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Red-D-Arc Welderentals DX350 Operator's Manual

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IM10468-C
RED-D-ARC
Oct 2021
DX350
For use with machines having Code Numbers: 12801, 12939, 13151, 13227
OPERATOR'S MANUAL
Red-D-Arc Spec-Built Welding Equipment
This RED-D-ARC welder is built to RED-D-ARC Extreme Duty
design speci cations by Lincoln Electric.
Safety Depends on You
This welder 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 INSTALL, OPERATE OR REPAIR THIS EQUIPMENT
WITHOUT READING THIS MANUAL AND THE SAFETY
PRECAUTIONS CONTAINED THROUGHOUT.
And, most importantly, think before you act and be careful.
1-800-245-3660
North America's Largest Fleet of Welding Equipment

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  • Page 1 IM10468-C RED-D-ARC Oct 2021 DX350 For use with machines having Code Numbers: 12801, 12939, 13151, 13227 OPERATOR’S MANUAL Red-D-Arc Spec-Built Welding Equipment This RED-D-ARC welder is built to RED-D-ARC Extreme Duty design speci cations by Lincoln Electric. Safety Depends on You This welder is designed and built with safety in mind.
  • Page 2 THANK YOU FOR SELECTING A QUALITY PRODUCT BY KEEP YOUR HEAD OUT OF THE FUMES. DON’T get too close to the arc. LINCOLN ELEC TRIC. Use corrective lenses if necessary to stay a reasonable distance away from the arc. READ and obey the Safety Data PLEASE EXAMINE CARTON AND EQUIPMENT FOR Sheet (SDS) and the warning label DAMAGE IMMEDIATELY...
  • Page 3 SAFETY with hot engine parts and igniting. Do not spill fuel when lling SECTION A: tank. If fuel is spilled, wipe it up and do not start engine until fumes have been eliminated. WARNINGS 1.d. Keep all equipment safety guards, covers and devices in position and in good repair.
  • Page 4 SAFETY ELECTRIC SHOCK ARC RAYS CAN BURN. CAN KILL. 3.a. The electrode and work (or ground) circuits are 4.a. Use a shield with the proper filter and cover plates to protect your electrically “hot” when the welder is on. Do eyes from sparks and the rays of the arc when welding or not touch these “hot”...
  • Page 5 SAFETY WELDING AND CUTTING CYLINDER MAY EXPLODE IF SPARKS CAN CAUSE DAMAGED. FIRE OR EXPLOSION. 7.a. Use only compressed gas cylinders containing the correct shielding gas for the process used 6.a. Remove fire hazards from the welding area. If and properly operating regulators designed for this is not possible, cover them to prevent the welding sparks the gas and pressure used.

  • Page 6: Table Of Contents

    TABLE OF CONTENTS Page Installation ..............................Section A Technical Specifications..........................A-1 Safety Precautions...........................A-2 VRD (Voltage Reduction Device) ......................A-2 Location and Ventilation........................A-2 Stacking ...............................A-2 Angle of Operation ..........................A-2 Lifting..............................A-3 High Altitude Operation .........................A-3 High Temperature Operation .........................A-3 Cold Weather Operation ...........................A-3 Towing..............................A-3 Vehicle Mounting ..........................A-3 Pre-Operation Engine Service ........................A-4 Oil ................................A-4 Fuel ..............................A-4...
  • Page 7 TABLE OF CONTENTS Page Maintenance ..........................Section D Safety Precautions........................D-1 Routine Maintenance ........................D-1 Engine Service Items ........................D-1 Engine Oil Change ......................D-1, D-2 Engine Oil Filter Change .......................D-2 Air Cleaner ...........................D-2 Service Instructions And Installation Tips for Engine Air Filter..........D-3 Cooling System..........................D-4 Fan Belt ..........................D-4 Fuel .............................D-4 Bleeding the Fuel System.....................D-4...
  • Page 8 RED-D-ARC DX350 GENERAL DESCRIPTION General Description The Red-D-Arc DX350 is a diesel engine powered DC multi- process welding power source and 120 / 240 volt AC power generator. The engine drives a generator that supplies three phase power for the DC welding circuit, single phase and Three Phase power for the AC auxiliary outlets.

  • Page 9: Installation

    RED-D-ARC DX350 INSTALLATION TECHNICAL SPECIFICATIONS reD-D-arc DX350 (K3587-1) INPUT - DIESEL ENGINE ENGINE LUBRICATION EPA EMISSION Description Full Pressure K3587-1 Tier 4 Final with Full Flow Filter 4 Cylinder naturally FUEL SYSTEM GOVERNOR aspirated Mechanical Fuel Pump, Auto air bleed system...

  • Page 10: Safety Precautions

    Stop engine before servicing. stacKinG • Keep away from moving parts. Red-D-Arc DX350 machines cannot be stacked. See additional warning information at front of anGle oF operation this operator’s manual. Engines are designed to run in the level condition which is where Only qualified personnel should install, use, or the optimum performance is achieved.

  • Page 11: Lifting

    INSTALLATION liFtinG towinG The Red-D-Arc DX350 weighs approximately 1290 lbs. (585kg.) Use a recommended trailer for use with this equipment for road, with a full tank of fuel (1135 lbs. (515kg.) (with protective frame) in-plant and yard towing by a vehicle(1). If the user adapts a non- less fuel).

  • Page 12: Pre-Operation Engine Service

    Use caution as the electrolyte is a strong acid that can burn skin and damage eyes. The Red-D-Arc DX350 is shipped with the negative battery cable disconnected. Make certain that the RUN-STOP switch is in the STOP position. Remove the two screws from the battery tray using The Red-D-Arc DX350 is shipped with the engine crankcase lled a screwdriver or a 3/8"...

  • Page 13: Remote Control

    In general, if the machine is to be grounded, it should be connected with a #8 or larger copper wire to a solid earth ground The Red-D-Arc DX350 is equipped with a 3-pin and a 14-pin such as a metal water pipe going into the ground for at least ten connector.

  • Page 14: Cable Installation

    GFCI. VAC auxiliary is 50 amperes. Loading above the rated output The auxiliary power of the Red-D-Arc DX350 consists of two 20 will reduce output voltage below the allowable - 10% of rated Amp-120 VAC (5-20R) duplex receptacles with GFCI protection,...
  • Page 15 RED-D-ARC DX350 INSTALLATION connection oF reD-D-arc DX350 to preMises wirinG 240 VOLT GROUNDED CONDUCTOR POWER 240 Volt 120 VOLT 60 Hz. COMPANY 3-Wire 120 VOLT Service METER NEUTRAL LOAD DOUBLE POLE DOUBLE THROW SWITCH RATING TO BE THE SAME AS OR GREATER THAN PREMISES SERVICE OVERCURRENT PROTECTION.

  • Page 16: Connection Of Lincoln Electric Wire Feeders

    CONNECTION OF ACROSS THE ARC WIRE FEEDERS Set Mode to CV-Wire TO THE DX350 These connections instructions apply to both the LN-25 Pro and Activ8 models. The feeders have an internal contactor and the electrode is not energized until the gun trigger is closed. When the gun trigger is closed the wire will begin to feed and the welding process is started.

  • Page 17: Safety Precautions

    RED-D-ARC DX350 OPERATION OPERATION aDD FUel SAFETY PRECAUTIONS WARNING WARNING DIESEL FUEL can cause fire. • Stop engine while fueling. Do not attempt to use this equipment until you have thoroughly read the engine manufacturer’s manual supplied • Do not smoke when fueling.
  • Page 18 RED-D-ARC DX350 OPERATION welDinG controls (FiGUre B.1) FIGURE B.1 2. DIGITAL OUTPUT METERS-The digital meters allow the 1. OUTPUT CONTROL- The OUTPUT dial is used to preset the output voltage (CV-WIRE mode) or current (CC-STICK,DOWN output voltage or current as displayed on the digital meters for HILL PIPE and TIG modes) to be set prior to welding using the the five welding modes.
  • Page 19 11. VRD (Voltage Reduction Device) INDICATOR LIGHTS- On the WIRE, CC-STICK and DOWNHILL PIPE modes, and has front panel of the DX350 are two indicator lights. A red light different functions in these modes. This control is not active in when lit indicates OCV(Open Circuit Voltage) is equal to or the TIG mode.

  • Page 20: Engine Controls

    RED-D-ARC DX350 OPERATION ENGINE CONTROLS: 20. COOLANT TEMPERATURE GAUGE-A indicator of engine coolant 12. RUN/STOP SWITCH - RUN position energizes the engine prior temperature. to starting. STOP position stops the engine. The oil pressure interlock switch prevents battery drain if the switch is left in 21.

  • Page 21: Starting The Engine

    RED-D-ARC DX350 OPERATION STARTING THE ENGINE 1. Remove all plugs connected to the AC power receptacles. 2. Unlock and turn Battery Disconnect Lockout Switch (Item 24). 3. Set IDLER switch to AUTO. 4. Press Glow Plug Button and hold 15 to 20 seconds.

  • Page 22: Stopping The Engine

    Lincoln publication. Some electrodes form a cone at the end of the electrode after the The Red-D-Arc DX350 can be used with a broad range of DC stick welding arc has been broken, particularly iron powder and low electrodes. The MODE switch provides two stick welding settings hydrogen electrodes.

  • Page 23: Downhill Pipe (Stick) Welding

    The ARC CONTROL dial sets the short circuit current (arc-force) The Red-D-Arc DX350 can be used in a wide variety of DC TIG during stick welding to adjust for a soft or more forceful digging welding applications. In general the ‘Touch Start’ feature allows arc (crisp).

  • Page 24: Wire Welding-Cv

    INSTALLATION INSTRUCTIONS Section. performance. The Red-D-Arc DX350 in the CV-WIRE mode, permits it to be used with a broad range of flux cored wire (Innershield and Outershield) NOTE: With the VRD switch in the “ON” position there is no output electrodes and solid wires for MIG welding (gas metal arc in the Arc Gouging Mode.

  • Page 25: Accessories

    RED-D-ARC DX350 ACCESSORIES ACCESSORIES WIRE FEEDER OPTIONS FIELD INSTALLED OPTIONS / ACCESSORIES K2613-1 LN-25 PRO Portable Wire Feeder-The MAXTRAC® wire K2641-2 Four Wheeled Steerable Yard Trailer - For in plant and drive enhances performance, while the replacement case, yard towing. Comes standard with a Duo-Hitch™, a 2” Ball and many other upgrade options that can be installed in less and Lunette Eye combination Hitch.

  • Page 26: Maintenance

    RED-D-ARC DX350 MAINTENANCE MAINTENANCE Safety Precautions • Have qualified personnel do all maintenance and troubleshooting work. • Turn the engine off before working inside the machine or servicing the engine. • Remove guards only when necessary to perform maintenance and replace them when the maintenance requiring their removal is complete.

  • Page 27: Routine Maintenance

    RED-D-ARC DX350 MAINTENANCE Oil Filter Change roUtine Maintenance • Drain the oil. At the end of each day’s use, refill the fuel tank to minimize • Remove the oil filter with an oil filter wrench and drain the oil moisture condensation in the tank. Running out of fuel tends to into a suitable container.
  • Page 28 RED-D-ARC DX350 MAINTENANCE Service Instructions Service Instructions Single- and Two-Stage Engine Air Cleaners Single- and Two-Stage Engine Air Cleaners Inspect the New Filter for Damage Inspect the New Filter for Damage Remove the Filter Remove the Filter Inspect the new filter carefully, paying attention to...

  • Page 29: Cooling System

    RED-D-ARC DX350 MAINTENANCE BleeDinG tHe FUel sYsteM coolinG sYsteM WARNING You may need to bleed air from the fuel system if the fuel filter or fuel lines have been detached, the fuel tank has been ran empty or after periods of long storage. It is HOT COOLANT can burn skin.

  • Page 30: Fuel Filter

    Improper BatterY Maintenance polarity can damage the charging circuit. The Red-D-Arc DX350 positive (+) battery terminal has a red terminal cover. To access the battery, remove the battery tray from the front of the machine with 3/8”...

  • Page 31: Welder / Generator Maintenance

    RED-D-ARC DX350 MAINTENANCE FIGURE D.2 welDer / Generator Maintenance Green Light STORAGE: Store 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.
  • Page 32 MAINTENANCE RED-D-ARC DX350 (CODE 13151) GFCI MAINTENANCE WARNING • An electric shock can result in serious injury or death. • Always perform the GFCI test before using the generator. If the GFCI system fails the test, the machine must be repaired by an authorized service center.

  • Page 33: Troubleshooting

    RED-D-ARC DX350 TROUBLE SHOOTING TROUBLESHOOTING How to Use troUBlesHootinG GUiDe WARNING Service and Repair should only be performed by Lincoln Electric Factory Trained Personnel. Unauthorized repairs performed on this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty.
  • Page 34 RED-D-ARC DX350 TROUBLE SHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE RECOMMENDED (SYMPTOMS) CAUSE COURSE OF ACTION Major Physical or Electrical Damage is 1. Contact your local Lincoln Authorized Evident. Field Service Facility. Engine will not "crank".
  • Page 35 RED-D-ARC DX350 TROUBLE SHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE RECOMMENDED (SYMPTOMS) CAUSE COURSE OF ACTION Engine shuts down while under a load. 1. High radiator coolant temperature. Reduce load if it is exceeding machine rating. Add coolant to system if low.
  • Page 36 RED-D-ARC DX350 TROUBLE SHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE RECOMMENDED (SYMPTOMS) CAUSE COURSE OF ACTION Engine will not go to high idle when using 1. Auxiliary power load is less than 100 auxiliary power. watts. Idler may not respond with less than a 100 watt load.
  • Page 37 RED-D-ARC DX350 TROUBLE SHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE RECOMMENDED (SYMPTOMS) CAUSE COURSE OF ACTION Engine does not develop full power. Low 1. Fuel filter dirty/clogged. Replace. weld and auxiliary output. Engine runs 2. Air filter dirty/clogged. Replace Air Filter rough.
  • Page 38 RED-D-ARC DX350 TROUBLE SHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS POSSIBLE RECOMMENDED (SYMPTOMS) CAUSE COURSE OF ACTION No auxiliary power. 1. Open circuit breakers. Reset breakers. If breakers keep tripping reduce power draw. 2. GFCI may have tripped. Follow “GFCI Testing and Resetting Procedure”...
  • Page 39 RED-D-ARC DX350 DIAGRAMS...
  • Page 40 RED-D-ARC DX350 DIAGRAMS...
  • Page 41 RED-D-ARC DX350 DIAGRAMS...
  • Page 42 RED-D-ARC DX350 DIAGRAMS...
  • Page 43 RED-D-ARC DX350 CONNECTION DIAGRAMS...
  • Page 44 RED-D-ARC DX350 CONNECTION DIAGRAMS...
  • Page 45 RED-D-ARC DX350 CONNECTION DIAGRAMS...
  • Page 46 RED-D-ARC DX350 DIAGRAMS...
  • Page 50 WARNING Do not touch electrically live parts or Keep flammable materials away. Wear eye, ear and body protection. electrode with skin or wet clothing. Insulate yourself from work and AVISO DE ground. Spanish PRECAuCION No toque las partes o los electrodos Mantenga el material combustible Protéjase los ojos, los oídos y el bajo carga con la piel o ropa moja-...
  • Page 51 WARNING Keep your head out of fumes. Turn power off before servicing. Do not operate with panel open or Use ventilation or exhaust to guards off. remove fumes from breathing zone. AVISO DE Spanish PRECAuCION Los humos fuera de la zona de res- Desconectar el cable de ali- No operar con panel abierto o piración.
  • Page 52 cUstoMer assistance policY The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. Our challenge is to meet the needs of our customers and to exceed their expectations. On occasion, purchasers may ask Lincoln Electric for advice or information about their use of our products.

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