RETURN TO MAIN MENU IM832-A PRECISION TIG 185 For use with machines having Code Numbers: December, 2006 11105, 11106, 11107 11108, 11109 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 thoughtful operation on your part. DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MANUAL AND THE SAFETY PRECAUTIONS CONTAINED THROUGHOUT.
i i SAFETY WARNING CALIFORNIA PROPOSITION 65 WARNINGS Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm. The Above For Diesel Engines The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. The Above For Gasoline Engines ARC WELDING CAN BE HAZARDOUS.
ii ii SAFETY ARC RAYS can burn. 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. 3.b. Insulate yourself from work and ground using dry insulation. Make certain the insulation is large enough to cover your full area of physical contact with work and ground.
iii iii SAFETY 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. Avoid welding near hydraulic lines. Have a fire extinguisher readily available. 6.b.
iv iv SAFETY 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 suivantes: Sûreté Pour Soudage A LʼArc 1. Protegez-vous contre la secousse électrique: a. Les circuits à lʼélectrode et à la piéce sont sous tension quand la machine à souder est en marche.
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vii vii 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! Please Examine Carton and Equipment For Damage Immediately When this equipment is shipped, title passes to the purchaser upon receipt by the carrier.
viii viii TABLE OF CONTENTS Page Installation.......................................................................................................................Section A Technical Specifications ................................................................................................A-1,A-2 Safety Precautions ...............................................................................................................A-3 Select Suitable Location.................................................
A-1 A-1 INSTALLATION TECHNICAL SPECIFICATIONS - PRECISION TIG 185 (K2345-1AND K2347-1,-2) INPUT - SINGLE PHASE ONLY Standard Voltage Input Current at Rated Output 208/230/1/60 35A / 32A Effective and 70A / 64A Maximum OUTPUT RANGE Output Current Range Maximum Open Circuit Voltage 7-185 Amps (AC) 5-185 Amps (DC) (STICK AND TIG) Type of Output CC (Constant Current) AC/DC AC OCV: 75 DC OCV: 59 RATED OUTPUT Duty Cycle GTAW 15% Duty Cycle 100% Duty Cycle Amps 185A AC/DC 90A AC/DC (BAL) 70A AC (AUT
A-2 A-2 INSTALLATION TECHNICAL SPECIFICATIONS - CANADIAN (K2345-2), INTERNATIONAL K2346-1) K2345-2 INPUT (at Rated Output) Voltage/Phase/Freq. Current Power Factor Idle Current 460/575/1/60 16 A/13 A Effective 32 A/26 A Max. 0.62 Min. 1.3 A/1.0 A Max. K2346-1 INPUT (at Rated Output) Voltage/Phase/Freq. Current Power Factor Idle Current 380/400-415/1/50/60 19 A/18 A Effective 39 A/37 A Max. 0.62 Min. 1.3 A/1.0 A Max. N80 OUTPUT RANGE Max. OCV.
A-3 A-3 INSTALLATION SAFETY PRECAUTIONS WARNING Read entire installation section before starting installation. WARNING ELECTRIC SHOCK can kill. • Only qualified personnel should perform this installation. • Turn the input power OFF at the disconnect switch or fuse box before working on this equipment. • Do not touch electrically hot parts. • Always connect the PRECISION TIG 185 to a power supply grounded per the National Electrical Code and any local codes.
A-4 INSTALLATION The high frequency generator, being similar to a radio transmitter, may cause radio, TV and electronic equipment interference problems. These problems may be the result of radiated interference. Proper grounding methods can reduce or eliminate radiated interference. Radiated interference can develop in the following four ways: 1. Direct interference radiated from the welder. 2. Direct interference radiated from the welding leads. 3.
A-5 A-5 INSTALLATION INPUT RECONNECT PROCEDURE On multiple input voltage welders, be sure the machine is connected per the following instructions for the voltage being supplied to the welder. CAUTION INPUT LEADS L1 & L2 LEAD H1 (DO NOT REMOVE) Failure to follow these instructions can cause immediate failure of components within the welder and void machineʼs warranty.
A-6 INSTALLATION A PTA-17 Twist-Mate TIG welding torch with cable and connector is supplied with the Ready-Pak Models and available for other models (See Accessories Section). Turn the Power Switch “OFF”. Connect the torch cable Twist-Mate quick connect plug into the Electrode/Gas Output Receptacle on the front of the welder and turn it clockwise until it is tight. This is a Twist-Mate quick connect terminal and also provides the gas connection for the shielding gas to the torch.
B-1 B-1 OPERATION GRAPHIC SYMBOLS THAT APPEAR ON THIS MACHINE OR IN THIS MANUAL SAFETY PRECAUTIONS Read and understand this entire section before operating the machine. INPUT POWER WARNING ELECTRIC SHOCK can kill. • Do not touch electrically live parts or electrode with skin or wet clothing. • Insulate yourself from work and ground. • Always wear dry insulating gloves.
B-2 B-2 OPERATION PRODUCT DESCRIPTION The PRECISION TIG 185 is a member of our field acclaimed 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. Enhanced version of the patented MicroStart™Technology for its lower Minimum(5 amps) to higher Maximum (185 amps) output control range. 4. Built-in high frequency stabilization for DC TIG starting and continuous AC TIG welding. 5.
B-3 B-3 OPERATION CONTROLS AND SETTINGS All operator controls and adjustments are located on the front of the PRECISION TIG 185. Refer to Figure B.1 and corresponding explanations. FIGURE B.1 - CONTROL PANEL 13 9 3 4 5 1. POWER SWITCH 2. POLARITY SWITCH 3. MODE SWITCH 4. AC BALANCE CONTROL 5. MAXIMUM OUTPUT CONTROL (AMPS) 6. DIGITAL METERS 7. POST FLOW TIME 8. PULSE TIG CONTROL 9. THERMAL SHUTDOWN LIGHT 10. REMOTE RECEPTACLE 11. ELECTRODE/GAS OUTPUT RECEPTACLE 12. WORK CABLE 13.
B-4 OPERATION 8. PULSE TIG CONTROL – The Pulse TIG feature built into the Precision TIG 185 is simplified to be a single knob control which sets the Pulse Frequency over the peak pulses/sec. range of about 0.1 to 20 pulses per second: • Full CCW (min.) setting of the control knob shuts off Pulse TIG (0.0 pps). • Peak Pulse level is set by the Max. Output Control and the Remote Amptrol (if used). • Background Current level is typically optimized at a fixed 50% of Peak Pulse level setting.
B-5 OPERATION B-5 REMOTE CONTROL OPERATION BENEFITS OF THE PRECISION TIG 185 DESIGN A Foot Amptrol ™is included with the PRECISION TIG 185 Ready-Pak models and availiable for other models (See Accessories Section) for remote current control while TIG welding. An optional Hand Amptrol may also be used. An optional Arc Start Switch may be used to start and stop the welding if no remote control of the current is desired. Refer to the Accessories Section of this manual.
B-6 B-6 OPERATION WELDING IN STICK MODE 5. Turn the power switch to “ON”. 1. Put the electrode holder and cable quick connect plug into the electrode output receptacle. Turn clockwise until tight. Connect the work clamp to the work piece. 6. Adjust the Current Control to the desired amps. 2. Set the TIG/STICK switch to “STICK”. 3. Set the Polarity Switch to the weld mode desired for the type of electrode being used (most commonly DC+). 7. Strike an arc and weld.
C-1 C-1 ACCESSORIES FACTORY INSTALLED OPTIONS 2. PRECISION TIG 185 Ready-Pak w/Cart (K2347-2) The PRECISION TIG 185 will be available in two Factory-Configured Welding Packages: • 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) Work Lead w/Clamp* • Gas Regulator with 10 ft.(3.1m) Hose • PTA-17 12.5 ft.(3.8m) One cable Superflex Torch with 3/32”(2.
C-2 ACCESSORIES FIELD INSTALLED OPTIONS The following Options/Accessories are available for the PRECISION TIG 185: • K2348-1 Under-Storage Cart Includes a front magnetic latch storage drawer and rear storage bin on a single bottle undercarriage. (L12225 Installation Instructions included) • K870 Foot Amptrol Single pedal foot activation of arc start switch and output control, with 25 ft.(7.6m) plug cable. C-2 • Magnum “Pro-Torch™ TIG Torch” assemblies and Accessories.
D-1 D-1 MAINTENANCE WARNING SAFETY PRECAUTIONS WARNING ELECTRIC SHOCK can kill. • Only qualified personnel should perform this maintenance. • Turn the input power OFF at the disconnect switch or fuse box before working on this equipment. • Do not touch electrically hot parts. ------------------------------------------------------------------------ WARNING To avoid receiving a high frequency shock, keep the TIG torch and cables in good condition.
E-1 TROUBLESHOOTING E-1 HOW TO USE TROUBLESHOOTING GUIDE WARNING 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.
E-2 E-2 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION OUTPUT PROBLEMS Machine is Dead -No Output - No 1. Make certain that the input power Fan switch is in the “ON” position and machine is plugged in. 2. Check the input voltage at the machine. Input voltage must match the rating plate and voltage connection. Refer to Reconnect Procedure in the Installation section of this manual. 3.
E-3 E-3 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION OUTPUT PROBLEMS Machine regularly over heats - the- 1. Welding application may exceed mostat opens, Yellow light on front recommended duty cycle. Reduce panel glows. The fan runs but the duty cycle. machine has no output. 2. Dirt and dust may have clogged the cooling channels inside the machine. Blow out unit with clean, dry low pressure air. 3.
E-4 E-4 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION TIG MODE PROBLEMS Machine output is intermittently lost. 1. Problem may be caused by high Gas flow and high frequency are frequency interference. Make sure also interrupted. that the machine is grounded properly according to the installation instructions. If there are other high frequency sources in the area, make certain that they are grounded properly.
E-5 E-5 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION TIG MODE PROBLEMS Black areas along weld bead. 1. Clean any oily or organic contamination from the work piece. 2. Tungsten electrode may be contaminated. Replace or sharpen. 3. Check for contaminated gas or leaks in the gas line, torch, or connections. 4. Gas shielding may be insufficient. Increase gas flow; reduce tungsten stickout beyond gas cup.
E-6 E-6 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION TIG WELDING PROBLEMS No high frequency. Machine is in the 1. If the machine location is in a TIG Mode and has normal output. highly dirty environment with conductive contaminants, check and clean the spark gap with a low pressure air stream per the maintenance instructions. No gas flow when Amptrol is activat- 1.
E-7 E-7 TROUBLESHOOTING Observe all Safety Guidelines detailed throughout this manual PROBLEMS (SYMPTOMS) POSSIBLE CAUSE RECOMMENDED COURSE OF ACTION STICK WELDING PROBLEMS Stick electrode “Blasts Off” when arc 1. Weld current may be set too high is struck. for electrode size. Reduce current control setting, or use a larger diameter electrode. Stick electrode “sticks” in the weld 1. The weld current may be set too puddle. low. Increase the current control setting or use a smaller diameter electrode.
PRECISION TIG 185 C 284 POS AC L5 F S2 B A POLARITY SWITCH E D FRONT 240 GANG REMOTE RECEPTACLE A B C D E 285 X1 S1 H G S2A 311A MICRO-SWITCH NO NC 312A (REAR VIEW, SHOWN IN AC POSITION) DC REAR GANG POLARITY SWITCH MICRO SWITCH AC A-C, D-E, B-F OPEN DC+ B-D, C-E, A-F, G-H CLOSED DC- B-D, A-E, C-F, G-H CLOSED POWER SWITCH 311 312 CHOKE S4 314 313 H1 D E A C B 1 2 3 4 5 6 J5 J4 4 32 1 311 G PULSE CONTROL R THERMAL Y LED OUTPUT CONTROL J2 285 284 J6 J1 STICK L
PRECISION TIG 185 .81** .24 7.00 14.00 12.38 ** ** L OCATI ON OF (4) O .284ASE B MOUNTI NG HOLES. 1.66TORCH HOLSTER 1.00** 20.25 4.83 TOOL R TAY DOOR .24 12.99 MACHINE ONLY AND READY-PAK FOR CODES 11105, 11108 24.00 22.00 ** .46DOOR CL OSED 1 2.44 L12201 A 1.
7.00 PRECISION TIG 185 19.81 14.00 1.66TORCH HOLSTER 30.78 4.83 TOOL R TAY DOOR 10.53 20.25 .75 12.99 2.44 24.00 .46DOOR CL OSED READY-PAK WITH CART FOR CODE 11109 37.24 6.00 13.
NOTES PRECISION TIG 185
● Do not touch electrically live parts or WARNING Spanish AVISO DE PRECAUCION French ATTENTION German WARNUNG Portuguese ATENÇÃO ● Keep flammable materials away. ● Wear eye, ear and body protection. ● Mantenga el material combustible ● Protéjase los ojos, los oídos y el electrode with skin or wet clothing. ● Insulate yourself from work and ground. ● No toque las partes o los electrodos bajo carga con la piel o ropa mojada. ● Aislese del trabajo y de la tierra.
● Keep your head out of fumes. ● Use ventilation or exhaust to ● Turn power off before servicing. ● Do not operate with panel open or guards off. remove fumes from breathing zone. ● Los humos fuera de la zona de res- piración. ● Mantenga la cabeza fuera de los humos. Utilice ventilación o aspiración para gases. ● Gardez la tête à l’écart des fumées. ● Utilisez un ventilateur ou un aspira- ● Desconectar el cable de ali- mentación de poder de la máquina antes de iniciar cualquier servicio.
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