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IM960-A
March, 2010
RED-D-ARC
LN-25™ PRO EXTREME
For use with machines having Code Numbers: 11391, 11718
OPERATOR'S MANUAL
Red-D-Arc Spec-Built Welding Equipment
This RED-D-ARC welder is built to RED-D-ARC Extreme Duty
design specifications 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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Table of Contents
Related Manuals for Red-D-Arc 11391
Summary of Contents for Red-D-Arc 11391
- Page 1 IM960-A March, 2010 RED-D-ARC LN-25™ PRO EXTREME For use with machines having Code Numbers: 11391, 11718 OPERATOR’S MANUAL Red-D-Arc Spec-Built Welding Equipment This RED-D-ARC welder is built to RED-D-ARC Extreme Duty design specifications 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 SECTION A: with hot engine parts and igniting. Do not spill fuel when filling tank. If fuel is spilled, wipe it up and do not start engine until WARNINGS fumes have been eliminated. 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 SAFETY 5. Toujours porter des lunettes de sécurité dans la zone de PRÉCAUTIONS DE SÛRETÉ soudage. Utiliser des lunettes avec écrans lateraux dans les zones où l’on pique le laitier. Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté...
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Page 7: Table Of Contents
TABLE OF CONTENTS Page –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Installation........................Section A Technical Specifications .......................A-1 Safety Precautions .......................A-2 Location ..........................A-2 High Frequency Protection ....................A-2 Weld cable Sizes ........................A-2 Cable Connections .......................A-3 Shielding Gas Connection ....................A-3 Wire Drive Configuration ......................A-4 Changing The Gun Receiver Bushing ................A-4 Procedure to Install Drive Rolls and Wire Guides ..............A-4 Pressure Arm Adjustment ....................A-5 Loading Spools of Wire ......................A-5... -
Page 8: Installation
14.8 Inches 8.7 Inches 22.2 Inches 36 lbs (376 mm) ( 221 mm) (589 mm) (16 kg) Handle folded down TEMPERATURE RANGE OPERATION: -40°F to 104°F (-40°C to 40°C) STORAGE: -40°F to 185°F (-40°C to 85°C) RED-D-ARC LN-25™ PRO EXTREME... -
Page 9: Safety Precautions
(61 to 76m) CYCLE 4 or 5 40 & 30 ** Tabled values are for operation at ambient temperatures of 104°F(40°C) and below. Applications above 104°F(40°C) may require cables larger than recommended, or cables rated higher than 167°F(75°C). RED-D-ARC LN-25™ PRO EXTREME... -
Page 10: Cable Connections
When the cylinder pressure gage stops moving, open the valve fully. 8. The flow regulator is adjustable. Adjust it to the flow rate recommended for the procedure and process being used before making a weld. RED-D-ARC LN-25™ PRO EXTREME... -
Page 11: Wire Drive Configuration
8. Install the outer wire guide by aligning it with the pins and tightening the knurled thumbscrews. CONNECTOR BLOCK 9. Close the idle arm and engage the idle roll pressure arm. Adjust the pressure appropriately. SOCKET HEAD CAP SCREW LOOSEN TIGHTEN RED-D-ARC LN-25™ PRO EXTREME... -
Page 12: Pressure Arm Adjustment
Loading 10 to 15 lb. (4.5 – 6.8kg) Spools. A K468 spindle adapter is required for loading 2" (51mm) wide spools on 2" (51mm) spindles. Use a K468 spindle adapter for loading 2-1/2" (64mm) wide spools. RED-D-ARC LN-25™ PRO EXTREME... -
Page 13: Power Source To Ln-25™ Pro Extreme Cable Connection Diagrams
Place the power source Remote/Local switch in the WITH DIGITAL METERS Local position. KP1695-XX KP1696-XX Drive Roll Kit Place CV/CC switch in the feeder in the "CV" posi- KP1697-XX tion. See Magnum Literature Welding Gun ® CV power Source K1803-1 Welding Cables RED-D-ARC LN-25™ PRO EXTREME... - Page 14 Place CV/CC switch in the feeder in the "CV" position. K2613-4 LN-25™ PRO EXTREME WITH DIGITAL METERS KP1695-XX KP1696-XX Drive Roll Kit KP1697-XX See Magnum Literature Welding Gun ® CV power Source K1841-XX Welding Cables K852-95 Twist-Mate Cable Plug RED-D-ARC LN-25™ PRO EXTREME...
- Page 15 Place CV/CC switch in the feeder in the "CV" position. Description K2613-4 LN-25™ PRO EXTREME WITH DIGITAL METERS KP1695-XX KP1696-XX Drive Roll Kit KP1697-XX See Magnum Literature Welding Gun ® CV power Source K1841 Welding Cables K852-95 Twist-mate Cable Plug K484 Jumper Plug kit RED-D-ARC LN-25™ PRO EXTREME...
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Page 16: Operation
The available range of the LN-25™ PRO EXTREME wirefeeder may not be suitable for all applications, WARNING OR and the builder/user is and must be solely responsible CAUTION for welding settings. RED-D-ARC LN-25™ PRO EXTREME... -
Page 17: Definition Of Welding Terms
General Functional Description The LN-25™ PRO EXTREME as designed is a sim- ple, robust feeder. Standard features include a cali- brated wire feed speed dial, CV-CC switch, Gas Purge and Cold Feed. RED-D-ARC LN-25™ PRO EXTREME... -
Page 18: Case Front Controls
(mounted on the gun handle) is in Position No. 1, the wire speed feed will be that figure indicated on the display. In Position No. 2, the wire feed speed will be 83% of the figure indicated on the display. RED-D-ARC LN-25™ PRO EXTREME... - Page 19 Measure the actual wire feed speed (example: 405 inches per minute) While in the set-up menu, adjust the calibration factor as follows: Actual WFS =Calibration Factor Example =1.01 Set WFS Press the set-up button to exit the set-up menu. RED-D-ARC LN-25™ PRO EXTREME...
- Page 20 However, this wire feeder may also be used with a constant cur- 100 150 200 250 300 350 400 450 500 550 650 700 rent (CC) power source to obtain passable results for noncritical quality applications. RED-D-ARC LN-25™ PRO EXTREME...
- Page 21 Perform regular maintenance and cleaning on the gun liner, conduit and gun. Always use quality electrode, such as L-50 or L-56 from Lincoln Electric. 6. VOLTAGE DISPLAY (See Item 2 for Details) 7. VOLTAGE LED RED-D-ARC LN-25™ PRO EXTREME...
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Page 22: Internal Controls
OPERATION INTERNAL CONTROLS FIGURE B.2 RED-D-ARC LN-25™ PRO EXTREME... - Page 23 Adjust the speed of cold feed- ing by rotating the WFS knob. Cold feeding, or "cold inching" the electrode is useful for threading the electrode through the gun. RED-D-ARC LN-25™ PRO EXTREME...
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Page 24: Constant Current Wire Welding
Lengthening the contact tip to work distance raises the voltage, short- ening the contact tip to work distance lowers the volt- age. FIGURE B-3 Current Wire Feeder CTWD Constant Current Power Source Current RED-D-ARC LN-25™ PRO EXTREME... -
Page 25: Rear Controls
The Gas Purge switch is useful for setting the proper flow rate of shielding gas. Flow meters should always be adjusted while the shielding gas is flowing. RED-D-ARC LN-25™ PRO EXTREME... -
Page 26: Accessories
IIncludes: Lug to Lug, 3/0 Cable of length "xx" for lengths up to 60' (18.3m). Lug to Lug, Weld Power Cable, Lug to Lug K1842-xx 4/0 Cable of length "xx" for lengths greater than 60' (18.3m). RED-D-ARC LN-25™ PRO EXTREME... - Page 27 Gun Receiver Bushing (for guns Includes: Gun receiver bush- with K613-7 Lincoln gun connec- K1500-3 ing with hose nipple, set screw ® tors; Magnum 550 guns and com- and hex key wrench. patible with Tweco® #5) RED-D-ARC LN-25™ PRO EXTREME...
- Page 28 European and Control cable male connectors for 3/16” ID models only) hose, 2 male connectors for ¼” ID hose, and mounting hard- ware. K283 Wire Feed Speed Meter Includes: A wire feed speed meter with digital display. RED-D-ARC LN-25™ PRO EXTREME...
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Page 29: Maintenance
DC welding power source. The work lead of the LN-25™ PRO EXTREME must be connected to the work terminal of the power source. 3. Connect the reference voltmeter between the brass block of the LN-25™ PRO EXTREME and the work lead. RED-D-ARC LN-25™ PRO EXTREME... - Page 30 6. Measure the motor rpm when the COLD FEED button 9. Turn power OFF. is pressed. 10. Replace the cover and secure with the screws. 7. Verify the rpm is within the acceptable range. FIGURE D.2 FIGURE D.1 COVER MOTOR SHAFT COVER P.C. BOARD RED-D-ARC LN-25™ PRO EXTREME...
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Page 31: Troubleshooting
• Only qualified personnel should perform maintenance work. CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed. RED-D-ARC LN-25™ PRO EXTREME... -
Page 32: Digital Display Models Error Codes
CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed. RED-D-ARC LN-25™ PRO EXTREME... - Page 33 CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed. RED-D-ARC LN-25™ PRO EXTREME...
- Page 34 CAUTION If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Authorized Field Service Facility for technical troubleshooting assistance before you proceed. RED-D-ARC LN-25™ PRO EXTREME...
- Page 35 DIAGRAMS RED-D-ARC LN-25™ PRO EXTREME...
- Page 36 DIMENSION PRINT RED-D-ARC LN-25™ PRO EXTREME...
- Page 37 ● ● ● Do not touch electrically live parts or Keep flammable materials away. Wear eye, ear and body protection. WARNING electrode with skin or wet clothing. ● Insulate yourself from work and ground. Spanish ● ● ● No toque las partes o los electrodos Mantenga el material combustible Protéjase los ojos, los oídos y el AVISO DE...
- Page 38 ● ● ● 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. WARNING remove fumes from breathing zone. ● Spanish Los humos fuera de la zona de res- ●...
- Page 39 • World's Leader in Welding and Cutting Products • • Sales and Service through Subsidiaries and Distributors Worldwide • Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com...
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