Page 2 - SAFETY; WARNING; CALIFORNIA PROPOSITION 65 WARNINGS; The Above For Diesel Engines
FOR ENGINEpowered equipment. 1.a. Turn 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 fumesoutdoors. ...
Page 3 - ii
ARC RAYS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks andthe rays of the arc when welding or observingopen arc welding. Headshield and filter lensshould conform to ANSI Z87. I standards. 4.b. Use suitable clothing made from durable flame-resist...
Page 4 - iii
FOR ELECTRICALLYpowered equipment. 8.a. Turn off input power using the disconnect switch at the fuse box before working onthe equipment. 8.b. Install equipment in accordance with the U.S. National Electrical Code, all local codes and the manufacturer’srecommendations. 8.c. Ground the equipment in ac...
Page 5 - iv; PRÉCAUTIONS DE SÛRETÉ
iv SAFETY iv Mar. ‘93 PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instruc- tions et les précautions de sûreté specifiques qui parraissent d a n s c e m a n u e l a u s s i b i e n q u e l e s p r é c a u t i o n s d e s û r e t é générales suivantes: Sûreté Pour So...
Page 6 - Please Examine Carton and Equipment For Damage Immediately
v v TThhaannkk Y Yoouu for selecting a QUALITY product by Lincoln Electric. We want youto take pride in operating this Lincoln Electric Company product••• as much pride as we have in bringing this product to you! Read this Operators Manual completely before attempting to use this equipment. Save thi...
Page 7 - Page; TABLE OF CONTENTS
Page Safety i-iv Installation ............................................................................................................................. Section A Technical Specifications ................................................................................................................
Page 8 - INSTALLATION; INPUT - GASOLINE ENGINE
TECHNICAL SPECIFICATIONS - 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...
Page 9 - SAFETY PRECAUTIONS; ELECTRIC SHOCK can kill.; LOCATION AND VENTILATION; STORING
A-2 INSTALLATION BULLDOG™ 140 A-2 SAFETY PRECAUTIONS Read this entire installation section before youstart installation. Do not attempt to use this equipment until youhave thoroughly read all the operation and main-tenance manuals supplied with your machine.T h e y i n c l u d e i m p o r t a n t s ...
Page 10 - Certified EX 30; BULLDOGTM 140 Typical Fuel; • Keep hands away from muffler or HOT engine; R e a d a n d u n d e r s t a n d t h e e n g i n e o p e r a t i n g a n d
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 Load3750 RPM ±100 R.P.M. AC CC Weld Output80 Amps @ 25 Volts Auxiliary Power 4000Watts (120/240 Volts) BULLDOG™ 140 Typical Fuel Consumption A-3 I...
Page 11 - See; WELDING CABLE CONNECTIONS; lists recommended cable sizes and lengths; BULLDOGTM 140 OUTPUT CONNECTIONS
A-4 INSTALLATION BULLDOG™ 140 A-4 ELECTRICAL OUTPUT CONNECTIONS See Figure A.1 for the location of the current control d i a l , w e l d o u t p u t t e r m i n a l s , g r o u n d s t u d , c i r c u i tbreakers, 240 and 120 volt receptacles. WELDING CABLE CONNECTIONS Cable Size and Length Be sure ...
Page 12 - Cable Installation; Tighten the flanged nuts securely.; • Loose connections will cause the output termi-; section of this manual for more infor-; ELECTRICAL CONNECTIONS; MACHINE GROUNDING; Be grounded to the frame of the welder using a; PLUGS AND HAND-HELD EQUIPMENT; cle; CAUTION
A-5 INSTALLATION BULLDOG™ 140 A-5 Cable Installation Install the welding cables to your BULLDOG™ 140 asfollows. 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 outputterminals. 3. Connect the electr...
Page 13 - PREMISES WIRING
A-6 INSTALLATION BULLDOG™ 140 A-6 PREMISES WIRING T h e B U L L D O G ™ 1 4 0 i s n o t r e c o m m e n d e d f o rpremises wiring. The BULLDOG™ 140 does not have a combined120/240 volt receptacle and cannot be connected toa premises as described in other Lincoln literature. Remember that the BULLDO...
Page 14 - ELECTRICAL DEVICE USE WITH THE BULLDOGTM 140.
A-7 INSTALLATION BULLDOG™ 140 A-7 CAUTION Certain Electrical devices cannot be powered by the BULLDOG™ 140. See Table A.2. TABLE A.2 ELECTRICAL DEVICE USE WITH THE BULLDOG™ 140. Type Common Electrical Devices Possible Concerns Resistive Heaters, toasters, incandescent NONE light bulbs, electric rang...
Page 15 - OPERATION
B-1 OPERATION B-1 SAFETY INSTRUCTIONS Read and understand this entire section before oper-ating your BULLDOG™ 140. Do not attempt to use this equipment until youhave thoroughly read all the operation and main-tenance manuals supplied with your machine.T h e y i n c l u d e i m p o r t a n t s a f e ...
Page 16 - LIMITATIONS; DO NOT; CONTROLS AND SETTINGS; WELDER/GENERATOR CONTROLS; WORK; OUTPUT PANEL CONTROLS
B-2 OPERATION B-2 LIMITATIONS • The BULLDOG™ 140 is not recommended for any processes besides those that are normally per-formed using stick welding (SMAW) procedures. • The BULLDOG™ 140 is not recommended for pipe thawing. • During welding, generator power is limited to 100 watts, and output voltag...
Page 17 - GASOLINE ENGINE CONTROLS; ENGINE OPERATION
B-3 OPERATION B-3 BULLDOG™ 140 GASOLINE ENGINE CONTROLS Refer to your engine manual for the location of thefollowing features: 1. FUEL SHUTOFF VALVE: Stops the flow of gaso-line from the fuel tank to the carburetor. Shouldbe closed whenever you are finished using theBULLDOG™ 140. Must be opened befo...
Page 18 - BEFORE STARTING THE ENGINE; CHECK AND FILL THE ENGINE OIL LEVEL:; STARTING THE ENGINE
4. Pull the cord rapidly. 5. I f t h e e n g i n e d o e s n o t s t a r t , o p e n t he c h o k eslightly and pull the starter cord rapidly again. When the engine starts, gradually open the choketo the “RUN” position. To open the choke fullyrequires an engine warm-up period of severalseconds to se...
Page 19 - GENERATOR OPERATION; GENERAL INFORMATION; TO USE THE; Start the gasoline engine. See; TION; in this section of the manual and the engine; STOPPING THE ENGINE; Close the fuel shutoff valve.; RUNNING THE ENGINE
GENERATOR OPERATION Be sure that any electrical equipment plugged intothe generator’s AC power receptacles can with-stand a ±10% voltage and a ±4% frequency varia-tion. Some electronic devices cannot be poweredby the BULLDOG™ 140. Refer to Table A.2, ELEC-TRICAL DEVICE USE WITH THE BULLDOG™ 140,in t...
Page 21 - WELDING OPERATION; D u t y c y c l e i s b a s e d o n a t e n m i n u t e
B-7 OPERATION B-7 WELDING OPERATION GENERAL INFORMATION 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. --------------------------------------------------...
Page 22 - Stick Welding; WELDING GUIDELINES; WELDING APPLICATIONS/ELECTRODE SELECTION GUIDE; Learning To Stick Weld
Stick welding is probably the most familiar weldingprocess known. A coated ELECTRODE, the weld rod,is clamped into an ELECTRODE HOLDER, an insulat-ed clamping device, which in turn connects to theELECTRODE CABLE, a heavy wire. The WORK, themetal piece to be welded, is connected to the WORKC A B L E ...
Page 23 - What Happens in the Arc?
B-9 OPERATION B-9 BULLDOG™ 140 No one can learn to weld simply by reading about it.Skill comes only with practice. The following pageswill help the inexperienced welder understand weldingand develop his skill. For more detailed information,o r d e r a c o p y o f t h e b o o k “ N e w L e s s o n s ...
Page 24 - The Correct Welding Position; Figure 5; side view; The Correct Way to Strike An Arc; Molten puddle
B-10 OPERATION B-10 BULLDOG™ 140 The function of the covered electrode is much morethan simply to carry current to the arc. The electrodeis composed of a core metal wire around which hasbeen extruded and baked a chemical covering. Thecore wire melts into the arc and tiny droplets of moltenmetal shoo...
Page 25 - PRACTICE; is to spend a little more time on the following exercise.; Common Metals; Butt Joints
B-11 OPERATION B-11 BULLDOG™ 140 PRACTICE The best way of getting practice in the four skills thatenable 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 f...
Page 26 - Penetration; Good
B-12 OPERATION B-12 BULLDOG™ 140 Now weld the two plates together. Weld from left toright (if right-handed). Point the electrode down in hegap between the two plates, keeping the electrodesslightly tilted in the direction of travel. Watch the molten metal to be sure it distributes itselfevenly on bo...
Page 27 - Vertical-Down Welding
B-13 OPERATION B-13 BULLDOG™ 140 Vertical-Up Welding The problem, when welding vertical-up, is to put themolten metal where it is wanted and make it staythere. If too much molten metal is deposited, gravitywill pull it downwards and make it “drip”. Therefore, acertain technique has to be followed: 1...
Page 28 - Overhead Welding; Side View
B-14 OPERATION B-14 BULLDOG™ 140 Overhead Welding Various techniques are used for overhead welding.However, in the interest of simplicity for the inexperi-enced welder, the following technique will probablytake care of his needs for overhead welding: 1. Use 1/8” (3.2mm) 90-105 A or 3/32” (2.5mm) 70 ...
Page 29 - The bead should be put on with a weaving motion,; Welding Cast Iron; that spot again until the weld is cool.; Cast Iron Plate Preparation; hot
B-15 OPERATION B-15 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. Donot let the arc blow over the edge, as that will dullthe edge. (See drawing below.) 5. Use the back-stepping method. Begin to weld 3” (76mm) from the heel of the share...
Page 30 - Selecting Electrodes; Motions
B-16 OPERATION B-16 BULLDOG™ 140 High-Speed Group (AWS E6013) This group includes electrodes which have a moder-ately forceful arc and deposit rates between those ofthe out-of-position and high-deposit electrodes. They are primarily general purpose production elec-trodes especially for downhill fill...
Page 31 - ACCESSORIES; LINCOLN ELECTRIC ACCESSORIES; – Includes the following:
C-1 ACCESSORIES C-1 OPTIONS/ACCESSORIES LINCOLN ELECTRIC ACCESSORIES The following options/accessories are available fory o u r B U L L D O G ™ 1 4 0 f r o m y o u r l o c a l L i n c o l nDistributor. Accessory Kit (K875) – Includes the following: • 20 Ft.(6.1m) #6 welding cable with lug . • 1 5 Ft...
Page 32 - MAINTENANCE; • Have qualified personnel do all maintenance; ENGINE MAINTENANCE; Check the oil level after every 5; LOCATION
D-1 MAINTENANCE D-1 BULLDOG™ 140 SAFETY PRECAUTIONS • Have qualified personnel do all maintenance and troubleshooting work. • Turn the engine off before working inside the machine. • Remove guards only when necessary to per- form maintenance and replace them when themaintenance requiring their remov...
Page 33 - At the end of each day’s use, refill; ENGINE ADJUSTMENTS; Squeeze in a clean, absorbent cloth to remove all; Clean Finger Guard Area:; If your BULLDOGTM 140 is; CLEAN COOLING SYSTEM:; REMOVE DIRT AND DEBRIS FROM THIS LOWER
D-2 MAINTENANCE D-2 FUEL: At the end of each day’s use, refill the fuel tank to minimize moisture conden-sation and dirt contamination in the fuel line. ENGINE ADJUSTMENTS O V E R S P E E D I S H A Z A R D O U S - T h e m a x i m u mallowable high idle speed for this machine is 3750RPM, no load. DO ...
Page 34 - Champion RL 86C; PART; SPARK PLUG; C L E A N O R R E P L A C E S P A R K P L U G :; C l e a n o r; CLEAN SPARK ARRESTER SCREEN:; Refer to the; ENGINE MAINTENANCE PARTS; SPARK PLUG SERVICE
ROBIN / SUBARU PART # Champion RL 86C (GAP .025” [.65mm]) 279-32612-08 PART SPARK PLUG (RESISTOR) AIR FILTER ELEMENT D-3 MAINTENANCE D-3 BULLDOG™ 140 Refer to Table D.1 for engine maintenance parts. Thepart numbers are accurate at the time of printing.(Verify the current part number by referring to ...
Page 35 - GENERATOR/WELDER MAINTENANCE; B R U S H R E M O V A L A N D R E P L A C E M E N T :; FIGURE D.6. – BRUSH REMOVAL AND REPLACEMENT
D-4 MAINTENANCE D-4 BULLDOG™ 140 GENERATOR/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 leastonce a week in particularly dirty areas. B R U S H R E M O V A L A N D R E P...
Page 37 - TROUBLESHOOTING
BULLDOG™ 140 E-1 TROUBLESHOOTING E-1 If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact yourLocal Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed. CAUTION This Troubleshooting Gu...
Page 38 - Observe all Safety Guidelines detailed throughout this manual; PROBLEMS
E-2 TROUBLESHOOTING E-2 BULLDOG™ 140 Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact yourLocal Lincoln Authorized Field Service Facility for technical troubleshooting ...
Page 41 - DIAGRAMS; Enhanced Diagram
F-1 DIAGRAMS F-1 BULLDOG™ 140 NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diag ram for a particular code is pasted inside the machine on one of the enclosure panels. If the diagram is illegible, write to the Service Departmen...
Page 42 - DIMENSION PRINT
F-2 DIMENSION PRINT F-2 BULLDOG™ 140 M 2 2 1 4 6 A .0 1 6 .7 5 2 9 .0 0 3 1 .4 7 N O T E S : N .A . C E N T E R O F G R A V IT Y W IT H O IL I N E N G IN E A N D E M P T Y F U E L T A N K . N .A . 2 1 .6 0 2 5 .6 2 7 .7 9 9 .1 2 1 3 .8 8
Page 43 - NOTES