Page 2 - SAFETY; WARNING; CALIFORNIA PROPOSITION 65 WARNINGS; The Above For Diesel Engines
FOR ENGINEpowered 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....
Page 3 - ii
ii SAFETY ii ARC RAYS can burn. 4.a. Use a shield with the proper filter and cover plates to protect your eyes from sparks andthe rays of the arc when welding or observingopen arc welding. Headshield and filter lensshould conform to ANSI Z87. I standards. 4.b. Use suitable clothing made from durable...
Page 4 - iii
FOR ELECTRICALLYpowered equipment. 8.a. Turn off input power using the disconnect switch at the fuse box before working onthe equipment. 8.b. Install equipment in accordance with the U.S. National Electrical Code, all local codes and the manufacturer’srecommendations. 8.c. Ground the equipment in ac...
Page 5 - iv; PRÉCAUTIONS DE SÛRETÉ
iv SAFETY iv 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 seco...
Page 6 - Thank You; Please Examine Carton and Equipment For Damage Immediately
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...
Page 7 - TABLE OF CONTENTS
vi TABLE OF CONTENTS Page Installation .......................................................................................................................Section A Technical Specifications .......................................................................................................A-1G...
Page 8 - CLASSIC III AND IIID; INSTALLATION; TECHNICAL SPECIFICATIONS – CLASSIC III AND IIID; Machine; Engine
A-1 CLASSIC III AND IIID A-1 INSTALLATION TECHNICAL SPECIFICATIONS – 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...
Page 9 - GENERAL DESCRIPTION; DESIGN FEATURES
A-2 INSTALLATION 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 capableof providing constant current output for stick weldingor DC TIG welding. These welders are wound with allcopper coils, rated at 300 amps...
Page 10 - P R E - O P E R AT I O N I N S TA L L AT I O N
A-3 INSTALLATION CLASSIC III AND IIID A-3 P R E - O P E R AT I O N I N S TA L L AT I O N Exhaust Spark Arrester Some federal, state or local laws may require thatengines be equipped with exhaust spark arresterswhen they are operated in certain locations whereunarrested sparks may present a fire haza...
Page 11 - Lift Bail; Polarity Control and Cable Sizes; positive; Negative; FALLING EQUIPMENT
A-4 INSTALLATION CLASSIC III AND IIID A-4 Lift Bail A lift bail is provided for lifting with a hoist. Trailer (See Optional Features) I f t h e u s e r a d a p t s a n o n - L i n c o l n t r a i l e r , h e m u s tassume responsibility that the method of attachmentand usage does not result in a saf...
Page 12 - PRE-OPERATION SERVICE; READ; CAUTION; GASES FROM BATTERY can explode.
A-5 INSTALLATION CLASSIC III AND IIID A-5 PRE-OPERATION SERVICE READ the engine operating and maintenance instruc- tions supplied with this machine. Oil This unit is supplied from the factory with the enginecrankcase filled with a high quality SAE 10W/30 oil.This oil should be acceptable for most ty...
Page 13 - OPERATION; ENGINE OPERATION; See additional warning information at the; Stopping the Engine
B-1 OPERATION B-1 ENGINE OPERATION Operate the welder with the doors closed. Leavingthe doors open changes the designed air flow and cancause overheating. Starting the Classic III Continental TM27Gasoline Engine 1. Turn the Idler control switch to “High”. 2. Turn the Ignition control switch to “On”....
Page 14 - WELDER OPERATION; Duty Cycle
B-2 OPERATION B-2 CLASSIC III AND IIID WELDER OPERATION Duty Cycle T h e N E M A o u t p u t r a t i n g o f t h e C l a s s i c I I I &Classic III D are each 300 amperes at 32 arc volts ona 50% duty cycle (consult Specifications in this manualfor alternate ratings). Duty cycle is based on a ten...
Page 15 - Carburetor Deicing Kit; C A R B U R E TO R D E I C I N G K I T; FIGURE 1
B-3 OPERATION B-3 ------------------------------------------------------------------------ MOVING PARTS can injure. • Keep guards in place.• Keep away from moving parts.• Only qualified personnel shouldinstall, use or service this equipment. ----------------------------------------------------------...
Page 16 - FLEXIBLE HOSE; FIGURE 2
B-4 OPERATION 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 HOSEB. HEAT COLLECTOR SHIELDC. AIR FILTER NOTE: On welders received direc...
Page 17 - ACCESSORIES; OPTIONAL FEATURES
C-1 ACCESSORIES C-1 CLASSIC III AND IIID OPTIONAL FEATURES (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 ...
Page 18 - MAINTENANCE; Cooling System; S e e a dd i t i o n a l w a r n i n g i n fo r m a t i o n a t
D-1 MAINTENANCE D-1 MAINTENANCE General Instructions1. Blow out the welder and controls with an air hose at least once every two months. In particularly dirtylocations, this cleaning may be necessary once aweek. Use low pressure air to avoid driving dirt intothe insulation. 2. ”Current Range Selecto...
Page 19 - Idler Maintenance; negative; Nameplates
D-2 MAINTENANCE D-2 Replace brushes when they wear within 1/4” of thepigtail. A complete set of replacement brushes shouldbe kept on hand. Lincoln brushes have a curved faceto fit the commutator. Have an experienced mainte-nance man seat these brushes by lightly stoning thecommutator as the armature...
Page 20 - ENGINE SERVICE; Hours Between Servicing; I = Inspect C = Clean R = Replace
D-3 D-3 CLASSIC III AND IIID ENGINE SERVICE Hours Between Servicing Daily 50 250 500 Maintenance Item Type 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 #...
Page 21 - TROUBLESHOOTING
E-1 TROUBLESHOOTING 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. CAUTION TROUBLESHOOTIN...
Page 22 - WELDER TROUBLESHOOTING; TROUBLE
E-2 TROUBLESHOOTING CLASSIC III AND IIID E-2 WELDER TROUBLESHOOTING TROUBLE CAUSES WHAT TO 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 v...
Page 23 - ELECTRONIC IDLER TROUBLESHOOTING GUIDE
E-3 TROUBLESHOOTING CLASSIC III AND IIID E-3 ELECTRONIC IDLER TROUBLESHOOTING 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 Swi...
Page 24 - ENGINE TROUBLESHOOTING -; Local Lincoln Authorized Field Service Facility
E-4 TROUBLESHOOTING CLASSIC III AND IIID E-4 ENGINE TROUBLESHOOTING - (TM27 Gasoline Engine Only) TROUBLE CAUSES WHAT TO 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 cabl...
Page 26 - DIAGRAMS
F-1 DIAGRAMS 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 NEGA...
Page 28 - DIMENSION PRINT
F-3 DIAGRAMS 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 HO...
Page 29 - NOTES
Page 31 - Lincoln Welding School; BASIC COURSE
Now Available...12th EditionThe Procedure Handbook of Arc Welding 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. T h i s p r i n t i n g w i l l g o f a s t s o d o n ’ t d e l a y . P l ...