Lincoln Electric 170I manual GUN Installation, GAS Connection, Work Cable Installation

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A-4

 

INSTALLATION

 

A-4

 

 

 

 

 

 

Work Cable Installation

Refer to Figure A.2.

1.Open the wire feed section door on the right side of the Handymig 170i.

2.Pass the end of the work cable that has the termi- nal lug with the smaller hole through the Work Cable Access Hole (1) in the case front.

3.Route the cable under and around the back of the Wire Feed Gearbox (6).

4.For GMAW Only: Refer to Figure A.2. As deliv- ered, the machine is connected for positive elec- trode polarity. This is the appropriate configuration for the GMAW (MIG) process. To complete installa- tion, use the provided wing nut to connect the work cable’s terminal lug to the negative (–) output ter- minal (5) located above the Wire Feed Gearbox

(6). Make sure that both wing nuts are tight.

5.For Innershield Only: Refer to Figure A.4. To wire for negative polarity (required for the Innershield process), connect the short cable attached to the connector block (1) to the negative (–) output termi- nal (2) and the work cable (3) to the positive (+) ter- minal (4).

FIGURE A.4

4

3

2

1

GUN INSTALLATION

As shipped from the factory, the Handymig 170i gun is ready to feed .023" – .025"(.6mm) solid wire. If .030" (0.8 mm) solid wire is to be used, change the contact tip to the appropriate size.

NOTE: If .035" or .045" (0.9 mm or 1.2 mm) Innershield flux-cored wire is to be used, the appropri- ate Innershield kit is required.

Connecting Gun Cable to the Handymig 170i.

1.Refer to Figure A.2. Unplug the machine or turn power switch to the OFF “O” position.

2.Pass the insulated terminals of the gun trigger con- trol leads, one at a time, through the Gun Cable and Control Lead Access Slot (2) in the case front. The leads are to be routed up the inside of the case front, behind the gas line.

3.Insert the connector on the gun conductor cable through the Gun Cable Access Hole (2) in the Handymig 170i case front. Make sure the connec- tor is all the way in the brass connector block to obtain proper gas flow. If the gun connector will not fully insert, unscrew the thumbscrew on the con- nector block a few turns. Rotate the connector so control leads are on the underside and tighten the Thumbscrew on the connector block.

4.Connect the gun trigger control lead terminals to the two insulated 1/4" (6,4 mm) tab terminal con- nector bushings located above the “Gun Trigger Connection” decal in the wire feed section (4). Either lead can go to either connector.

CAUTION

If the gun trigger switch being used is other than that supplied, the switch must be a normally open, momentary switch. The terminals of the switch must be insulated from the welding circuit. Malfunction of the Handymig 170i may result if this switch shorts to the Handymig 170i welding output circuit or is common to any electrical cir- cuit other than the Handymig 170i trigger circuit.

GAS CONNECTION

The Handymig 170i is supplied with a mixed gas Regulator and a 3m gas hose. A cylinder of an appro- priate shielding gas must be obtained from your gas distributor.

Handymig 170i

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Contents Handymig For Engine powered equipment SafetyElectric and Magnetic Fields may be dangerous ARC Rays can burn Electric Shock can killFumes and Gases can be dangerous IiiWelding Sparks can cause fire or explosion Cylinder may explode if damagedAssessment of Area Instructions for ELECTRO- Magnetic CompatibilityPlease Examine Carton and Equipment For Damage Immediately Table of Contents Section D ViiiSection E Section FTechnical Specifications Handymig InstallationIdentify and Locate Components Safety PrecautionsSelect Suitable Location Work Clamp InstallationOutput Connections StackingWork Cable Installation GUN InstallationConnecting Gun Cable to the Handymig GAS ConnectionFigure A.5 Input ConnectionsLine Cord Connection Electrical Input Connection For Rated OutputOperational Features and Controls Design Features AdvantagesOperation General DescriptionWelding Capability Controls and SettingsLimitations Welding Operations Wire LoadingSequence of Operation Figure B.4 Wire ThreadingProcess Guidelines Cleaning Tip And NozzleMaking a Weld Welding with Gmaw MIG Changing Machine Over to Feed Other Wire SizesWelding with Fcaw Innershield Shielding GasOverload Protection Learning to WeldLearning to Weld Gmaw MIG Welding ARC SELF-SHIELDED Fcaw Welding ARCCommon Metals Process SelectionJoint Types and Positions Penetration Welding In The Vertical PositionFillet Welds Welding Techniques for the SELF- Shielded Fcaw Process Machine SET UP for the SELF-SHIELDED Fcaw ProcessVertical-down Welding Correct Welding PositionCorrect Welding Speed Correct Electrical Stickout ESOPractice Helpful HintsWelding Techniques for the Gmaw MIG Process Machine SET UP for the Gmaw MIG ProcessFor the Handymig 170i, use the following To Eliminate a Ropy Convex Bead Troubleshooting WeldsTo 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 HOW to USE Troubleshooting Guide 1TROUBLESHOOTINGE-1Troubleshooting Guide TroubleshootingProblems Possible Areas Symptoms Misadjustments Recommended Course of ActionContact your local Liquid Arc Authorized Field Service FacilityWelding Problems Handymig 170i Wiring Diagram Code Wiring DiagramsPrecaucion Warnung Copyright 2000 Lincoln Global Inc
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