Lincoln Electric 170I manual Operation, General Description, Design Features Advantages

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OPERATION

 

B-1

 

B-1

 

 

 

 

 

 

 

SAFETY PRECAUTIONS

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 contain- ers.

ARC RAYS can burn eyes and skin.

•Wear eye, ear and body protec-

tion.

See additional warning information at front of this opeerator’s manual.

GENERAL DESCRIPTION

The Handymig 170i is a complete semiautomatic con- stant voltage DC portable arc welder. Included is a tap-switch controlled, single phase constant voltage transformer/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 available for .035" (0.9 mm) and .045" (1.2 mm) Innershield® NR-211-MP.

It is ideally suited for individuals having access to 240 volts 50 Hz AC input power and want the ease of use, quality and dependability of both gas metal arc weld- ing 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 Handymig 170i 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 with the self-shielded, Innershield® process (FCAW).

OPERATIONAL FEATURES AND CONTROLS

The Handymig 170i has the following controls as stan- dard: Power ON/OFF Switch, Voltage Control, Wire Speed Control, Trigger Switch, and a Circuit Breaker.

DESIGN FEATURES AND

ADVANTAGES

•“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 protection.

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

•Reversible, dual groove drive roll, shipped ready to feed .023"/.025" (0.6 mm) diameter wire. The drive roll is easily reversed to feed .030" (0.8 mm) diame- ter solid wire and .035" (0.9 mm) flux-cored diameter wire. Optional drive roll included in .045" (1.2 mm) Innershield® welding kit must be installed to feed

.045" (1.2 mm) flux-cored wire.

•No external shielding gas is required when used with Liquid Arc steelcore 71T-GS electrode.

•Spindle accommodates both 8 in. (200 mm) diameter and 4 in. (100 mm) diameter spools of wire.

Handymig 170i

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Contents Handymig Safety For Engine powered equipmentElectric and Magnetic Fields may be dangerous Electric Shock can kill ARC Rays can burnFumes and Gases can be dangerous IiiCylinder may explode if damaged Welding Sparks can cause fire or explosionInstructions for ELECTRO- Magnetic Compatibility Assessment of AreaPlease Examine Carton and Equipment For Damage Immediately Table of Contents Viii Section DSection E Section FInstallation Technical Specifications HandymigSafety Precautions Identify and Locate ComponentsWork Clamp Installation Select Suitable LocationOutput Connections StackingGUN Installation Work Cable InstallationConnecting Gun Cable to the Handymig GAS ConnectionInput Connections Figure A.5Electrical Input Connection For Rated Output Line Cord ConnectionDesign Features Advantages Operational Features and ControlsOperation General DescriptionWelding Capability Controls and SettingsLimitations Welding Operations Wire LoadingSequence of Operation Wire Threading Figure B.4Process Guidelines Cleaning Tip And NozzleMaking a Weld Changing Machine Over to Feed Other Wire Sizes Welding with Gmaw MIGWelding with Fcaw Innershield Shielding GasOverload Protection Learning to WeldLearning to Weld SELF-SHIELDED Fcaw Welding ARC Gmaw MIG Welding ARCCommon Metals Process SelectionJoint Types and Positions Penetration Welding In The Vertical PositionFillet Welds Machine SET UP for the SELF-SHIELDED Fcaw Process Welding Techniques for the SELF- Shielded Fcaw ProcessVertical-down Welding Correct Welding PositionCorrect Electrical Stickout ESO Correct Welding SpeedHelpful Hints PracticeMachine SET UP for the Gmaw MIG Process Welding Techniques for the Gmaw MIG ProcessFor the Handymig 170i, use the following Troubleshooting Welds To Eliminate a Ropy Convex BeadTo Correct Poor Penetration in order of impor- tance To Eliminate Stubbing* in order of importanceProper Gun Handling Application Chart Routine Maintenance MaintenanceGUN and Cable Maintenance Changing the Contact TIP Component Replacement ProceduresChanging Drive Roll GUN Handle Parts Changing LinerLiner trim length Ground Test Procedure 1TROUBLESHOOTINGE-1 HOW to USE Troubleshooting GuideTroubleshooting Troubleshooting GuideProblems Possible Areas Symptoms Misadjustments Recommended Course of ActionAuthorized Field Service Facility Contact your local Liquid ArcWelding Problems Wiring Diagrams Handymig 170i Wiring Diagram CodePrecaucion Warnung Copyright 2000 Lincoln Global Inc
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