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 fumesoutdoors. ...
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 manufacturerʼsrecommendations. 8.c. Ground the equipment in ac...
Page 5 - iv; PRÉCAUTIONS DE SÛRETÉ
iv SAFETY iv Mar. ʻ93 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 LʼArc 1. Protegez-vous contr...
Page 8 - 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 9 - TABLE OF CONTENTS
viii viii TABLE OF CONTENTS Page Installation .......................................................................................................................Section A Technical Specifications ................................................................................................A-1,...
Page 10 - INSTALLATION; 00% Duty Cycle; INPUT - SINGLE PHASE ONLY; Using standard #8-3 input cable for protected; OUTPUT AMPS
A-1 INSTALLATION PRECISION TIG 185 A-1 TECHNICAL SPECIFICATIONS - PRECISION TIG 185 (K2345-1AND K2347-1,-2) Volts at Rated Amperes 15.2 V AC/DC14.1 V AC/DC13.8 V AC/DC 27.4 V AC/DC 23.6 V AC/DC Type of Output CC (Constant Current) AC/DC Amps 185A AC/DC 90A AC/DC (BAL) 70A AC (AUTO-BAL) 185A AC/DC125...
Page 11 - PHYSICAL DIMENSIONS; AC or DC; OUTPUT RANGE; Machine Only
A-2 INSTALLATION PRECISION TIG 185 A-2 TECHNICAL SPECIFICATIONS - CANADIAN (K2345-2), INTERNATIONAL K2346-1) MODEL HEIGHT WIDTH DEPTH WEIGHT PHYSICAL DIMENSIONS (2) Weld Voltage (NEMA) 27.4 V 23.6 V 15.2 V 14.1 V Output Type CC (Constant Current) AC or DC Weld Current 185 A AC/DC 90 A AC/DC 185 A AC...
Page 12 - SAFETY PRECAUTIONS; SELECT SUITABLE LOCATION
A-3 INSTALLATION PRECISION TIG 185 A-3 SAFETY PRECAUTIONS SELECT SUITABLE LOCATION Place the welder where clean cooling air can freelycirculate in and out through the rear louvers. Dirt, dustor any foreign material that can be drawn into thew e l d e r s h o u l d b e k e p t a t a m i n i m u m . F...
Page 13 - INPUT CONNECTIONS; T e c h n i c a l
A-4 INSTALLATION PRECISION TIG 185 A-4 The high frequency generator, being similar to a radiotransmitter, may cause radio, TV and electronic equip-ment interference problems. These problems may bethe result of radiated interference. Proper groundingmethods can reduce or eliminate radiated interfer-e...
Page 14 - INPUT RECONNECT PROCEDURE; ELECTRIC SHOCK can kill.; CAUTION; FIGURE A.1 Reconnect Leads; OUTPUT CONNECTIONS; FIGURE A.2 Location of Output Connections
A-5 INSTALLATION PRECISION TIG 185 A-5 INPUT RECONNECT PROCEDURE O n m u l t i p l e i n p u t v o l t a g e w e l d e r s , b e s u r e t h emachine is connected per the following instructionsfor the voltage being supplied to the welder. Failure to follow these instructions can cause immedi-ate fai...
Page 15 - Unload
A-6 INSTALLATION PRECISION TIG 185 A-6 A PTA-17 Twist-Mate TIG welding torch with cableand connector is supplied with the Ready-Pak Modelsand available for other models (See AccessoriesSection). Turn the Power Switch “OFF”. Connect thetorch cable Twist-Mate quick connect plug into theElectrode/Gas O...
Page 16 - OPERATION; have held combustibles.; INPUT POWER
B-1 OPERATION PRECISION TIG 185 B-1 ELECTRIC SHOCKcan kill.• Do not touch electrically live partsor electrode with skin or wet cloth-ing. • Insulate yourself from work andground. • Always wear dry insulating gloves.• Read and follow “Electric Shock Warnings” in the Safety section if welding must be ...
Page 17 - PRODUCT DESCRIPTION; E n h a n c e d v e r s i o n o f t h e p a t e n t e d M i c r o -; RECOMMENDED PROCESSES; EQUIPMENT LIMITATIONS
B-2 OPERATION B-2 PRODUCT DESCRIPTION The PRECISION TIG 185 is a member of our fieldacclaimed Precision TIG family of industrial arc weld -ing power sources. Premium features include: 1. Precise constant current output.2. Full range square wave AC/DC TIG (GTAW) weld-- ing. 3. E n h a n c e d v e r s...
Page 18 - • D o n o t s w i t c h t h e p o l a r i t y s w i t c h; CONTROLS AND SETTINGS
B-3 OPERATION B-3 CONTROL FUNCTIONALITY1. POWER SWITCH – Input line switch turns input power ON or OFF, as indicated by the on or off sta-tus of the front panel digital display (See Item 6). 2. POLARITY SWITCH – The rotary power switch has 3-positions for DC+, AC and DC- selections for theelectrode ...
Page 19 - PULSE TIG CONTROL –; OPERATING STEPS; WELDING IN TIG MODE
B-4 OPERATION B-4 8. PULSE TIG CONTROL – The Pulse TIG feature built into the Precision TIG 185 is simplified to be asingle knob control which sets the Pulse Frequencyover the peak pulses/sec. range of about 0.1 to 20pulses per second:• Full CCW (min.) setting of the control knob shuts off Pulse TIG...
Page 20 - REMOTE CONTROL OPERATION
B-5 OPERATION B-5 REMOTE CONTROL OPERATION A Foot Amptrol ™is included with the PRECISIONTIG 185 Ready-Pak models and availiable for othermodels (See Accessories Section) for remote currentcontrol while TIG welding. An optional Hand Amptrolmay also be used. An optional Arc Start Switch maybe used to...
Page 21 - WELDING IN STICK MODE; Put the electrode holder and cable quick connect; • In Stick Mode the output terminal; Adjust the Current Control to the desired amps.; RECOMMENDED ELECTRODE AMPERAGE RANGES - PRECISION TIG 185; SMAW Process
B-6 OPERATION B-6 WELDING IN STICK MODE 1. Put the electrode holder and cable quick connect plug into the electrode output receptacle. Turnclockwise until tight. Connect the work clamp to thework piece. 2. Set the TIG/STICK switch to “STICK”. 3. Set the Polarity Switch to the weld mode desired for t...
Page 22 - ACCESSORIES; FACTORY INSTALLED OPTIONS; Water Cooled System
C-1 ACCESSORIES C-1 FACTORY INSTALLED OPTIONS The PRECISION TIG 185 will be available in twoFactory-Configured Welding Packages: 1. Precision TIG 185 Ready-Pak (K2347-1) • 208/230/1/60 Machine (K2345-1)• 9 ft. (2.7m) Input Cable with NEMA 6-50P Plug*• NEMA 6-50R Receptacle• Integrated 10 ft.(3.1m)Wo...
Page 23 - FIELD INSTALLED OPTIONS; assemblies and; • K2374-1 Electrode Holder and Cable
C-2 ACCESSORIES C-2 FIELD INSTALLED OPTIONS The following Options/Accessories are available forthe PRECISION TIG 185: • K2348-1 Under-Storage Car t Includes a front magnetic latch storage drawer andrear storage bin on a single bottle undercarriage.(L12225 Installation Instructions included) • K870 F...
Page 24 - MAINTENANCE
D-1 MAINTENANCE D-1 SAFETY PRECAUTIONS ELECTRIC SHOCK can kill. • Only qualified personnel should per- form this maintenance. • Turn the input power OFF at the dis- connect switch or fuse box beforeworking on this equipment. • Do not touch electrically hot parts. ------------------------------------...
Page 25 - TROUBLESHOOTING; Step 3. RECOMMENDED COURSE OF ACTION; HOW TO USE TROUBLESHOOTING GUIDE
E-1 TROUBLESHOOTING E-1 PRECISION TIG 185 If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your CAUTION This Troubleshooting Guide is provided to help youlocate and repair possible machine malfunctions.Simply follow the three-step...
Page 26 - Observe all Safety Guidelines detailed throughout this manual; PROBLEMS
E-2 TROUBLESHOOTING E-2 PRECISION TIG 185 Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your CAUTION PROBLEMS (SYMPTOMS) POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION ...
Page 27 - Contact; OUTPUT PROBLEMS
E-3 TROUBLESHOOTING E-3 PRECISION TIG 185 Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your CAUTION PROBLEMS (SYMPTOMS) POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION ...
Page 28 - TIG MODE PROBLEMS
E-4 TROUBLESHOOTING E-4 PRECISION TIG 185 Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your CAUTION PROBLEMS (SYMPTOMS) POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION ...
Page 30 - TIG WELDING PROBLEMS
E-6 TROUBLESHOOTING E-6 PRECISION TIG 185 Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your CAUTION PROBLEMS (SYMPTOMS) POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION ...
Page 31 - Weld current may be set too high; STICK WELDING PROBLEMS
E-7 TROUBLESHOOTING E-7 PRECISION TIG 185 Observe all Safety Guidelines detailed throughout this manual If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your CAUTION PROBLEMS (SYMPTOMS) POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION ...
Page 32 - DIAGRAMS
F-1 DIAGRAMS F-1 PRECISION TIG 185 W IR IN G D IA G R AM - PR EC IS IO N T IG 1 85 G 45 49 B SC R 4 SC R 2SC R 1 D C B A R EA R G AN G L1 EL EC TR O D E T3 N CN O M IC R O -S W IT C H T2 L2 L3 C 3 SC R 3 H 1 H G 31 1A 31 2A O PE N C LO SE D C LO SE D G 4 21 6 G 3 21 8 G 2 G 1 21 7 22 0 AC E F P C B ...
Page 33 - DIMENSION PRINT
F-2 DIMENSION PRINT F-2 PRECISION TIG 185 1 L12201 MACHINE ONLY AND READY-PAK FOR CODES 11105, 11108 A 14.00 20.25 .24 .46.46 D O O R CL CL O S E D 2.442.44 4.83 TO OL T RA Y D OOR 22.00 ** .24 12.38 ** .81 ** 7.00 1.66 TO R C H H OL S TE R ** L O C ATI ON OF (4) O .284 B ASE M O U NTI NG HO LE S . ...
Page 34 - READY-PAK WITH CART FOR CODE 11109
F-3 DIMENSION PRINT F-3 PRECISION TIG 185 L12202 READY-PAK WITH CART FOR CODE 11109 A 19.81 14.00 24.00 1.66 T O RCH H OL S TE R 6.006.00 2.442.44 7.00 30.78 .75 4.83 TO OL T RA Y D OOR 20.25 10.53 .46.46 D O O R CL CL O S E D 12.99 37.24 13.27
Page 35 - NOTES