Lincoln Electric IM794 manual Operation, Saftey Precautions, General Description

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OPERATION

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SAFTEY PRECAUTIONS

Read entire operation section before operating the SP-170T.

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.

FUMES AND GASES can be dangerous.

• Keep your head out of fumes.

• Use ventilation or exhaust to remove fumes from breathing zone.

WELDING SPARKS can cause fire or explosion.

• Keep flammable material away.

• Do not weld on closed containers.

ARC RAYS can burn eyes and skin.

Wear eye, ear and body protec- tion.

Observe all safety information throughout this manual.

GENERAL DESCRIPTION

The SP-170T is a complete semiautomatic constant voltage DC portable arc welder. Included is a tap- switch controlled, single phase constant voltage trans- former/rectifier power source and a wire feeder with welding gun for feeding .023" (0.6 mm) through .030" (0.8 mm) solid steel electrode. Optional kits are avail- able for .035" (0.9 mm) and .045" (1.2 mm) Innershield® NR-211-MP.

It is ideally suited for individuals having access to 230 or 208 volt 60 Hz AC input power and want the ease of use, quality and dependability of both gas metal arc welding or GMAW (also known as MIG welding) and the Innershield® process (self-shielded flux-cored or FCAW). A convenient chart is mounted inside the wire feed section door for setting welding procedures for 24 gauge (.60 mm) through 5/16" (8.0 mm) mild steel. The machine is rugged and reliable and has designed for dependable service and long life.

RECOMMENDED PROCESSES

The SP-170T can be used for welding mild steel using the GMAW, single pass, process which requires a supply of shielding gas or it can be used for the self- shielded, Innershield® process (FCAW).

OPERATIONAL FEATURES AND CONTROLS

The SP-170T has the following controls as standard: Power ON/OFF Switch, Voltage Control, Wire Speed Control, Trigger Switch, and a Circuit Breaker.

DESIGN FEATURES AND

ADVANTAGES

Reconnect table for 230 volt or 208 volt single phase 60 Hz input power.

“Cold electrode” until gun trigger is pressed for an added measure of safety.

Overload protection — incorporates both a thermo- stat and a circuit breaker.

Quality wire drive with electronic overload protec- tion.

“Quick Release” idle roll pressure arm is easily adjusted.

SP-170T

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Contents SP-170T Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcPlease Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTable of Contents Installation Technical Specifications SP-170TSafety Precautions Identify and Locate ComponentsOutput Connections Work Clamp InstallationSelect Suitable Location StackingConnecting Gun Cable to the SP-170T GUN InstallationWork Cable Installation GAS ConnectionInput Connections Figure A.5Volt Input Connection Line Cord ConnectionElectrical Input Connection for Rated Output Operation Saftey PrecautionsDesign Features Advantages General DescriptionLimitations Controls and SettingsWelding Capability Sequence of Operation Wire LoadingWelding Operations Friction Brake Adjustments Wire ThreadingMaking a Weld Cleaning Tip And NozzleProcess Guidelines Overload Protection Changing Machine Over to Feed Other Wire SizesWelding with Gmaw MIG Application Chart K586-1 Deluxe Adjustable Gas Regulator & Hose Kit AccessoriesOptional Accessories K549-1 .035 0.9 mm Innershield Welding KitInnershield Fcaw Conversion Replacement PartsFactory installed gun liner will feed .025-.035 0.6-0.9mm Routine Maintenance MaintenanceMaintenance Safety Precautions For Magnum 100L GUN GUN and Cable MaintenanceConfiguration of Components in Wire Feeding System Contact Tip Cable Liner Drive RollChanging Drive Roll Component Replacement ProceduresChanging the Contact TIP Changing Liner Liner trim lengthGUN Handle Parts Figure D.3Troubleshooting HOW to USE Troubleshooting GuideProblems Possible Symptoms Cause Recommended Course of ActionFeeding Problems Welding Problems Wiring Diagrams SP-170T Precaucion Warnung