to the con- trol box. Remove the top cover . 3. With the 3/8” nut driver and wr ...

  • Lincoln Electric BULLDOG SVM208-A - page 88

    NOTES F-40 F-40 BULLDOG® 140 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 ...

  • Lincoln Electric BULLDOG SVM208-A - page 89

    Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty . For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed thr ...

  • Lincoln Electric BULLDOG SVM208-A - page 90

    GENERA TOR ENGINE FIGURE F .14 – GENERA TOR AND ENGINE LOCA TION ST A TOR/ROT OR REMOV AL AND REPLACEMENT (continued) PROCEDURE 1. Remove control panel cove by removing the 20 screws with a 3/8” nutdriver . 2. Remove the right case side by removing the 5 screws using a 3/8” nutdriver . 3. Make sure the run/of f switch on the rear of the engin ...

  • Lincoln Electric BULLDOG SVM208-A - page 91

    BEARING BRACKET END COVER END BRACKET MACHINING ST A TOR LAMINA TION ASSEMBL Y THRU BOL T ROTOR BRUSH ASSEMBL Y FIGURE F .15 – GENERA TOR COMPONENTS ST A TOR/ROT OR REMOV AL AND REPLACEMENT (continued) 6. Remove the brush assembly from the slip ring end bracket. 7. Remove the (4) long HHCS and hardware along with the slip ring end bracket. 8. Car ...

  • Lincoln Electric BULLDOG SVM208-A - page 92

    ST A TOR/ROT OR REMOV AL AND REPLACEMENT (continued) 12. If impact wrench is available, rapidly torque impact bolt until rotor “pops” off of tapered engine crank. If impact wrench is unavailable , restrain rotor and tighten bolt with socket wrench until rotor “pops” off. A slight tap of the impact bolt with a babbitt hammer may be required. ...

  • Lincoln Electric BULLDOG SVM208-A - page 93

    OUTPUT TERMINALS W1 W2 TIE WRAP FIGURE F .16 – OUTPUT LEAD LOCA TION ST A TOR/ROT OR REMOV AL AND REPLACEMENT (continued) ST A TOR REMOV AL PROCEDURE 1. Remove engine spark plug wire to prevent acci- dental kickback or starting. 2. With the 5/16” nutdriver , remove the 4 sheet metal screws that hold the top cover to the con- trol box. Remove th ...

  • Lincoln Electric BULLDOG SVM208-A - page 94

    THRU- BOL TS THRU- BOL TS NUTS SUPPORT FIGURE F .17 – ST A TOR END BRACKET SUPPORT AND THRU-BOL TS ST A TOR/ROT OR REMOV AL AND REPLACEMENT (continued) 12. Slide a short length of 2 X 4 under the engine to support it when the stator is removed. 13. With the 1/2” socket wrench, remove the 2 nuts that hold the stator end bracket support. See Figu ...

  • Lincoln Electric BULLDOG SVM208-A - page 95

    ROT OR THRU-BOL T FIGURE F .18 – ROT OR WITH ST A TOR REMOVED ST A TOR/ROT OR REMOV AL AND REPLACEMENT (continued) ROTOR REMOV AL PROCEDURE 1. T o remove the rotor , double check that the spark plug wire is disconnected. Y ou will be turning the rotor during this procedure, and this could accidentally cause engine kickback. 2. With an impact wren ...

  • Lincoln Electric BULLDOG SVM208-A - page 96

    ROTOR ST A TOR FEELER GAUGE FIGURE F .19 – CHECKING ROTOR-ST A TOR AIR GAP ST A TOR/ROT OR REMOV AL AND REPLACEMENT (continued) 6. Install the bottom two end bracket thru-bolts. NOTE: The flat washer goes on the top right hand thru-bolt for the green ground wire. 7. T ap the end bracket with the mallet as neces- sary to position it. Tighten the b ...

  • Lincoln Electric BULLDOG SVM208-A - page 97

    TROUBLESHOOTING AND REP AIR F-49 F-49 BULLDOG® 140 RETEST AFTER REP AIR Retest a machine: • If it is rejected under test for any reason that requires you to remove any mechanical part which could affect the machine’s electrical characteristics. OR • If you repair or replace any electrical components. ENGINE OUTPUT No Load RPM Load RPM Maximu ...

  • Lincoln Electric BULLDOG SVM208-A - page 98

    NOTES F-50 F-50 BULLDOG® 140 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 ...

  • Lincoln Electric BULLDOG SVM208-A - page 99

    T ABLE OF CONTENTS - DIAGRAM SECTION G-1 G-1 BULLDOG® 140 Electrical Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .G-1 Wiring Diagram (L15064) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Lincoln Electric BULLDOG SVM208-A - page 100

    ElEcTrical DiaGramS G-2 BullDOG® 140 WiriNG DiaGram - cOmplETE machiNE - (l15064) 6 5 3 CB1 20 A J6 9 7 + - ROTOR FIELD S LI P RI NG S W1 W2 CB1 20 A 6A 6B GND -F 3B 3A GND-E 3 GN D-C GROUN D S TU D O N CO NT RO L PANE L F RO NT WORK GND-H GN D-C 5 5A 5A NE UT RA L S TU D O N CO NT ROL PANE L BO TT OM GND GN D MO DU LE LOW OIL SW IT CH RUN/ ST OP ...

  • Lincoln Electric BULLDOG SVM208-A - page 101

    ElEcTrical DiaGramS G-3 BullDOG® 140 SchEma Tic - cOmplETE machiNE - (S28101) S28101 BU LL DO G 140 MACHI N E SCHE M AT IC NONE S28100 mp atr z yk APM DRS DO N OT S CA L E TH IS D RA WING DR AW N BY : ENGIN EER : EQ UIPM ENT TY PE: SUBJECT: SC ALE : UF CR M40 76 0-A 1 PAGE _ _ _ OF __ _ 1 EN GI NEE RIN G CO NTR OL L ED M AN UF ACTU RE R: No R EVIS ...

Manufacturer Lincoln Electric Category Portable Generator

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All of them are important, but the most important information from the point of view of use of the device are in the user manual Lincoln Electric BULLDOG SVM208-A.

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A complete Lincoln Electric manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

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