251 ® FABRICATOR MIG WELDING MACHINE Art # A-08561 Operating Manual Revision: AB Operating Features: Issue Date: August 22, 2008 208 V 230 V Manual No.
! WARNINGS Read and understand this entire Manual and your employer’s safety practices before installing, operating, or servicing the equipment. While the information contained in this Manual represents the Manufacturer's best judgement, the Manufacturer assumes no liability for its use. Fabricator 251 MIG Welding Machine Instruction Manual Number 0-5098 for: Package System Part Number 100048DVN Power Source Part Number 871987 Published by: Valley National Gases LLC 67-43rd Street P.O.
TABLE OF CONTENTS SECTION 1: SAFETY INSTRUCTIONS AND WARNINGS ....................................................... 1-1 1.01 1.02 1.03 1.04 1.05 1.06 1.07 Arc Welding Hazards ...................................................................................... 1-1 Principal Safety Standards ............................................................................. 1-4 Symbol Chart .................................................................................................
TABLETABLE OF CONTENTS OF CONTENTS (continued) SECTION 4: OPERATION ........................................................................................... 4-1 4.01 Power Supply Controls, Indicators and Features ............................................ 4-1 4.02 Weld Mode Selector ....................................................................................... 4-6 4.03 400 Amp Air-Cooled MIG Gun ........................................................................ 4-8 4.
SAFETY INSTRUCTIONS FABRICATOR 251 SECTION 1: SAFETY INSTRUCTIONS AND WARNINGS ! WARNING PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDREN AWAY. PACEMAKER WEARERS KEEP AWAY UNTIL CONSULTING YOUR DOCTOR. DO NOT LOSE THESE INSTRUCTIONS. READ OPERATING/INSTRUCTION MANUAL BEFORE INSTALLING, OPERATING OR SERVICING THIS EQUIPMENT.
FABRICATOR 251 SAFETY INSTRUCTIONS 3. Use protective screens or barriers to protect others from flash and glare; warn others not to watch the arc. WARNING 4. Wear protective clothing made from durable, flame-resistant material (wool and leather) and foot protection. WELDING can cause fire or explosion. 5. Use approved ear plugs or ear muffs if noise level is high. Sparks and spatter fly off from the welding arc.
SAFETY INSTRUCTIONS FABRICATOR 251 2. If used in a closed area, vent engine exhaust outside and away from any building air intakes. WARNING WARNING FLYING SPARKS AND HOT METAL can cause injury. Chipping and grinding cause flying metal. As welds cool, they can throw off slag. ENGINE FUEL can cause fire or explosion. Engine fuel is highly flammable. 1. Wear approved face shield or safety goggles. Side shields recommended. 1. Stop engine before checking or adding fuel. 2.
FABRICATOR 251 SAFETY INSTRUCTIONS 1.02 WARNING STEAM AND PRESSURIZED HOT COOLANT can burn face, eyes, and skin. The coolant in the radiator can be very hot and under pressure. 1. Do not remove radiator cap when engine is hot. Allow engine to cool. 2. Wear gloves and put a rag over cap area when removing cap. 3. Allow pressure to escape before completely removing cap.
SAFETY INSTRUCTIONS 1.03 FABRICATOR 251 Symbol Chart Note that only some of these symbols will appear on your model. On Single Phase Wire Feed Function Off Three Phase Wire Feed Towards Workpiece With Output Voltage Off.
FABRICATOR 251 1.04 SAFETY INSTRUCTIONS Precautions De Securite En Soudage A L’arc ! MISE EN GARDE LE SOUDAGE A L’ARC EST DANGEREUX PROTEGEZ-VOUS, AINSI QUE LES AUTRES, CONTRE LES BLESSURES GRAVES POSSIBLES OU LA MORT. NE LAISSEZ PAS LES ENFANTS S’APPROCHER, NI LES PORTEURS DE STIMULATEUR CARDIAQUE (A MOINS QU’ILS N’AIENT CONSULTE UN MEDECIN). CONSERVEZ CES INSTRUCTIONS. LISEZ LE MANUEL D’OPERATION OU LES INSTRUCTIONS AVANT D’INSTALLER, UTILISER OU ENTRETENIR CET EQUIPEMENT.
SAFETY INSTRUCTIONS FABRICATOR 251 AVERTISSEMENT AVERTISSEMENT LE RAYONNEMENT DE L’ARC PEUT BRÛLER LES YEUX ET LA PEAU; LE BRUIT PEUT ENDOMMAGER L’OUIE. LES VAPEURS ET LES FUMEES SONT DANGEREUSES POUR LA SANTE. L’arc de soudage produit une chaleur et des rayons ultraviolets intenses, susceptibles de brûler les yeux et la peau. Le bruit causé par certains procédés peut endommager l’ouïe. Le soudage dégage des vapeurs et des fumées dangereuses à respirer. 1.
FABRICATOR 251 SAFETY INSTRUCTIONS 7. Ne soudez des tôles galvanisées ou plaquées au plomb ou au cadmium que si les zones à souder ont été grattées à fond, que si l’espace est bien ventilé; si nécessaire portez un respirateur à adduction d’air. Car ces revêtements et tout métal qui contient ces éléments peuvent dégager des fumées toxiques au moment du soudage. 1. Portez un écran facial ou des lunettes protectrices approuvées. Des écrans latéraux sont recommandés. 2.
SAFETY INSTRUCTIONS FABRICATOR 251 4. N’utilisez pas une source de courant de soudage pour charger un accumulateur ou survolter momentanément un véhicule. AVERTISSEMENT 5. Utilisez la polarité correcte (+ et –) de l’accumulateur. LE CARBURANT PEUR CAUSER UN INCENDIE OU UNE EXPLOSION. Le carburant est hautement inflammable. AVERTISSEMENT 1. Arrêtez le moteur avant de vérifier le niveau e carburant ou de faire le plein.
FABRICATOR 251 1.07 SAFETY INSTRUCTIONS Graphique de Symbole Seulement certains de ces symboles apparaîtront sur votre modèle.
FABRICATOR 251 SECTION 2: INTRODUCTION 2.01 How To Use This Manual This Operating Manual applies to only the specification or part numbers listed on page i. To ensure safe operation, read the entire manual, including the chapter on safety instructions and warnings. Throughout this manual, the words WARNING, CAUTION, and NOTE may appear. Pay particular attention to the information provided under these headings.
FABRICATOR 251 2.04 General Information 2.06 Protective Filter Lenses The Fabricator 251 is a semiautomatic Gas Metal Arc Welder (GMAW-commonly MIG) with an integrated wire feed unit. This Power Supply is designed to meet the broad operating needs of the metal fabrication industry where production efficiency is vital. The Fabricator 251 is designed and manufactured to meet the requirements of CSA and IEC 60974-1 standards.
FABRICATOR 251 2.08 Duty Cycle The rated duty cycle of a welding Power Supply is the operating time it may be used at its rated output current without exceeding the temperature limits of the insulation of the component parts. To explain the ten minute duty cycle period the following example is used. Suppose a welding Power Supply is designed to operate at 60% duty cycle, 250 amperes at 26.5 volts.
FABRICATOR 251 Fabricator 251 100048DVN Package System Part Number 871987 Power Source Part Number 227lb (103kg) Power Source Weight Power Source Dimensions HxWxD (including wheels and cylinder carrier) Nominal Input Voltage 32” x 27-3/16” x 36-3/4” (813 x 691 x 933mm) 208V 230V 1Ø Number of Phases 60 Hz Frequency 10ft (3m) 10AWG NEMA 6-50P Flexible Supply Cable Size Supply Plug Rated Input Current @ 100% Duty Cycle * 36A * 32.6A 7.5 kVA 7.
FABRICATOR 251 2.10 Included Items Fabricator 251 Package SystemContents Factory Fitted Wheeling Kit Factory Fitted Dual Cylinder Rack Factory Fitted Primary Power Cable 8AWG, 10ft (3m) with Plug NEMA 6-50P Work Lead 10ft (3m) Cable Stowage Hooks Regulator/Flow Meter – Argon Mix Gases Valley National Gases air cooled MIG Gun, 400 Amp, 15ft (4.5m) Fitted Feed Roll for .035” - .045” (0.9 – 1.2mm) solid wire Table 2-5: System Contents 2.
FABRICATOR 251 NOTES: 2-6 August 22, 2008
FABRICATOR 251 SECTION 3: INSTALLATION 3.01 Environment 3.02 Location Be sure to locate the Power Supply according to the following guidelines: In areas, free from moisture and dust. In areas, free from oil, steam and corrosive gases. The Fabricator 251 is NOT designed for use in environments with increased hazard of electric shock.
FABRICATOR 251 3.04 Mains Supply Voltage Requirements The Mains supply voltage should be within ± 10% of the rated Mains supply voltage. Too low of a supply voltage may cause poor welding performance or wirefeeder malfunction. Too high of a supply voltage will cause components to overheat and possibly fail. Install a power outlet for each Power Supply and fit fuses as per the machine specifications.
FABRICATOR 251 Changing the Voltage Selection 1. Disconnect the power supply from the input power source. 2. Refer to Figure 3-1. The power supply comes wired for 230V. Locate the two blue input power wires where they are secured to the input voltage selection block. Loosen the set screw for both voltage locations. 3. Remove the blue wires from the current location and insert them into the new voltage location. Secure by tightening the set screw onto the uninsulated portion of the wires.
FABRICATOR 251 7. Fit the electrode wire spool to the wire reel hub located behind the electrode wire compartment door. 3.06 Quick Setup CAUTION To obtain adequate air flow and cooling for the Power Supply components, the four wheels must be fitted. Alternatively, the Power Supply may be raised 5.5" (140 mm)from the floor using supports that do not restrict airflow. 8. Fit the Valley National Gases MIG gun and trigger wires through/to the front of the unit. 9. Remove the contact tip from the gun. 10.
FABRICATOR 251 1 Cap 2 Shielding Gas “Cracking” /8” 3 4 Regulator and Flow Meter 11 Shielding Gas Shielding Gas Shielding Gas Stowage Hook Art # A-07278 5 Gas Hose Figure 3-2 Gas Cylinder Installation August 22, 2008 3-5
FABRICATOR 251 Adjusting Regulator Adjust control knob of regulator to the required flow rate, indicated on gauge dial. (Refer to Figure 3-3) The gas flow rate should be adequate to cover the weld zone to stop weld porosity. Excessive gas flow rates may cause turbulence and weld porosity.
FABRICATOR 251 3.08 Attaching the Gun and Cable Assembly to the Power Source The Fabricator 251 is supplied with a Valley National Gases 400 AMP air-cooled gun. This MIG gun is designed with an ergonomic handle and fewer parts to reduce performance problems. It also uses standard readily available Valley National Gases consumable parts. 1. Open the door panel to the machine by inserting your left and right index fingers into the two release mechanisms marked with hand arrows in Figure 3-4.
FABRICATOR 251 Front Panel Access Hole Art # 0-7148 Trigger Receptacle Figure 3-5: Route Gun Cable Through Front Panel Access Hole and Connect Trigger Loosen Thumbscrew Art # A-07149 Tighten Thumbscrew Figure 3-6: Mount Gun Cable to Adapter Socket 3-8 August 22, 2008
FABRICATOR 251 3.09 Input And Output Wire Guide Installation To ensure proper wire feed, the groove closest to the motor must match the electrode wire size being used. Refer to Figure 3-7. .045” (1.2mm) Stamping Install the input wire guide (the longer one) by loosening the input guide lockscrew and inserting the guide into the hole in the feedhead assembly. The recessed end of the guide should be toward the wire spool.
FABRICATOR 251 3.11 Installing Wire Spool As delivered from the factory, the unit is set for a 33/44 lb. or 12" (300mm) spool. Installation of wire spool 1. Remove Wire Spool Hub Nut by turning counter clock wise (to the left). 2. Remove the spring from the hub. 3. Place Wire Spool onto the hub, loading it so that the wire will feed off the bottom of the spool as the spool rotates counter clockwise. Make sure to align the spool alignment pin on the hub with the mating hole in the wire spool. 4.
FABRICATOR 251 3.12 Inserting Wire into the Feedhead WARNING ELECTRIC SHOCK CAN KILL! Make certain the input power is disconnected from the power supply before proceeding. Do not reattach the input power until told to do so in these instructions. 1. Loosen the Spring Pressure Adjusting Knob if needed and swing it down (First part of Figure. 3-10) 2. Move the Pressure (top) Roller Arm by swinging it to the right. (Second part of Figure. 3-10) 3.
FABRICATOR 251 Wheel Brake Hex Head Bolt Pressure Adjustment Device Art # A-07162 Spool Hub Nut Figure 3-12: Wire Installed 3.13 Wirefeeder Drive Roller Pressure Adjustment The roller on the swing arm applies pressure to the grooved roller via an adjustable tension devise. The Tension Adjuster should be set to a minimum pressure that will provide satisfactory wire feed without slippage.
FABRICATOR 251 3.15 Spool Gun Attachment A spool gun can readily be used with the Fabricator 251 power supply. 1. Attach appropriate input gas to the Spool Gun Gas Input Connection on the rear of the unit (refer to Figure. 3-13). 2. Attach the Spool Gun Control Cable and gas hose to the 10 pin socket and the Spool Gun Gas Outlet on the front of the unit (refer to Figure. 3-13).
FABRICATOR 251 3.16 Polarity Changeover WARNING ELECTRIC SHOCK CAN KILL! Make certain the input power is disconnected from the power supply before proceeding. Do not reattach the input power until told to do so in these instructions. The output terminals are located on the front panel of the welding power source. CABLE TO GUN, CABLE TO WORK CABLE CONNECTIONS CABLE TO GUN CABLE TO WORK 1. GMAW* – Steel, Stainless Steel, 1. Connected to (+) 1. Connected to (-) 1. D.C.
FABRICATOR 251 Work Lead Connected for D.C. Electrode Negative (DCEN) Welding Art # A-07164 Figure 3-15: Polarity Connections for DCEN Changing polarity process. a. Locate the two terminal knobs at the front of the machine. Refer to Figures 3-14 and 3-15. b. Remove both terminal knobs by rotating counterclockwise. c. Set up the desired lead polarity as per Table 3-3 and as shown in Figures 3-14 or 3-15. d. Place the Work Lead cable on the opposite terminal. e.
FABRICATOR 251 NOTES: 3-16 August 22, 2008
FABRICATOR 251 SECTION 4: OPERATION WARNING DO NOT TOUCH the electrode wire while it is being fed through the system. The electrode wire will be at welding voltage potential. 4.
FABRICATOR 251 On / Standby Power Switch The indicator light is provided to indicate when the Fabricator 251 is connected to the Input Power Supply Voltage. With the switch in the Standby position, the auxiliary power and the fan are turned off and the switch is illuminated. WARNING When the light is lit, the machine is connected to the Mains supply voltage and the internal electrical components are at Mains voltage potential.
FABRICATOR 251 Digital AMP Reading to IPM Conversion STEEL 900 800 600 ST EE L) 500 400 300 L) EE (.0 23 - Wire Speed (IPM) 700 30 T -S 35 (.0 ) EL (.0 TE -S (.045 200 EL) - STE 100 0 25 50 75 100 125 150 175 200 225 250 275 Current (Amps) 300 325 Art # A-07451 Figure 4-3: Steel - AMP to IPM Conversion STAINLESS STEEL 900 800 Wire Speed (IPM) 700 600 500 S) 400 23 -S S) S) (.0 300 S 0- 3 (.0 5 .03 -S ( S) 5-S (.
FABRICATOR 251 ALUMINUM 900 800 Wire Speed (IPM) 700 600 L) A 0- 3 (.0 500 35 ) AL (.0 400 (.047 - AL) 300 200 100 0 25 50 75 100 125 150 175 200 225 Current (Amps) 250 275 300 325 Art # A-07453 Figure 4-5: Aluminum - AMP to IPM Conversion Thermal Overload The critical components for thermal protection are the rectifier stack and the transformer, which are fitted with thermal overload cut out devices.
FABRICATOR 251 Positive and Negative Welding Current Terminals Refer back to Figure 4-1. Both terminals located at the bottom of the unit are shown without the terminal knob. Both knobs must be firmly secured before attempting to weld. Spool Gun Interface Amphenol Connector The Spool Gun Interface 10 pin connector is used to connect a spool gun to the Fabricator 251 (refer to Figure 4-7 and Table 4-1). Gun Polarity Lead This lead selects the welding voltage polarity of the electrode wire.
FABRICATOR 251 4.02 Weld Mode Selector The Weld Mode Selector switch selects the method of welding mode. DWELL (STITCH) 2 WELD (SPOT / STITCH) WELD MODE SPOT STITCH 2 4T 2T 3 1 4 MIN 3 1 4 MIN t t BURNBACK Art # A-07183 Figure 4-8: Internal Welding Controls SPOT: 2T (Continuous Welding): This mode of welding is used to weld two or more components together with a continuous weld. When the MIG gun trigger switch is depressed welding commences.
FABRICATOR 251 STITCH: Dwell Stitch This mode of welding is used to weld two or more components together with a stitch weld. The WELD (Spot/Stitch) shaft controls the welding or ‘ON’ time and the "DWELL (Stitch)" shaft controls the interval or ‘OFF’ time for stitch welding. (Refer to Figure 4-8 for control). DWELL (STITCH) CONTROL KNOB When the Weld Mode control is in the Stitch position, the Dwell (Stitch) knob controls the length of the non-weld portion of stitch welding.
FABRICATOR 251 4.03 400 Amp Air-Cooled MIG Gun The Valley National Gases air-cooled 43340VNG 400 amp MIG gun fitted to the FABRICATOR 251 offers robust construction, unparalleled reliability and easy replacement of consumable parts. The Air-Cooled MIG Gun has an operating capacity in excess of the capacity of the FABRICATOR and can be expected to give trouble free service.
FABRICATOR 251 4.04 Installing A New Wire Conduit 1. Be sure the MIG gun cable is arranged in a straight line, free from twists, when installing or removing a wire conduit. Remove the old conduit by first removing the MIG gun nozzle, contact tip, insulator and gas diffuser. Then loosen Allen screws in the conductor tube and connector plug and pull the old wire conduit out of the cable assembly from the connector plug end. 2.
FABRICATOR 251 4.05 MIG Gun Maintenance Remove dust and metallic particles from the gun conduit by forcing clean, dry compressed air into the conduit once a week. This will minimize wire feeding problems. 4.06 Basic Welding Technique Setting of the Power Supply The setting of the Fabricator 251 requires some practice by the operator, in that the welding power supply has two control settings that have to balance. These are the Wire Speed Control and the Voltage Control Switches.
FABRICATOR 251 Flux Cored Wire Solid Wire 1/4” (6.4mm) 5/16” (7.9mm) 3/8” .030” (.8mm) .023” (.6mm) (9.5mm) 11/16” (17.5mm) 9/16” (14.3mm) .035” (.9mm) .035” (.9mm) Gas Nozzle Contact Tip Art # A-07186 Distance: ±1/16” .045” (1.
FABRICATOR 251 4.07 Stitch Welding Operation Welding consumable costs can be reduced by replacing a continuous weld bead with the Stitch weld bead. It will also reduce heat distortion in thin plate. Coarse & Fine Voltage Selector Switches and Wire Speed Control Set these controls to obtain the desired welding conditions for the wire and material being welded. Mode Selector Switch Set the WELD MODE switch to STITCH.
FABRICATOR 251 4.09 Gas Selection for Gas Metal Arc Welding Suggested Shielding Gas Metal Type Base Plate Thickness Filler Metal Transfer Mode Carbon Steel Greater than 22 gauge (.030”) ER70S-X Short Circuit 100% CO2 All Position Welding High welding speeds. Good penetration and pool control. Greater than 22 gauge (.030”) ER70S-X Short Circuit 75% Argon 25% CO2 Suitable for high-current and highspeed welding. Greater than 22 gauge (.
FABRICATOR 251 4.10 Welding Setting Selection Guide Material Type Wire Type Shielding Gas and Flow Rate 100% CO2 25cfh Wire Size (Diameter) .035” (0.9mm) .045” (1.2mm) .023” (0.6mm) Solid (or hard) Steel 75% Ar 25% CO2 ,25cfh .030” (0.8mm) .035” (0.9mm) .045” (1.2mm) ER70S-6 .023” (0.6mm) 92% Ar 8% CO2 .030” (0.8mm) .035” (0.9mm) .045” (1.2mm) 100% CO2 25cfh .045” (1.2mm) 1/16” (1.6mm) Flux Core E71T-1 E71T-GS E71T-11 Steel .030” (0.8mm) .035” (0.9mm) None .045” (1.2mm) 1/16” (1.6mm) .
FABRICATOR 251 Coarse Voltage THICKNESS** Coarse Voltage Fine Voltage Step Wire Speed H Fine Voltage 22 ga. (0.8mm) 18 ga. (1.2mm) 16 ga. (1.6mm) 1/8” (3.2mm) M/2 1.5 M/3 M/5 L/6 L/6 1.5 1.5 M/1 M/1 M/1 2.25 2 1.5 M/1 M/3 M/4 L/8 L/8 L/8 2.25 1.25 M/1 M/2 M/1 2.75 1.75 1.25 M/2 M/3 M/4 L/8 M/6 H/1 L/5 1.5 L/6 L/8 M/1 1.5 1.75 3 3 2.5 1.5 4.5 2.5 2.5 1.5 2 1.5 1.75 2 1 M/4 M/7 M/4 M/7 M/5 M/5 M/5 M/6 M/5 M/6 M/7 H/2 M/2 L/8 M/4 M/7 L/8 L/7 4.5 3.25 M/2 L/8 4.
FABRICATOR 251 NOTES 4-16 August 22, 2008
FABRICATOR 251 SECTION 5: MAINTENANCE & TROUBLESHOOTING 5.01 Routine Maintenance & Inspection The only routine maintenance required for the Fabricator 251 is a thorough cleaning and inspection, with the frequency depending on the usage and the operating environment. WARNING Disconnect the Fabricator from the Input power supply voltage before disassembling. Special maintenance is not necessary for the control unit parts in the Power Supply.
FABRICATOR 251 Warning! Disconnect input power before maintaining. Maintain more often if used under severe conditions Each Use Visual check of torch Consumable parts Visual check of regulator and pressure Weekly Visually inspect the torch body and consumables Visually inspect the cables and leads.
FABRICATOR 251 5.02 Basic Troubleshooting The basic level of troubleshooting is that which can be performed without special equipment or knowledge, and without removing the covers from the Power Supply. If major components are faulty, then the Power Supply should be returned to an accredited Valley National Gases Service Agent for repair. 5.03 Solving Problems Beyond the Welding Terminals The general approach to fix GMAW/FCAW problems is to start at the wire spool then work through to the MIG torch.
FABRICATOR 251 WARNING Disengage the drive roll when testing for gas flow by ear. 2. Inconsistent wire feed FAULT CAUSE 1. Wire spool brake is too tight. 2. Wire spool brake is too loose. 3. Worn or incorrect feed roller size. 4. Misalignment of inlet/outlet guides. Inconsistent Wire Feeding 5. Liner blocked with swarf. 6. Incorrect or worn contact tip. 7. Poor work lead contact to work piece. 8. Bent liner. REMEDY a. Feed roller driven by motor in the cabinet will slip. a.
FABRICATOR 251 5.04 Welding Problems FAULT A. Undercut CAUSE 1. Welding arc voltage too high. REMEDY a. Reduce voltage by reducing the voltage selection switch position or increase the wire feed speed. 2. Incorrect torch angle 3. Excessive heat input a. Adjust angle 4. Weld speed too fast B. Lack of penetration 1. Welding current too low a. Increase welding current by increasing wire feed speed and increasing voltage selection switch position. 2. Joint preparation too narrow or gap too tight 3.
FABRICATOR 251 FAULT CAUSE 1. Weld beads are too small 2. Weld penetration narrow and deep A. Weld cracking 3. Excessive weld stresses 4. Excessive voltage 5. Cooling rate too fast 6. Weld speed too fast 1. Faulty rectifier unit B. Cold weld puddle C. Arc does not have a crisp sound that short arc exhibits when the wirefeed speed and voltage are adjusted correctly. 2. Loose welding cable connection. 3. Low Primary Voltage 4. Weld speed too fast 1.
FABRICATOR 251 5.05 Power Supply Problems FAULT A. Indicator light is ON but welding arc can not be established. B. Mains supply voltage is ON. Indicator light is not lit and welding arc can not be established. CAUSE 1. Power On/Standby switch in standby position. 1. Primary fuse is blown. 2. Broken connection in primary circuit. C. Mains indicator light is not lit but welding arc can be established. D.
FABRICATOR 251 NOTES 5-8 August 22, 2008
FABRICATOR 251 APPENDIX 1: FEEDROLL KITS DRIVE ROLL KITS (#375980-Series) 2 ROLL Style 1 Style 2 Flat Double Smooth "V" Flat Knurled Double Smooth "V" Hard Hard .023" / 0.6mm 375980-031 - - - - - .030", .035" / 0.8, 0.9mm 375980-001 375980-003 375980-010 - - - .030", .035", .045" / 0.8, 0.9, 1.2mm 375980-028* 375980-029 - - - - .035" / 0.
FABRICATOR 251 APPENDIX 2: POWER SUPPLY CIRCUIT DIAGRAM • Note the model and part number shown on the equipment nameplate 4 BLUE SW2 COARSE 4A BLUE FABRICATOR 251 8&8A BRN (2) (1) (4) (3) 8 BRN (10) (9) 9 BLK (12) (11) 10 RED 10C RED (6) 11 GRY (24) (23) 12 BRN (18) (17) 16 WHT (22) (21) W1 Input Ter minal Block L1 White 1 10&10A RED T1 K1\3 1D RED [5] 1B RED L2 Black L1 1 RED 9&9A BLK (8) (7) 10B RED [6] 4C BLUE (5) 11&11A GRY K1\2 1C RED [3] [4] 4B BLUE (12) (11) K1
FABRICATOR 251 SWITCH 2 COARSE 1 3 5 7 POSITI ON 4 2 S2 T1 1 2 3 8 6 X X X 9 11 10 12 X X SWITCH 3 FI NE 1 3 5 7 2 8 SWI TCH POSITI ON 1 2 3 4 5 6 7 8 X T2 BR1 4 6 X X X X X X X X X X X X S3 11 13 15 17 19 23 24 X X + Varis tor + C1-C4 VR1 22 VIO 23 GRY C5 4 x 2 2, 000 uF T4 F4 T5 PLUGSOCKET X1/6 X1/5 X1/4 PCB 4 X1/3 DIG METER 30C BRN 704883 31D ORN 5A X1/1 CB2 F3 SHUNT 47 GRY PLUGSOCKET 55 BLK S1 230V TRANS 251US COIL 52 A BRN 53 WHT 45 VIO 49 A BLU
LIMITED WARRANTY August 2008 LIMITED WARRANTY: The Manufacturer, warrants to customers of authorized distributors ("Purchaser") that its products will be free of defects in workmanship or material.
WARRANTY SCHEDULE August 2008 GMAW/FCAW (MIG) WELDING EQUIPMENT WARRANTY PERIOD Fabricator 251 Original Main Power Transformer and Inductor ...............................................................................................5 years Original Main Power Rectifiers, Control P.C. Boards, power switch semi-conductors .....................................3 years All other original circuits and components including, but not limited to, relays, switches, contactors, solenoids, fans, electric motors......
