Lincoln Electric Lf 72 Users Manual Semiautomatic Wire Feeders
LF-74 to the manual 2e10461d-0b20-4427-8da1-7e7b487ca963
2015-02-09
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SEMIAUTOMATIC WIRE FEEDERS LF-72 and LF-74 Wire Feeders Output 2-Roll or 4-Roll Heavy Duty Industrial Feeders or Designed for MIG and cored wire welding in job shop and manufacturing environments, the rugged LF-72 and LF-74 wire feeders are built to deliver reliable performance day after day. The heart of these feeders is the highly engineered 2-roll or 4-roll MAXTRAC™ wire drive system, delivering strong and consistent feeding force for tough applications. Input 24-42 VAC Select the 2-roll LF-72 for most .035-.045 wire applications. Select the 4-roll LF-74 for large diameter wires, longer gun cables or long boom conduit or hard automation applications. Processes MIG, Pulsed, Flux-Cored 50 60 Hz LF-74 Bench Model, Heavy Duty, Extra Torque, K2426-3 LF-72 Bench Model, Standard Duty, K2327-2 (Shown with optional wire.) Advantage Lincoln • Patented MAXTRAC™ heavy-duty cast aluminum wire drive system provides reliable feeding and durability. • Brass-to-brass gun connections for better electrical conductivity that results in better arc performance. • Totally tool-less drive rolls and wire guide installation. Two or four gear-driven wire drive rolls slide on and off easily! • Calibrated wire feed speed dial for precise and accurate settings. • Rugged, industrial-grade wire feeder motor. • In addition to great mild steel performance, these feeders deliver positive arc starting and feeding with stainless steel, aluminum and flux-cored wires! • Control cable connector with a Spin-Nut™ makes connecting the control cable a simple twist-of-the-wrist. • Totally enclosed wire drive. • Manufactured under a quality system certified ISO 9001 requirements and ISO 14001 environmental standards. • Three-year warranty on parts and labor. TECHNICAL SPECIFICATIONS • (1) Product Name(1) Product Number Input Power Output Capacity Current / Duty Cycle Wire Feed Speed Range ipm (m/min) Wire Size Range in (mm) LF-72 Base Model (with gun) K2327-1 24-42 VAC 50/60 Hz 9 Amps 500 Amps @ 60% 400 Amps@ 100% 50-800 (1.3-20.3) LF-72 Base Model, (no gun, no cable) K2327-4 LF-72 Bench Model, Standard Duty K2327-2 12.6 x 10.9 x 22.5 (320 x 277x 572) 53 (24) LF-72 Bench Model, Heavy Duty K2327-3 15.3 x 13.0 x 27.7 (389 x 330 x 704) 68 (31) LF-74 Base Model K2426-1 11.1 x 10.2 x 12.9 (282 x 259 x 328) 46 (21) LF-74 Bench Model, Heavy Duty K2426-2 15.3 x 13.0 x 27.7 (389 x 330 x 704) 71 (32) LF-74 Bench Model, Heavy Duty, Extra Torque K2426-3 Solid .023-1/16 (0.6-1.6) Cored .030-5/64 (0.8-2.0) Dimensions HxWxD in (mm) Net Weight lbs (kg) 11.1 x 10.2 x 12.9 (282 x 259 x 328) 44 (20) 27 (12) 600 Amps @ 60% 500 Amps@ 100% 100-800 (2.5-20.3) 50-400 (1.3-10.1) .030-5/64 (0.8-2.0) .030-3/32 (0.8-2.4) 71 (32) See selection guide on page 4. Publication E8.11 8/06 www.lincolnelectric.com A CLOSER LOOK PERFORMANCE F F D E A B C G LF-74 Four Roll Drive LF-72 Two Roll Drive A Rigid Cast Aluminum Frame • Enhances precise drive roll alignment B Brass to Brass Interchangeable Gun Bushings • More reliable electrical conductivity – no oxide build-up • More efficient energy transfer – lower voltage drops • Easily adapt any number of Lincoln Magnum or competitive guns C New Patent-Pending Drive Rolls • For steel - new design delivers 20% more feeding force • For aluminum - chrome plated to resist build-up D Twist-Lock Drive Roll Hubs • Two or four gear driven rolls • Fast, tool-less changeovers E Patented Split Wire Guides • Full support for wire throughout the drive path • Removable outer wire guide for easy access • No tools required • No birdnesting F Patent-Pending Dual Spring Pressure Arm • Easy turn numeric tension indicator • Set heavy tension for steel and stainless • Set moderate tension for cored wires • Set soft tension for aluminum • Wide idler arm hinge delivers improved drive roll clamping pressure G Separate Drive Gear • Reduces pressure on motor for extended service life LF-72/LF-74 Wire Feeders [2] www.lincolnelectric.com A CLOSER LOOK FEATURES Front View Heavy Duty hinged door opens upward to provide generous access to wire drive. Convenient storage tray on top for contact tips and drive rolls. Calibrated Wire Feed Speed Dial for precise setting. Convenient 2 Step/Trigger Interlock Switch for operator comfort during long welds. Cold Feed for safety/Gas Purge clears shielding gas line. LF-74 Four Roll Bench Model Shown Rugged MAXTRAC™ wire drive system. Back View Gas Hose Connection Inlet. Control Cable Connector with Spin-Nut™ for fast, easy, tool-less connection. Patented Ball Bearing Inlet Guide for accurate feeding. H A (optional) G B (optional) Key Controls (LF-72 and LF-74) A) B) C) D) E) F) G) H) Calibrated Wire Feed Speed Dial Gun Connection (K1500-2) 5-Pin Gun Connection Motor Thermal Protection Light Cold Feed/Gas Purge Switch 2-Step/Trigger Interlock Switch Burnback/Postflow Timer Kit (optional) Remote Voltage Control Kit (optional) LF-72 shown with optional K2330-1 Postflow and Burnback Timer Kit and K2329-1 Remote Voltage Control Kit. F E D C [3] LF-72/LF-74 Wire Feeders www.lincolnelectric.com SYSTEM SELECTION • WIRE FEEDER SELECTION GUIDE LF-72 LF-74 LF-74 Extra Torque 50-800 (1.3-20.3) 100-800 (2.5-20.3) 50-400 (1.3-10.1) Number of Rolls: Inches Per Minute (m/min): Wire Size, in. (mm): BASE MODEL no gun, no cable For boom mounting or for use with bulk consumables. BASE MODEL For boom mounting or for use with bulk consumables. Solid Cored .023-1/16 (0.6-1.6) .030-5/64 (0.8-2.0) Solid Cored .023-1/16 (0.6-1.6) .030-5/64 (0.8-2.0) Solid Cored .023-1/16 (0.6-1.6) .030-3/32 (0.8-2.4) Unit Includes: • Drive Roll and Wire Guide Kit LF-72 Base Model (no gun, no cable) (K2327-4) Unit Includes: Unit Includes: • Drive Roll and Wire Guide Kit • Gun and Cable Assembly • Control Cable 10' (3m) • Drive Roll and Wire Guide Kit • Control Cable 10' (3m) LF-72 Base Model with gun (K2327-1) LF-74 Base Model (K2426-1) Unit Includes: BENCH MODEL STANDARD DUTY For most welding needs that require a rugged and dependable wire feed system. • Drive Roll and Wire Guide Kit • Gun and Cable Assembly • Control Cable 10' (3m) LF-72 Bench Model, Standard Duty (K2327-2) Shown with optional 10-44 lb. (4.5-19.9 kg) wire spool. BENCH MODEL HEAVY DUTY For applications requiring up to 60 lb. wire packages. Unit Includes: Unit Includes: Unit Includes: • Drive Roll and Wire Guide Kit • Gun and Cable Assembly • Control Cable 10' (3m) • Drive Roll and Wire Guide Kit • Control Cable 10' (3m) • Drive Roll and Wire Guide Kit • Control Cable 10' (3m) LF-72 Bench Model, Heavy Duty (K2327-3) Shown with optional 50-60 lb. (22.6-27.2 kg) coil adapter and wire. LF-74 Bench Model, Heavy Duty (K2426-2) Shown with optional 50-60 lb. (22.6-27.2 kg) coil adapter and wire. (1) Recommended for Flux-Cored Wire Feeding LF-74 Bench Model, Heavy Duty, Extra Torque (K2426-3) Shown with optional 50-60 lb. (22.6-27.2 kg) coil adapter and wire. LF-72 includes FREE: LF-74 includes FREE: .035"-.045" (0.9-1.2mm) Drive Roll and Wire Guide Kit (KP1696-1) .035"/.045" (0.9mm/1.2mm) Drive Rolls and Wire Guides Male 14-pin to Female 14-pin Control Cable 10 ft. (3.0m) (K1797-10) Male 14-pin to Female 14-pin Control Cable 10 ft. (3.0m) (K1797-10) Magnum 400 Gun and 15 ft. (4.5m) Cable Assembly with .035"- .045" (0.9mm-1.2mm) liner (K471-21). LF-72 Base Model without gun also available (K2327-4). (1) K2327-4 includes Drive Roll & Wire Guide Kit Only [4] LF-72/LF-74 Wire Feeders www.lincolnelectric.com OPTIONS DRIVE ROLL & WIRE GUIDE KITS Description LF-72 Two-Roll CONTROL EXTENSION CABLES Cable Type LF-74 Four-Roll Description Wire Feeder Control Extension Cables Steel Wire Sizes (includes stainless steel): .023-.030" (0.6-0.8mm) KP1696-030S .035" (0.9mm) KP1696-035S .045" (1.2mm) KP1696-045S .052" (1.4mm) KP1696-052S .035", .045" (0.9, 1.2mm) KP1696-1(1) .040" (1.0mm) KP1696-2 1/16" (1.6mm) KP1696-1/16S KP1505-030S KP1505-035S KP1505-045S KP1505-052S – – KP1505-1/16S Cored Wire Sizes: .030-.035" (0.8-0.9mm) .040-.045" (1.0-1.2mm) .052" (1.4mm) 1/16" (1.6mm) KP1697-035C KP1697-045C KP1697-052C KP1697-1/16C KP1505-035C KP1505-045C KP1505-052C KP1505-1/16C Steel or Cored Wire Sizes: .068-.072" (1.8mm) 5/64" (2.0mm) 3/32" (2.4mm) KP1697-068 KP1697-5/64 – KP1505-068 KP1505-5/64 KP1505-3/32 Aluminum Wire Sizes: .035" (0.9mm) .040" (1.0mm) 3/64" (1.2mm) 1/16" (1.6mm) KP1695-035A KP1695-040A KP1695-3/64A KP1695-1/16A KP1507-035A KP1507-040A KP1507-3/64A KP1507-1/16A K1797-10 - 10 ft.(1) K1797-25 - 25 ft. K1797-50 - 50 ft. K1797-100 - 100 ft. (1) Male 14-pin to female 14-pin Standard with all LF-72 (except K2327-4) and LF-74 models. WELD POWER CABLE REQUIRED WELD POWER CABLES Order No. Description K1840-10 K1842-10 K1842-35 K1842-60 K1842-110 Twist-Mate™ to Lug, 1/0, 350A, 60% duty cycle, 10 ft. Lug to Lug, 3/0, 600A, 60% duty cycle, 10 ft. Lug to Lug, 3/0, 600A, 60% duty cycle, 35 ft. Lug to Lug, 3/0, 600A, 60% duty cycle, 60 ft. Lug to Lug, 4/0, 600A, 60% duty cycle, 110 ft. (1) Standard on LF-72. FEED PLATE GUN RECEIVER BUSHINGS K1500-1 Gun Receiver Bushing (Optional) • Magnum 200, 300 and 400 gun and cable assemblies with K466-1 connector kit. • Lincoln Innershield gun and cable assembly. • Magnum 550 gun and cable assembly with K613-1 connector kit. K1500-2 Gun Receiver Bushing (Standard) K1500-3 Gun Receiver Bushing (Optional) K1500-4 Gun Receiver Bushing (Optional) • Magnum 200 and 400 fully assembled guns (K497-2x and K471-2x). • Magnum 550 gun and cable assembly with K613-7 connection. • Magnum 200, 300 and 400 gun and cable assemblies with K466-10 connector kit. • Guns with Tweco #5 connectors. • Magnum 200, 300 and 400 gun and cable assemblies with K466-3 connector kit. K1500-5 Gun Receiver Bushing (Optional) • To adapt to OXO guns. K489-7 Fast-Mate Gun Receiver Bushing (Optional) • Magnum gun and cable assemblies with Fast-Mate connections. • Handles both single and dual procedure guns. • Guns with Tweco #2, #3, and #4 connectors. [5] LF-72/LF-74 Wire Feeders www.lincolnelectric.com OPTIONS GENERAL OPTIONS Adapter for Competitive Power Sources Allows wire feeder to connect to select Miller Electric® power sources. Order K2335-1 Magnum Gas-Shielded Gun and Cable Assemblies Available 200-550 amps, aircooled, gas-shielded welding guns. See publication E12.10 Magnum Self-Shielded Gun and Cable Assemblies Available 250-600 amps. See publication E12.110 Control Cable to Terminal Strip Adapter Connects 14-pin control cable to power sources with terminal strip. Order K1798 Postflow and Burnback Timer Kit Provides adjustable delay of power source output shut off to prevent electrode sticking in crater when using high wire feed speeds. Order K2330-1 115V/42V Transformer Kit Provides a way to use the wire feeder on power sources that have 115V AC available on the terminal strip. Order K1520-1 Remote Voltage Control Kit Allows arc voltage to be changed at the feeder. Order K2329-1 Welding Fume Extractors Lincoln offers a wide variety of welding fume extraction environmental system solutions, ranging from portable systems easily wheeled around the shop to shop-wide central systems servicing many dedicated welding stations. Request Publication E13.40 Incoming Bushing for Lincoln Conduit Feed Plate Incoming Bushings connect directly to wire conduit (not included), for use in boom system, long distances, or large payoff packages. Bushings can be used with any wire conduit (K515 or K565). Order K1546-1 for .025-1/16" wire Order K1546-2 for 1/16-1/8" wire ADDITIONAL OPTIONS FOR BASE MODEL (Does not include Wire Reel Stand) Standard Duty Wire Reel Stand For use with Lincoln 10-44 lb. (4.5-20 kg) wire packages that use a 2" (51mm) spindle. Order K2328-1 Spindle Adapter for Readi-Reels® and Spools For fixture and other custom installations. Features 2" (51mm) O.D. spindle for mounting ReadiReels and 2" (51mm) I.D. spools up to 60 lb. (27.2 kg) capacity. Order K162-1 Heavy Duty Wire Reel Stand For use with Lincoln 10-60 lb. (4.5-27.2 kg) wire packages that use a 2" (51mm) spindle. Hole in stand fits over lift bail. Order K1524-3 Deluxe Adjustable Gas Regulator & Hose Kit Accommodates CO2, Argon, or Argon-blend gas cylinders. Includes a cylinder pressure gauge, dual scale flow gauge and 4.3 ft. (1.3m) gas hose. Order K586-1 6000 Series Welding Arm Create a safe, uncluttered work environment where floor space is used effectively with a Lincoln Series 6000 Welding Arm. Glide the arm effortlessly into position when in use or swing it conveniently against a wall or beam for safe, out-of-the-way storage. An 18" x 18" (457 x 457mm) footprint ties up very little floor space. Order K1778-1 Gas Guard Regulator For CO2 and Argon blend gases. Reduces surge caused by excess pressure in supply hose. Includes adjustable flow regulator with removable adjuster key. Order K659-1 • • Harris Argon Flowmeter/ Regulator and Hose Kit Order 3100211 [6] LF-72/LF-74 Wire Feeders www.lincolnelectric.com OPTIONS ADDITIONAL OPTIONS FOR FEEDERS EQUIPPED WITH STANDARD DUTY WIRE REEL STAND Swivel Platform Mounts to the lift bail on the power source and bottom of the Heavy Duty Wire Reel stand. Wire feeder may be lifted off if needed. Compatible with Light Duty Caster Kit. Includes “lazy susan” parts tray. Order K1557-1 Lift Bail Kit Allows the entire wire feeder to be hung from a crane or hook. Use with Standard Duty Wire Reel Stand. Order K2331-1 Lightweight Swivel Kit Allows wire feeder to freely turn. For use with Standard Duty Wire Reel Stand. Order K2332-1 Undercarriage Includes mounting frame, front casters, rear wheels and handle for hand towing. For use with Wire Reel Stands. Order K163 Undercarriage Includes mounting frame, front casters, rear wheels and handle for hand towing. For use with Wire Reel Stands. Order K163 14 lb. Innershield® Coil Adapter Permits 14 lb. (6 kg) Innershield electrode coils to be mounted on 2" (51mm) O.D. spindles. Order K435 8" O.D. Spool Adapter Permits 8" (200mm) O.D. spools to be mounted on 2" (51mm) O.D. spindles. Order K468 14 lb. Innershield® Coil Adapter Permits 14 lb. (6 kg) Innershield electrode coils to be mounted on 2" (51mm) O.D. spindles. Order K435 Wire Reel Cover Kit Plastic enclosure for up to 44 lb. (20 kg) wire packages. Order K1634-1 8" O.D. Spool Adapter Permits 8" (200mm) O.D. spools to be mounted on 2" (51mm) O.D. spindles. Order K468 50-60 lb. Readi-Reel® Adapter Adapts 60 lb. (27.2 kg) coils of Lincoln electrode to 2" (51mm) spindle. Order K438 Wire Reel Cover Kit Plastic enclosure for up to 44 lb. (20 kg) wire packages. Order K1634-1 50-60 lb. Coil Adapter Adapts 50-60 lb. (22.6-27.2 kg) coils of Lincoln electrode to 2" (51mm) spindle. Order K1504-1 ADDITIONAL OPTIONS FOR FEEDERS EQUIPPED WITH HEAVY DUTY WIRE REEL STAND Plastic Wire Cover Kit Plastic enclosure for up to 60 lb. (27.2 kg) wire packages. Order K1634-2 Insulated Lift Bail Allows the entire wire feeder to be hung from a crane or hook. Use with Heavy Duty Wire Reel Stand. Order K1555-1 Caster Kit — Light Duty Mounts to the Heavy Duty Wire Reel Stand. Allows for easy movement of wire feeder. Order K1556-1 NOTE: Miller Electric® is not a trademark of The Lincoln Electric Company. [7] LF-72/LF-74 Wire Feeders www.lincolnelectric.com LF-72 AND LF-74 WIRE FEEDERS ORDER FORM PRODUCT DESCRIPTION LF-72 LF-72 LF-72 LF-72 LF-74 LF-74 LF-74 WIRE WIRE WIRE WIRE WIRE WIRE WIRE FEEDER, FEEDER, FEEDER, FEEDER, FEEDER, FEEDER, FEEDER, ORDER NUMBER BASE MODEL, WITH GUN BASE MODEL, NO GUN, NO CABLE BENCH MODEL, STANDARD DUTY BENCH MODEL, HEAVY DUTY BASE MODEL BENCH MODEL, HEAVY DUTY BENCH MODEL, HEAVY DUTY, EXTRA TORQUE UNIT REQUIRES Weld Power Cable Magnum Gas-Shielded Gun and Cable Assemblies Magnum Self-Shielded Gun and Cable Assemblies QUANTITY PRICE K2327-1 K2327-4 K2327-2 K2327-3 K2426-1 K2426-2 K2426-3 See page 5 See publication E12.10 See publication E12.110 GENERAL OPTIONS Postflow and Burnback Timer Kit Remote Voltage Control Kit Incoming Bushing for Lincoln Conduit: for .025-1/16" wire for 1/16-1/8" wire Spindle Adapter Deluxe Adjustable Gas Regulator & Hose Kit Gas Guard Regulator Harris Argon Flowmeter/Regulator & Hose Kit Adapter for Competitive Power Sources Control Cable to Terminal Strip Adapter 115V/42V Transformer Kit Welding Fume Extractors K1546-1 K1546-2 K162-1 K586-1 K659-1 3100211 K2335-1 K1798 K1520-1 See publication E13.40 ADDITIONAL OPTIONS FOR BASE MODEL (Does Not Include Wire Reel Stand) Standard Duty Wire Reel Stand Heavy Duty Wire Reel Stand 6000 Series Welding Arm K2328-1 K1524-3 K1778-1 ADDITIONAL OPTIONS FOR FEEDERS EQUIPPED WITH STANDARD DUTY WIRE REEL STAND Lift Bail Kit Lightweight Swivel Kit Undercarriage 14 lb. Innershield® Coils Adapter 8" O.D. Spool Adapter Wire Reel Cover Kit (for up to 44 lb. wire packages) K2331-1 K2332-1 K163 K435 K468 K1634-1 ADDITIONAL OPTIONS FOR FEEDERS EQUIPPED WITH UNIVERSAL WIRE REEL STAND Insulated Lift Bail Caster Kit – Light Duty Swivel Platform Undercarriage 14 lb. Innershield® Coils Adapter 8" O.D. Spool Adapter Wire Reel Cover Kit (for up to 44 lb. wire packages) 50-60 lb. Readi-Reel® Adapter 50-60 lb.Coil Adapter Plastic Wire Cover Kit (for up to 60 lb. wire packages) K1555-1 K1556-1 K1557-1 K163 K435 K468 K1634-1 K438 K1504-1 K1634-2 K2330-1 K2329-1 POWER SOURCE OPTIONS CV-305, CV400-I, CV-400, CV500-I, CV-655, Invertec® V350-PRO, Invertec® V450-PRO, DC-400, DC-600, DC-655 See publications E4.22, E4.20.1, E4.30, E4.30.1,E4.40, E5.91, E5.94, E5.20, E5.40, E5.46 TOTAL: C U S T O M E R A S S I S TA N C E P O L I C Y 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. We respond to our customers based on the best information in our possession at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such information or advice. We expressly disclaim any warranty of any kind, including any warranty of fitness for any customer’s particular purpose, with respect to such information or advice. As a matter of practical consideration, we also cannot assume any responsibility for updating or correcting any such information or advice once it has been given, nor does the provision of information or advice create, expand or alter any warranty with respect to the sale of our products. Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the control of, and remains the sole responsibility of the customer. Many variables beyond the control of Lincoln Electric affect the results obtained in applying these types of fabrication methods and service requirements. Subject to Change – This information is accurate to the best of our knowledge at the time of printing. Please refer to www.lincolnelectric.com for any updated information. T H E L I N C O L N E L E C T R I C C O M PA N Y 22801 St. Clair Ave., Cleveland, OH 44117-1199 • 216.481.8100 • www.lincolnelectric.com
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File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.3 Linearized : No XMP Toolkit : 3.1-702 About : uuid:7deac013-329f-11db-8349-000393d5907e Producer : ApogeeX 2.5 Normalizer Keywords : "wire feeder, wire feeders, MIG welding, pulsed, STT, flux-cored welding, MAXTRAC, wire drive, industrial feeders, 2-roll, 4-roll" Modify Date : 2006:09:01 11:40:14-04:00 Create Date : 2006:08:16 15:04:48-04:00 Creator Tool : QuarkXPress: pictwpstops filter 1.0 Metadata Date : 2006:09:01 11:40:14-04:00 Document ID : uuid:71dca32f-329f-11db-8349-000393d5907e Instance ID : uuid:13fdf0c5-3716-4197-b071-842733535173 Format : application/pdf Title : Semiautomatic Wire Feeders: LF-72 and LF-74 Description : Designed for MIG and cored wire welding in job shop and manufacturing environments, the rugged LF-72 (2-roll) and LF-74 (4-roll) wire feeders are built to deliver reliable performance day after day. Subject : wire feeder, wire feeders, MIG welding, pulsed, STT, flux-cored welding, MAXTRAC, wire drive, industrial feeders, 2-roll, 4-roll Page Count : 8 Creator : QuarkXPress: pictwpstops filter 1.0 Warning : [Minor] Ignored duplicate Info dictionaryEXIF Metadata provided by EXIF.tools