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LN-35 CV/CC
IM812-A
SEMIAUTOMATIC WIRE FEEDER
January, 2005
11029, 11250
For use with machines having Code Numbers:
RETURN TO MAIN MENU
Safety Depends on You
Lincoln arc welding and cutting
equipment is designed and built
with safety in mind. However, your
overall safety can be increased by
proper installation ... and thought-
ful 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.
OPERATOR'S MANUAL
Copyright © 2005 Lincoln Global Inc.
• 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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Related Manuals for Lincoln Electric IM812-A
Summary of Contents for Lincoln Electric IM812-A
- Page 1 LN-35 CV/CC IM812-A SEMIAUTOMATIC WIRE FEEDER January, 2005 11029, 11250 For use with machines having Code Numbers: RETURN TO MAIN MENU Safety Depends on You Lincoln arc welding and cutting equipment is designed and built with safety in mind. However, your overall safety can be increased by proper installation ...
- Page 2 351040, Miami, Florida 33135 or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is available from the Lincoln Electric Company, 22801 St. Clair Avenue, Cleveland, Ohio 44117-1199. BE SURE THAT ALL INSTALLATION, OPERATION, MAINTENANCE AND REPAIR PROCEDURES ARE PERFORMED ONLY BY QUALIFIED INDIVIDUALS.
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Page 3: Electric Shock Can Kill
ELECTRIC SHOCK can kill. 3.a. The electrode and work (or ground) circuits are electrically “hot” when the welder is on. Do not touch these “hot” parts with your bare skin or wet clothing. Wear dry, hole-free gloves to insulate hands. - Page 4 WELDING SPARKS can cause fire or explosion. 6.a. Remove fire hazards from the welding area. If this is not possible, cover them to prevent the welding sparks from starting a fire. Remember that welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas.
- Page 5 PRÉCAUTIONS DE SÛRETÉ Pour votre propre protection lire et observer toutes les instructions et les précautions de sûreté specifiques qui parraissent dans ce manuel aussi bien que les précautions de sûreté générales suiv- antes: Sûreté Pour Soudage A L’Arc 1. Protegez-vous contre la secousse électrique: a.
- Page 6 The code number is especially important when identifying the correct replacement parts. - Register your machine with Lincoln Electric either via fax or over the Internet. • For faxing: Complete the form on the back of the warranty statement included in the literature packet accompanying this machine and fax the form per the instructions printed on it.
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Page 7: Table Of Contents
INSTALLATION SECTION ...A Technical Specifications...A-1 Safety Precautions ...A-2 Power Source Connections ...A-2 Gun Cable Connection to Feeder ...A-3 Weld Cable Connection...A-4 Electrode Cable Connection ...A-4 Work Cable Connection ...A-4 Drive Roll Installation ...A-4 ______________________________________________________________________________________ OPERATION ...SECTION B Safety Precautions ...B-1 General Description...B-1 Recommended Processes and Equipment ...B-1 Welding Capability ...B-1... -
Page 8: Technical Specifications
TECHNICAL SPECIFICATIONS – LN-35 (K2281-1) Constant Voltage (CV) Constant Current (CC) Rated current 50 – 500 Inches Per Minute (IPM) (1270-12700 mm/Min.) RECOMMENDED ELECTRODE WIRE SIZES 7/64 Inches (2.78 mm) HEIGHT 27 Inches (686 mm) OPERATION: - 40 STORAGE: - 40 INSTALLATION VOLTAGE OPERATING ARC VOLTAGE... -
Page 9: Safety Precautions
SAFETY PRECAUTIONS WARNING The electrode circuit (including welding wire, wire drive and welding gun) is electrically hot when the welding power source is on. The gun trigger controls wire feed only. Disconnect or shut off welding power source before making connections or installations to the LN-35. The LN-35 should be positioned upright on a horizontal surface. -
Page 10: Gun Cable Connection To Feeder
Set ELECTRODE POLARITY switch to constant voltage polarity required by electrode. d. Set toggle switch to “Constant Voltage” and set the Constant Voltage Control on welder and the portable field control on #5 for initial start. SA-200, —250 OR SAE-300, —400 (WITH CV ADAPTER) a. -
Page 11: Weld Cable Connection
WELD CABLE CONNECTION The size of the electrode cable and work cable must be sufficient for the maximum weld current and total cable length to be used. Refer to table A.1. TABLE A.1 Total Cable Length Weld Current 60% Duty Cycle 50’-100’... -
Page 12: Operation
SAFETY PRECAUTIONS READ AND UNDERSTAND ENTIRE SECTION BEFORE OPERATING MACHINE WARNING ELECTRIC SHOCK can kill. • Do not touch electrically live part or electrode with skin or wet clothing. • Insulate yourself from work and ground. • Always wear dry insulat- ing gloves. -
Page 13: Work Clip Lead
WORK CLIP LEAD WARNING ELECTRIC SHOCK can kill. • Do not touch metal por- tions of the LN-35 lead clip when welding source is on. WARNING IMPORTANT SAFETY NOTE: To avoid possible electrical shock, do not touch the metal portions of the LN-35 work lead clamp if the power source output is on. -
Page 14: Loading Wire Drive
This is an approximate setting. The optimum idle roll setting can be determined as follows: 1. Press end of gun against a solid object that is electrically isolated from the welder output. Press TIE WIRE the gun trigger for several seconds. SPRING 2. -
Page 15: Presetting Wire Feed Speed
PRESETTING WIRE FEED SPEED The LN-35 permits accurate presetting of the desired wire feed speed, before welding, in both CV and CC wire feed modes. SETTING CONSTANT WIRE FEED SPEED (CV MODE) a. Set Wire Feed Mode switch to CV position. b. -
Page 16: Making A Weld
Arc Volts Used Desired In/Min 131 117 105 153 136 123 111 102 175 156 140 127 117 108 100 197 175 158 143 131 121 113 105 219 194 175 159 146 135 125 117 109 103 241 214 193 175 160 148 138 128 120 113 263 233 210 191 175 162 150 140 131 124 284 253 228 207 190 175 163 152 142 134 306 272 245 223 204 188 175 163 153 144... -
Page 17: Procedure At End Of Coil
• Keep cylinder away from areas where it may be damaged. • Never lift welder with cylinder attached • Never allow welding electrode to touch cylin- der. • Keep cylinder away from welding or other live electrical circuits. -
Page 18: Automatic Protection Shutdown
CC (formerly VV) power sources, on the other hand, permit the arc voltage to decrease with increases in welding current. The output characteristics of these power sources can range from a “drooping slope,” which provide minor arc voltage changes with weld current variations, to “steep slope”... -
Page 19: Maintenance
SAFETY PRECAUTIONS WARNING Have qualified personnel do the maintenance work. Turn the engine off before working inside the machine. In some cases, it may be necessary to remove safety guards to perform required maintenance. Remove guards only when necessary and replace them when the maintenance requiring their removal is complete. -
Page 20: Adjusting Speed Sensor Module
ADJUSTING SPEED SENSOR MODULE The LN-35 Speed Sensor Module is a three lead Hall Effect switch device encased in an externally threaded housing which is screwed into a mounting plate on the motor side of the wire drive gearbox. Proper positioning of this module is critical to proper operation of the LN-35 wire feed speed control. -
Page 21: How To Use The Troubleshooting Guide
HOW TO USE TROUBLESHOOTING GUIDE 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. For your safety and to avoid Electrical Shock, please observe all safety notes and precautions detailed throughout this manual. - Page 22 Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) No wire feed when gun trigger is pulled. Wire feeds for a short time but stops feeding. When gun trigger is released and retriggered wire feeding starts but stops again. Wire feeds OK, but stubs or stops while welding.
- Page 23 Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) Variable or “hunting” arc. Weld porosity, narrow and ropey bead, or electrode stubbing into plate when welding. Motor feeds but there is no wire feed speed control. If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
- Page 24 DIAGRAMS BLUE BLACK BLACK WHITE WHITE BLACK BLACK BLUE LN-35 BLACK WHITE...
- Page 25 NOTES LN-35...
- Page 26 ● WARNING ● Spanish ● AVISO DE PRECAUCION ● French ● ATTENTION ● ● German WARNUNG ● Portuguese ● ATENÇÃO ● Japanese Chinese Korean Arabic ● ● ● ● ● ● ● ● ● ●...
- Page 27 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Spanish ● PRECAUCION French ● ATTENTION ● German WARNUNG Portuguese ● ● Japanese Chinese Korean Arabic WARNING AVISO DE ATENÇÃO...
- Page 28 • 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...