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Lincoln Electric 10072 - page 1
CLA SSIC ® III & CLA SSIC ® III D OPERA TOR’S MANUAL For Machines with Code Numbers 10033, 10061, 10072 or 10156 Supersedes IM482 IM529-A October, 1999 Safety Depends on You Lincoln arc welding equipment is designed and built with safety in mind. However, your overall safety can be increased by proper installation ... and thoughtful operati ...
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Lincoln Electric 10072 - page 2
FOR ENGINE powered equipment. 1.a. Turn the engine off before troubleshooting and maintenance work unless the maintenance work requires it to be running. ____________________________________________________ 1.b. Operate engines in open, well-ventilated areas or vent the engine exhaust fumes outdoors. ________________________________________________ ...
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Lincoln Electric 10072 - page 3
ii SAFETY ii ARC RA YS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks and the rays of the arc when welding or observing open arc welding. Headshield and filter lens should conform to ANSI Z87. I standards. 4.b. Use suitable clothing made from durable flame-resistant material to protect your skin ...
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Lincoln Electric 10072 - page 4
FOR ELECTRICALL Y powered equipment. 8.a. Turn off input power using the disconnect switch at the fuse box before working on the equipment. 8.b. Install equipment in accordance with the U.S. National Electrical Code, all local codes and the manufacturer’s recommendations. 8.c. Ground the equipment in accordance with the U.S. National Electrical C ...
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Lincoln Electric 10072 - page 5
iv SAFETY iv PRÉCA UTIONS 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. Les circuits ...
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Lincoln Electric 10072 - page 6
Thank You for selecting a QUALITY product by Lincoln Electric. We want you to take pride in operating this Lincoln Electric Company product ••• as much pride as we have in bringing this product to you! Read this Operators Manual completely before attempting to use this equipment. Save this manual and keep it handy for quick reference. Pay par ...
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Lincoln Electric 10072 - page 7
vi T ABLE OF CONTENTS Page Installation .......................................................................................................................Section A Technical Specifications .......................................................................................................A-1 General Description ............................. ...
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Lincoln Electric 10072 - page 8
A-1 CLASSIC III AND IIID A-1 INST ALLA TION TECHNICAL SPECIFICA TIONS – CLASSIC III AND IIID Machine Product Name Classic III Ordering Information K1428-2 CSA @ w/o Wire Feed Module K1428-3 CSA @ w/ Wire Feed Module K1433-1 CSA @ w/o Wire Feed Module K1433-2 CSA @ w/ Wire Feed Module Description 300 Amp DC Arc Welder All Copper Windings Pure DC P ...
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Lincoln Electric 10072 - page 9
A-2 INST ALLA TION CLASSIC III AND IIID A-2 GENERAL DESCRIPTION The Classic ® III and Classic ® III D are heavy duty, engine driven, DC arc welding power sources capable of providing constant current output for stick welding or DC TIG welding. These welders are wound with all copper coils, rated at 300 amps/32 Volts, and provide other Classic fea ...
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Lincoln Electric 10072 - page 10
A-3 INST ALLA TION CLASSIC III AND IIID A-3 PRE-OPERA TION INST ALLA TION Exhaust Spark Arrester Some federal, state or local laws may require that engines be equipped with exhaust spark arresters when they are operated in certain locations where unarrested sparks may present a fire hazard. The standard mufflers included with these welders do not q ...
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Lincoln Electric 10072 - page 11
A-4 INST ALLA TION CLASSIC III AND IIID A-4 Lift Bail A lift bail is provided for lifting with a hoist. T railer (See Optional Features) If the user adapts a non-Lincoln trailer, he must assume responsibility that the method of attachment and usage does not result in a safety hazard nor dam- age the welding equipment. Some of the factors to be cons ...
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Lincoln Electric 10072 - page 12
A-5 INST ALLA TION CLASSIC III AND IIID A-5 PRE-OPERA TION SER VICE READ the engine operating and maintenance instruc- tions supplied with this machine. Oil This unit is supplied from the factory with the engine crankcase filled with a high quality SAE 10W/30 oil. This oil should be acceptable for most typical ambient temperatures. Consult the engi ...
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Lincoln Electric 10072 - page 13
B-1 OPERA TION B-1 ENGINE OPERA TION Operate the welder with the doors closed. Leaving the doors open changes the designed air flow and can cause overheating. Starting the Classic III Continental TM27 Gasoline Engine 1. Turn the Idler control switch to “High”. 2. Turn the Ignition control switch to “On”. 3. Pull out the choke control. 4. Pr ...
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Lincoln Electric 10072 - page 14
B-2 OPERA TION B-2 CLASSIC III AND IIID WELDER OPERA TION Duty Cycle The NEMA output rating of the Classic III & Classic III D are each 300 amperes at 32 arc volts on a 50% duty cycle (consult Specifications in this manual for alternate ratings). Duty cycle is based on a ten minute period; thus, the welder can be loaded at rated output for five ...
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Lincoln Electric 10072 - page 15
B-3 OPERA TION B-3 ------------------------------------------------------------------------ MOVING PARTS can injure. • Keep guards in place. • Keep away from moving parts. • Only qualified personnel should install, use or service this equipment. ------------------------------------------------------------------------ The engine MUST BE COLD b ...
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Lincoln Electric 10072 - page 16
B-4 OPERA TION B-4 CLASSIC III AND IIID IMPORTANT : 1/2” clearance between the FLEXIBLE HOSE and the fuel tank edge is required. Also 2” clearance between FLEXIBLE HOSE and roof. 4. Reconnect negative battery cable. A. FLEXIBLE HOSE B. HEAT COLLECTOR SHIELD C. AIR FILTER NOTE: On welders received directly from the factory, the “Deicing” kit ...
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Lincoln Electric 10072 - page 17
C-1 A CCESSORIES C-1 CLASSIC III AND IIID OPTIONAL FEA TURES (Field Installed) Accessory Set (K703) - Includes electrode and work cables, headshield, work clamp and electrode holder. Hi-Freq ™ (K799) - Provides high frequency plus gas valve for DC TIG welding. Linc-Thaw™ (L2964-1) - Includes meter and fuses to protect welder when thawing frozen ...
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Lincoln Electric 10072 - page 18
D-1 MAINTENANCE D-1 MAINTENANCE General Instructions 1. Blow out the welder and controls with an air hose at least once every two months. In particularly dirty locations, this cleaning may be necessary once a week. Use low pressure air to avoid driving dirt into the insulation. 2. ”Current Range Selector” contacts should not be greased. To keep ...
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Lincoln Electric 10072 - page 19
D-2 MAINTENANCE D-2 Replace brushes when they wear within 1/4” of the pigtail. A complete set of replacement brushes should be kept on hand. Lincoln brushes have a curved face to fit the commutator. Have an experienced mainte- nance man seat these brushes by lightly stoning the commutator as the armature rotates at full speed until contact is mad ...
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Lincoln Electric 10072 - page 20
D-3 D-3 CLASSIC III AND IIID ENGINE SER VICE Hours Between Servicing Daily 50 250 500 Maintenance Item T ype or Capacity I Engine Oil (1) R Engine Oil (1) 7 qts (Including Filter) R Oil Filter Fram #PH-8A Purolator #PER-1A I Air Cleaner C Air Cleaner R Air Cleaner Cartridge Donaldson #P181050 Nelson #70206N C PCV System I Fan Belt T ension C Thrott ...
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Lincoln Electric 10072 - page 21
E-1 TR OUBLESHOO TING CLASSIC III AND IIID E-1 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. CA UTION TR OUBLESHOO TING Have qualified personnel do the troubleshoo ...
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Lincoln Electric 10072 - page 22
E-2 TR OUBLESHOO TING CLASSIC III AND IIID E-2 WELDER TR OUBLESHOO TING TROUBLE CA USES WHA T T O DO 1. Machine fails to hold a. Rough or dirty commutator. a. Commutator should be turned or the heat consistently. cleaned. b. Brushes may be worn down to b. Replace brushes. limit. c. Field circuit may have variable c. Check field current with ammeter ...
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Lincoln Electric 10072 - page 23
E-3 TR OUBLESHOO TING CLASSIC III AND IIID E-3 ELECTR ONIC IDLER TROUBLESHOO TING GUIDE Engine Will Not Return to Idle in Approximately 15 Seconds Set Idler Control Switch to the Auto Position Check Continuity of Idler Control Switch Continuity Good Open 1. Reed Switch in Weld Circuit May be Replace Switch Closed. 2. Check Continuity of Idler Solen ...
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Lincoln Electric 10072 - page 24
E-4 TR OUBLESHOO TING CLASSIC III AND IIID E-4 ENGINE TR OUBLESHOO TING - (TM27 Gasoline Engine Only) TROUBLE CA USES WHA T T O DO 1. Engine fails to start a. Out of fuel. a. Fill with gasoline. b. Clogged fuel system. b. Check all lines to the carburetor. c. Choke not closing tightly. c. Loosen choke cable screw and slack off choke wire. d. Igniti ...
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Lincoln Electric 10072 - page 25
E-5 TR OUBLESHOO TING CLASSIC III AND IIID E-5 ENGINE TR OUBLESHOO TING - (TM27 Gasoline Engine Only) TROUBLE CA USES WHA T T O DO 7. Large decrease in speed. a. Misadjusted governor spring adjusting screw. a. Adjust screw until speed does not drop more than 100 rpm ± 25 rpm when arc is struck. If surge occurs, eliminate it with the control rod. I ...
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Lincoln Electric 10072 - page 26
F-1 DIA GRAMS F-1 CLASSIC III AND IIID CONTROL PANEL COMPONENTS SHOWN AS VEIWED FROM REAR. LEAD COLOR CODE B-BLACK G-GREEN N-BROWN B R + - + - Y R W B B U U SLIP RINGS TO IRON R N A 54 3 2 1 ALTERNATOR AUXILIARY POWER WINDINGS CURRENT TRANSFORMER CB3 CB1 115 VOLT RECEPTACLE 230 VOLT RECEPTACLE Y NEGATIVE SELECTOR SWITCH WELDER LEAD BLOCK AC AC CR2 ...
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Lincoln Electric 10072 - page 27
F-2 DIA GRAMS F-2 CLASSIC III AND IIID CONTROL PANEL COMPONENTS LEAD COLOR CODE B-BLACK G-GREEN N-BROWN B R + - + - Y R W B B U U SLIP RINGS TO IRON R N A 54 3 2 1 ALTERNATOR AUXILIARY POWER WINDINGS CURRENT TRANSFORMER CB3 CB1 115 VOLT RECEPTACLE 230 VOLT RECEPTACLE Y NEGATIVE SELECTOR SWITCH WELDER LEAD BLOCK AC AC CR2 REED RELAY 42 602A G U CB2 ...
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Lincoln Electric 10072 - page 28
F-3 DIA GRAMS F-3 CLASSIC III AND IIID PART NO. WELDER A B C D E F G H S10766-5 J K CLASSIC III & IIID S10766 2-18-94 METRIC cm (ENGLISH in.) 168.3 (66.25) 146.6 (57.70) 22.1 (8.70) 58.4 (23.00) 71.0 (27.94) 32.6 (12.82) 105.8 (41.66) 8.26 (3.25) A CONTROL PANEL F G B H D E C O HOLE O MOUNTING HOLE N.A. N.B. NOTES: OIL AND WATER IN ENGINE, BUT ...
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Lincoln Electric 10072 - page 29
NO TES CLASSIC III AND IIID ...
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Lincoln Electric 10072 - page 30
NO TES CLASSIC III AND IIID ...
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Lincoln Electric 10072 - page 31
Now A vailab le...12th Edition The Procedure Handbook of Ar c W elding With over 500,000 copies of previous editions published since 1933, the Procedure Handbook is considered by many to be the “Bible” of the arc welding industry. This printing will go fast so don’t delay. Place your order now using the coupon below. The hardbound book contai ...
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Lincoln Electric 10072 - page 32
W ARNING A VISO DE PRECA UCION A TTENTION W ARNUNG A TENÇÃO Spanish French German Portuguese Japanese Chinese Korean Arabic READ AND UNDERST AND THE MANUF ACTURER’S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE USED AND FOLLOW YOUR EMPLOYER’S SAFETY PRACTICES. SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL F ABRICANTE P ARA EL ...
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Lincoln Electric 10072 - page 33
W ARNING A VISO DE PRECA UCION A TTENTION W ARNUNG A TENÇÃO Spanish French German Portuguese Japanese Chinese Korean Arabic LEIA E COMPREENDA AS INSTRUÇÕES DO F ABRICANTE P ARA ESTE EQUIP AMENTO E AS P AR TES DE USO, E SIGA AS PRÁTICAS DE SEGURANÇA DO EMPREGADOR. ● Keep your head out of fumes. ● Use ventilation or exhaust to remove fumes ...
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Lincoln Electric 10072 - page 34
• 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 • World's Leader in Welding and Cutting Products • ...
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