WELDPAK 140HD - Welding machine LINCOLN ELECTRIC - Free user manual and instructions

USER MANUAL WELDPAK 140HD LINCOLN ELECTRIC

T10639 | *TTVF D ate +VO - 22 © Lincoln Global, Inc. All Rights Reserved.For use with Product Numbers:

WELD-PAK 90i FC Register your machine: www.lincolnelectric.com/register Authorized Service and Distributor Locator: www.lincolnelectric.com/locator Save for future reference Date PurchasedCode: (ex: 10859)Serial: (ex: U1060512345)Need Help? Call 1.888.935.3877 to talk to a Service RepresentativeHours of Operation: 8:00 AM to 6:00 PM (ET) Mon. thru Fri.After hours? Use “Ask the Experts” at lincolnelectric.comA Lincoln Service Representative will contact you no later than the following business day.For Service outside the USA: Email: [e-mail] YOU FOR SELECTING

A QUALITY PRODUCT BY

DAMAGE IMMEDIATELY When this equipment is shipped, title passes to the purchaser upon receipt by the carrier. Consequently, claims for material damaged in shipment must be made by the purchaser against the transportation company at the time the shipment is received.

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. And, most importantly, think before you act and be careful. This statement appears where the information must be followed exactly to avoid serious personal injury or loss of life. This statement appears where the information must be followed to avoid minor personal injury or damage to this equipment. KEEP YOUR HEAD OUT OF THE FUMES. DON’T get too close to the arc. Use corrective lenses if necessary to stay a reasonable distance away from the arc. READ and obey the Safety Data Sheet (SDS) and the warning label that appears on all containers of welding materials. USE ENOUGH VENTILATION or exhaust at the arc, or both, to keep the fumes and gases from your breathing zone and the general area. IN A LARGE ROOM OR OUTDOORS, natural ventilation may be adequate if you keep your head out of the fumes (See below). USE NATURAL DRAFTS or fans to keep the fumes away from your face. If you de velop unusual symptoms, see your supervisor. Perhaps the welding atmosphere and ventilation system should be checked.

WEAR CORRECT EYE, EAR &

BODY PROTECTION PROTECT your eyes and face with welding helmet properly fitted and with proper grade of filter plate (See ANSI Z49.1). PROTECT your body from welding spatter and arc flash with protective clothing including woolen clothing, flame-proof apron and gloves, leather leggings, and high boots. PROTECT others from splatter, flash, and glare with protective screens or barriers. IN SOME AREAS, protection from noise may be appropriate. BE SURE protective equipment is in good condition. Also, wear safety glasses in work area AT ALL TIMES. SPECIAL SITUATIONS DO NOT WELD OR CUT containers or materials which previously had been in contact with hazardous substances unless they are properly cleaned. This is extremely dangerous. DO NOT WELD OR CUT painted or plated parts unless special precautions with ventilation have been taken. They can release highly toxic fumes or gases. Additional precautionary measures PROTECT compressed gas cylinders from excessive heat, mechanical shocks, and arcs; fasten cylinders so they cannot fall. BE SURE cylinders are never grounded or part of an electrical circuit. REMOVE all potential fire hazards from welding area. ALWAYS HAVE FIRE FIGHTING EQUIPMENT READY FOR IMMEDIATE USE AND KNOW HOW TO USE IT. WARNING CAUTION 6DIHW\RISECTION A: WARNINGS

CALIFORNIA PROPOSITION 65 WARNINGS

WARNING: Breathing diesel engine exhaust

exposes you to chemicals known to the State of California to cause cancer and birth defects, or other reproductive harm.

• Always start and operate the engine in a well-ventilated area.

• If in an exposed area, vent the exhaust to the outside.

• Do not modify or tamper with the exhaust system.

• Do not idle the engine except as necessary. For more information go to www.P65 warnings.ca.gov/diesel

WARNING: This product, when used for welding or

cutting, produces fumes or gases which contain chemicals known to the State of California to cause birth defects and, in some cases, cancer. (California Health & Safety Code § 25249.5 et seq.)

WARNING: Cancer and Reproductive Harm

YOURSELF AND OTHERS FROM POSSIBLE SERIOUS

THEIR DOCTOR BEFORE OPERATING. Read and understand the following safety highlights. For additional safety information, it is strongly recommended that you purchase a copy of “Safety in Welding & Cutting - ANSI Standard Z49.1” from the American Welding Society, P.O. Box 351040, Miami, Florida 33135 or CSA Standard W117.2. 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,

EQUIPMENT. 1.a. Turn the engine off before troubleshootingand maintenance work unless themaintenance work requires it to be running.1.b. Operate engines in open, well-ventilated areas or vent the engineexhaust fumes outdoors.arc or when the engine is running. Stop theengine and allow it to cool before refueling toprevent spilled fuel from vaporizing on contacttank. If fuel is spilled, wipe it up and do not start engine untilfumes have been eliminated.1.d. Keep all equipment safety guards, coversand devices in position and in good repair.Keep hands, hair, clothing and tools away from V-belts, gears, fans and all other moving parts when starting, operating orrepairing equipment.1.e. In some cases it may be necessary to remove safety guards toperform required maintenance. Remove guards only whennecessary and replace them when the maintenance requiringtheir removal is complete. Always use the greatest care whenworking near moving parts.1.f. Do not put your hands near the engine fan. Do not attempt tooverride the governor or idler by pushing on the throttle controlrods while the engine is running.1.g. To prevent accidentally starting gasoline engines while turningthe engine or welding generator during maintenance work,disconnect the spark plug wires, distributor cap or magneto wireas appropriate.1.h. To avoid scalding, do not remove the radiatorpressure cap when the engine is hot. ELECTRIC AND

BE DANGEROUS causes localized Electric and Magnetic Fields (EMF). and welding machineswelders having a pacemaker should consult their physicianbefore welding.which are now not known.2.d. All welders should use the following procedures in order to2.d.1. Route the electrode and work cables together - Securethem with tape when possible.2.d.2. Never coil the electrode lead around your body.2.d.3. Do not place your body between the electrode and workcables. If the electrode cable is on your right side, thework cable should also be on your right side.2.d.4. Connect the work cable to the workpiece as close as pos-sible to the area being welded.2.d.5. Do not work next to welding power source. SAFETY Safety 02 of 04 - 10/08/20211.c. Do not add the fuel near an open ame weldingwith hot engine parts and igniting. Do not spill fuel when lling2.a. Electric current owing through any conductorWelding current creates EMF elds around welding cables2.b. EMF elds may interfere with some pacemakers, and2.c. Exposure to EMF elds in welding may have other health effectsminimize exposure to EMF elds from the welding circuit:1.i. Using a generator indoors CAN KILL YOU INMINUTES.1.j. Generator exhaust contains carbon monoxide. This is a poisonyou cannot see or smell.1.k. NEVER use inside a home or garage,EVEN IF doors and windows are open.1.l. Only use OUTSIDE and far away fromwindows, doors and vents.1.m. Avoid other generator hazards. READMANUAL BEFORE USE.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. In addition to the normal safety precautions, if welding must be performed under electrically hazardous conditions (in damp locations or while wearing wet clothing; on metal structures such as floors, gratings or scaffolds; when in cramped positions such as sitting, kneeling or lying, if there is a high risk of unavoidable or accidental contact with the workpiece or ground) use the following equipment:

• AC Welder with Reduced Voltage Control. 3.c. In semiautomatic or automatic wire welding, the electrode, electrode reel, welding head, nozzle or semiautomatic welding gun are also electrically “hot”. 3.d. Always be sure the work cable makes a good electrical connection with the metal being welded. The connection should be as close as possible to the area being welded. 3.e. Ground the work or metal to be welded to a good electrical (earth) ground. 3.f. Maintain the electrode holder, work clamp, welding cable and welding machine in good, safe operating condition. Replace damaged insulation. 3.g. Never dip the electrode in water for cooling. 3.h. Never simultaneously touch electrically “hot” parts of electrode holders connected to two welders because voltage between the two can be the total of the open circuit voltage of both welders. 3.i. When working above floor level, use a safety belt to protect yourself from a fall should you get a shock. 3.j. Also see It ems 6.c. and 8. ARC RAYS 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 and that of your helpers from the arc rays. 4.c. Protect other nearby personnel with suitable, non-flammable screening and/or warn them not to watch the arc nor expose themselves to the arc rays or to hot spatter or metal.

CAN BE DANGEROUS. 5.a. Welding may produce fumes and gases hazardous to health. Avoid breathing these fumes and gases. When welding, keep your head out of the fume. Use enough ventilation and/or exhaust at the arc to keep fumes and gases away from the breathing zone. When welding hardfacing (see instructions on container or SDS) or on lead or cadmium plated steel and other metals or coatings which produce highly toxic fumes, keep exposure as low as possible and within applicable OSHA PEL and ACGIH TLV limits using local exhaust or mechanical ventilation unless exposure assessments indicate otherwise. In confined spaces or in some circumstances, outdoors, a respirator may also be required. Additional precautions are also required when welding on galvanized steel.

5. b. The operation of welding fume control equipment is affected by

various factors including proper use and positioning of the equipment, maintenance of the equipment and the specific welding procedure and application involved. Worker exposure level should be checked upon installation and periodically thereafter to be certain it is within applicable OSHA PEL and ACGIH TLV limits. 5.c. Do not weld in locations near chlorinated hydrocarbon vapors coming from degreasing, cleaning or spraying operations. The heat and rays of the arc can react with solvent vapors to form phosgene, a highly toxic gas, and other irritating products. 5.d. Shielding gases used for arc welding can displace air and cause injury or death. Always use enough ventilation, especially in confined areas, to insure breathing air is safe. 5.e. Read and understand the manufacturer’s instructions for this equipment and the consumables to be used, including the Safety Data Sheet (SDS) and follow your employer’s safety practices. SDS forms are available from your welding distributor or from the manufacturer. 5.f. Also see item 1.b. SAFETY

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. Where compressed gases are to be used at the job site, special precautions should be used to prevent hazardous situations. Refer to “Safety in Welding and Cutting” (ANSI Standard Z49.1) and the operating information for the equipment being used. 6.c. When not welding, make certain no part of the electrode circuit is touching the work or ground. Accidental contact can cause overheating and create a fire hazard. 6.d. Do not heat, cut or weld tanks, drums or containers until the proper steps have been taken to insure that such procedures will not cause flammable or toxic vapors from substances inside. They can cause an explosion even though they have been “cleaned”. For information, purchase “Recommended Safe Practices for the Preparation for Welding and Cutting of Containers and Piping That Have Held Hazardous Substances”, AWS F4.1 from the American Welding Society (see address above). 6.e. Vent hollow castings or containers before heating, cutting or welding. They may explode. 6.f. Sparks and spatter are thrown from the welding arc. Wear oil free protective garments such as leather gloves, heavy shirt, cuffless trousers, high shoes and a cap over your hair. Wear ear plugs when welding out of position or in confined places. Always wear safety glasses with side shields when in a welding area. 6.g. Connect the work cable to the work as close to the welding area as practical. Work cables connected to the building framework or other locations away from the welding area increase the possibility of the welding current passing through lifting chains, crane cables or other alternate circuits. This can create fire hazards or overheat lifting chains or cables until they fail. 6.h. Also see item 1.c. 6.I. Read and follow NFPA 51B “Standard for Fire Prevention During Welding, Cutting and Other Hot Work”, available from NFPA, 1 Batterymarch Park, PO box 9101, Quincy, MA 022690-9101. 6.j. Do not use a welding power source for pipe thawing.

CYLINDER MAY EXPLODE IF

DAMAGED. 7.a. Use only compressed gas cylinders containing the correct shielding gas for the process used and properly operating regulators designed for the gas and pressure used. All hoses, fittings, etc. should be suitable for the application and maintained in good condition. 7.b. Always keep cylinders in an upright position securely chained to an undercarriage or fixed support. 7.c. Cylinders should be located:

• Away from areas where they may be struck or subjected to physical damage.

• A safe distance from arc welding or cutting operations and any other source of heat, sparks, or flame. 7.d. Never allow the electrode, electrode holder or any other electrically “hot” parts to touch a cylinder. 7.e. Keep your head and face away from the cylinder valve outlet when opening the cylinder valve. 7.f. Valve protection caps should always be in place and hand tight except when the cylinder is in use or connected for use. 7.g. Read and follow the instructions on compressed gas cylinders, associated equipment, and CGA publication P-l, “Precautions for Safe Handling of Compressed Gases in Cylinders,” available from the Compressed Gas Association, 14501 George Carter Way Chantilly, VA 20151. FOR ELECTRICALLY 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 Code and the manufacturer’s recommendations. Refer to http://www.lincolnelectric.com/safety for additional safety information. SAFETY 6DIHW\RI2 WELD-PAK 90i FC

1. Inverter power source – more efcient to operate, provides

smoother weld characteristics than traditional welders

2. Innite welding voltage to allow ne tuning of weld charac-

3. 30% Duty cycle at 90 Amps

4. Lightweight and portable – Ideal for maintenance and mobile

welders THERMAL PROTECTION The machine has a maximum output duty cycle of 30%. If the duty cycle is exceeded, a thermal protector will shut off the output until the machine cools to a normal operating temperature. This is an automatic function of the machine and does not require user inter- vention. REQUIRED ACCESSORIES

0.030”, 0.035” GROSS WEIGHT 15 LBS (7KGS) IPS RATING IP21S INSTALLATIONWELD-PAK 90i FC Read this entire installation section before you start installation. Safety Precautions Do not attempt to use this equipment until you have thoroughly read all installation, operating and maintenance information supplied with your equipment. They include important safety precautions and detailed operating and maintenance instructions. ELECTRIC SHOCK can kill.

• Only qualied personnel should perform this installation.

• Do not touch electrically live parts.

• Always connect the machine to an earthed mains supply.

SELECT SUITABLE LOCATION

Place the welder where clean cooling air can freely circulate in and out of the front & rear louver vents. Dirt, dust or any foreign material that can be drawn through vents into welder must be kept to a minimum. Failure to observe these precautions can result in excessive operating temperatures which can lead to plant failure. GRINDING Do not direct grinding particles towards the welder. An abundance of conductive material can cause plant failure. STACKING This machine cannot be stacked.

TRANSPORT - UNLOADING

Never underestimate the weight of equipment, never move or leave suspended in the air above people. The machine should be lifted and carried by the provided strap, or by cradling the machine. The machine should not be carried by the input, cord, output cables, or welding gun. Utilize proper lifting techniques when carrying or lifting the machine to prevent injury. Falling Equipment can cause injury. Never lift welder with gas bottle attached. Never lift above personnel. TILTING Machine must be placed on a secure level surface ENVIRONMENTAL RATING The welding power source carries the IP21S rating. It may be used in normal industrial and commercial environments. Avoid using in areas where water / rain is around. Read and follow the ‘Electric Shock Warnings’ in the safety section if welding must be performed under electrically hazardous conditions such as welding in wet areas or water on the work piece. ELECTRIC SHOCK can kill.

• This welder must be grounded to earth The high frequency generator being similar to a radio transmitter may cause interference to radio, TV and other electronic equipment.

• These problems may be the result of radiated interference. Proper grounding methods can reduce or eliminate this. Radiated interference can develop in the following ways

1. Direct interference from welder power source

2. Direct interference from the welding leads

3. Direct interference radiated from feedback into power lines

4. Interference from re-radiation by un-grounded metallic

objects Keeping these contributing factors in mind, installing equipment as per following instructions should minimize problems

1. Keep the welder input power lines as short as possible and

enclose as much of them as possible in metal conduit or equivalent shielding. There should be a good electrical contact between this conduit and ground (Earth)

2. Keep the work and electrode leads as short as possible. Tape

the leads together where practical

3. Be sure the torch and earth leads rubber coverings are free

from cuts and cracks that allow welding power leakage

4. Keep earth lead connection to work in good condition – Clean

area on workbench where earth clamp is situated on a regular basis. WARNING WARNING WARNING CAUTION INSTALLATIONWELD-PAK 90i FC

INPUT POWER CONNECTION

The machine has one input connection, the power input cable. The power input cable is located on the rear. The Weld-Pak 90i FC is provided with a 120V cable, 6.0ft. (1.8m) in length, with a 15Amp 5-15P plug molded onto the cord. The rated output of the Weld-Pak 90i FC is available when connected to a 20A branch circuit. When connected to a branch circuit with lower capacity, lower welding current and duty cycle must be used.

CODE REQUIREMENTS FOR ELECTRICAL INPUT

CONNECTIONS This welding machine must be connected to a power source in accordance with applicable electrical codes. The National Electrical Code provides standards for amperage handling capability of supply conductors based on duty cycle of the welding source. If there is any question about the installation meeting applicable electrical code requirements, consult a qualied electrician. Do not connect the machine to an input power supply with a rated voltage that is greater than 125 volts. Do not remove the power cord ground prong.

EXTENSION CORD USAGE

If an extension cord is required, use one that is rated for the application and is 3 conductor #14 AWG (2.1 mm2) or larger. The recommended maximum lengths are 25 ft (7.5 m) if #14 AWG (2.1 mm2) is used and 50 ft (15 m) if #12 AWG (3.3 mm2) is used.

FLUX-CORED (INNERSHIELD) WELDING

The recommended electrode for the ux-cored, self-shielded process is 0.035” (0.9 mm) diameter Lincoln Innershield NR-211-MP on 1 lbs. (.5 kg) spools. FIGURE 1

1. Adjustment for Voltage

2. Adjustment for Wire feed speed

3. Power and protection LEDs

8. Spool cover latch

WIRE LOADING AND THREADING

R efer to F igure 2. Turn machine power switch to the OFF (“0”) position before working inside the wire feed enclosure. Make sure that the wire feed drive roll and the contact tip of the gun match the diameter and type of wire used.

1. Push the spool onto the spindle so that the wire feeds off the

bottom of the spool, toward the drive roll.

2. Push the spool spacer onto the spindle, against the spool.

3. Slide the spring onto the spool, then press on the spool lock,

turning it clockwise to lock the spool assembly onto the spindle. FIGURE 2

4. Release the spring loaded thumb screw and rotate the idle roll

arm away from the wire feed drive roll. Ensure that the visible, stenciled size on the drive roll side facing you matches the wire size being used.

5. Carefully detach the end of the wire from the spool. Maintain

tension on the wire to prevent the spool from unwinding and do not release the wire until after step 5. mm).

7. Thread the wire through the incoming guide tube, over the

drive roll, and into the gun liner.

8. Close the idle roll arm and turn down the thumbscrew until

release the welding wire). Make sure the wire is positioned in the groove of the lower drive roll.

9. The spring loaded thumbscrew on the idle roll arm adjusts

the pressure on the wire. Adjust pressure by turning the thumbscrew to prevent spool overrun, but still allow smooth and easy wire feeding. Start with the pressure set to an inter- mediate value. Readjust, if necessary. If the drive roll slips while feeding wire, the pressure should be increased until the wire feeds properly. FIGURE 3 Spool Lock & Spring Cap Spool Spacer Spool Note Wire Direction Spindle

10. Remove the contact tip and nozzle from the gun.

11. Turn the machine ON (“I”).

12. Straighten the gun cable assembly.

13. Depress the cold feed switch and feed welding wire through

the gun and cable. (Point the gun away from yourself and others while feeding wire). Release the cold feed switch after wire appears at the end of the gun.

14. Turn off the machine.

15. Replace the nozzle and contact tip. Refer to Figure B-4. Cut

the wire off so that 3/8” to 5/8” (10 - 15 mm) protrudes from the end of the tip.

16. Turn on the machine. The machine is now ready to weld.

FIGURE 4 CONTACT TIP WIRE ELECTRODE 3/8" to 5/8" Contact Tip To Work Distance (CTWD) OPERATION OPERATION Read and understand this entire section before operating your CrossLinc Remote. WELD-PAK 90i FC

GRAPHIC SYMBOLS USED IN THIS MANUAL

OPERATION snoituacerP ytefaS Do not attempt to use this equipment until you have thoroughly read all operating and maintenance manuals supplied with your equipment and any related welding machine it will be used with. They include important safety precautions, operating and maintenance instructions and parts lists. ELECTRIC SHOCK can kill.

• Do not touch electrically live parts such as output terminals or internal wiring.

• Insulate yourself from the work and ground.

• Always wear dry insulating gloves. or explosion.

• Do not weld upon containers which have held combustibles. ARC RAYS can burn.

• Wear eye, ear and body protection. FUMES AND GASES can be dangerous. Although the removal of the particulate matter from welding smoke may reduce the ventilation requirement, concentrations of the clear exhausted fumes and gases may still be hazardous to health. Avoid breathing concentrations of these fumes and gases. Use adequate ventilation when welding. See ANSI Z49.1, "Safety in Welding and Cutting", published by the American Welding Society. OPERATING MACHINE Once you have set machine up as per instructions, refer to Table B.1 and the Procedure Decal located on the inside of the wire drive compartment door of your machine for setup information, consumables, and quick tips for welding.

1. Select welding voltage (power), based on the material

thickness of the work piece, required on front panel

2. Select wire feed speed required on ‘wire speed’ knob

3. Ensure you are wearing the correct safety clothes &

equipment for welding (I.E Welding mask, gloves, apron etc) FIGURE 5

4. Connect the work clamp to the metal to be welded. The work

clamp must make good electrical contact to the work piece. The work piece must also be grounded as stated in Arc Welding Safety Precautions in the beginning of this manual.

5. Based on the weld joint type and orientation of the weld joint,

position the gun into the joint at the correct angle.

6. To begin welding, raise your hand shield or lower your

helmet to protect your eyes and pull the trigger.

7. While welding, travel at a constant speed and maintain an

electrode stickout of 3/8".

8. To stop welding, release the gun trigger.

9. When no more welding is to be done, turn off the machine.

Use of this unit on thicker materials than recommended may result in welds of poor quality. The welds may appear to be strong weld. This is called "Cold Casting" or "cold lapping" and is some what similar to a cold solder joint. Weld failure may result. Contact Tip (.035”) KH712 (.035” / 0.9MM) Drive Roll KP4364-035 Nozzle KH726 FCAW Wire

LINCOLN .030 NR-211-MP

WARNING WELD-PAK 90i FC Welding Wire Contact TipDrive RollHorizontal: "Drag"Tee JointMaintain an electrode Stickout of 3/8" while welding.Wire Feed Tension.035 (0.9mm) - Lincoln Part No. KH712The suggested Wire Feed Speed settings in the table below are based on a midrange wire tension setting. The tension may be changed if required to improved wire feeding; however, the WFS setting may have to be adjusted from the values in the table below.Do NOT weave the arc, neither forward, backward, or sideways FCAW -Gasless (Flux Cored) .035 Lincoln NR-211-MP (Innershield Cored Wire)Loading The Wire Suggested Settings For WeldingRemember: Remove the contact tip prior to loading wireKeep tension on the wire to prevent unspooling.2. Release spring loaded pressure arm and rotate the Idle Roll Arm away from Drive Roll.3. Thread wire through the guide tube, over drive roll and into gun liner. Close Idle Roll arm.Weld at a Steady PaceHelpful HintsFor Horizontal Weld Joints, remember: "Drag if there’s Slag"Refer to Manual for Troubleshooting Poor Weld QualityRemove Slag with the Chipping Hammer to expose weldProper Gun Angles for common WeldJoint Types Direction of Welding AND Angle of Gun relative to Weld Direction Electrical Stickout CONTACT TIP ELECTRODE 3/8

• Turn the input power OFF at the welding power source before installation or changing drive rolls and/or guides.

• Do not touch electrically live parts.

• When inching with the gun trigger, electrode and drive mechanism are "hot" to work and ground and could remain energized several seconds after the gun trigger is released.

• Do not operate with covers, panels or guards re moved or open.

• Only qualified personnel should perform maintenance work.

ITEMS REQUIRING NO MAINTENANCE

• Drive Motor and Gearbox – Lifetime lubrication

• BEFORE EACH USE - Check over machine and accessories for any obvious condition that may prevent safe performance or operation. Repair or replace items as necessary to correct any abnormal condition. AFTER 5 MINUTES OF WELDING OR WHEN SPATTER ACCUMULATES ON THE CONTACT TIP:

• CLEANING TIP AND NOZZLE - With the power switch in the off position, keep the contact tip and nozzle clean to avoid arc bridging between them. Bridging can result in a shorted nozzle, poor welds and an overheated gun. Hint: Anti-stick spray or gel, available from a welding supplier, may reduce buildup and aid in spatter removal. TROUBLESHOOTING

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. This Troubleshooting Guide is provided to help you locate and repair possible machine malfunctions. Simply follow the three- step procedure listed below. Step 1. LOCATE PROBLEM (SYMPTOM). Look under the column labeled “PROBLEM (SYMPTOMS).” This column describes possible symptoms that the machine may exhibit. Find the listing that best describes the symptom that the machine is exhibiting. Step 2. POSSIBLE CAUSE. The second column labeled “POSSIBLE CAUSE” lists the obvious external possibilities that may contribute to the machine symptom. Step 3. RECOMMENDED COURSE OF ACTION This column provides a course of action for the Possible Cause, generally it states to contact you local Lincoln Authorized Field Service Facility. If you do not understand or are unable to perform the Recommended Course of Action safely, contact your local Lincoln Authorized Field Service Facility.

• Turn off machine at the disconnect switch on the rear of the machine and remove main power supply connections before doing any troubleshooting. WARNING WARNING WARNING TROUBLESHOOTING WELD-PAK 90i FC 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 Lincoln Authorized Service Facility for technical troubleshooting assistance before you proceed.

Bead is too thick (inter- mittently). Travel speed is slow and/or inconsistent. Increase and maintain a constant travel speed. Output heat range is too high. Turn the voltage down. Bead does not penetrate base metal. Travel speed is inconsistent. Decrease and maintain a constant travel speed. Output heat range is too low. Turn the voltage up. Wire sputters and sticks to workpiece. The wire is damp. Change to dry wire. Be sure wire is stored in a dry location Wire feed speed (WFS) is too fast. Reduce WFS. Edge of weld has ragged depressions. Travel speed is too fast. Reduce travel speed. WFS is too fast. Reduce WFS. Output heat range is too high. Set the Low – High Heat Range switch to Low or the Fine Heat Adjustment to (1). DIAGRAMS AC1 AC2

The operation of welding fume control equipment is affected by various factors including proper use and positioning of the equipment, maintenance of the equipment and the specific welding procedure and application involved. Worker exposure level should be checked upon installation and periodically thereafter to be certain it is within applicable OSHA PEL and ACGIH TLV limits.Manuel de l’opérateur WELD-PAK 90i FC À utiliser avec les numéros de produit suivants :

MANUEL OU PAR CETTE MACHINE