Lincoln Electric 170I manual Welding Operations, Sequence of Operation, Wire Loading

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B-3

 

OPERATION

 

B-3

 

 

 

 

 

 

WELDING OPERATIONS

SEQUENCE OF OPERATION

Wire Loading

Refer to Figure B.2 and B.3.

The machine power switch should be turned to the OFF (“O”) position before working inside the wire feed enclosure.

The machine is shipped from the factory ready to feed 8” (200 mm) diameter spools [2.2” (56 mm) max. width]. These spools fit on a 2” (50 mm) diameter spindle that has a built-in adjustable friction brake to prevent overrun of the spool and excess slack in the wire.

Note:When loading and removing the 8” Spools make sure that the wing nut (inside the wire spool spindle hub) is turned 90° from the wire spool spindle locking tab. If the wing nut is positioned in line with the locking tab, the tab cannot be depressed to load or unload the wire spool.

FIGURE B.2

Wire Spool Spindle

8” Wire Spool

Be sure that this stud engages the hole in the wire spool.

To Wire Drive

Wire Spool must be pushed all the way on the spindle so that the spindle’s tab will hold it in place. The Wire Spool will rotate clock- wise when wire is dereeled.

Load an 8” (200 mm) diameter spool on the wire spool spindle shown in Figure B.2.

To use 4” (100 mm) diameter spools, the 2” (50 mm) diameter spindle must be removed (See Figure B.3). Remove the wing nut and spacer at the end of the shaft and remove the outside plastic wire spool spin- dle. The spindle can be stored in the wire feed com- partment. A 4” (100 mm) diameter spool is mounted directly on the 5/8” (16 mm) diameter shaft and held in place with the previously removed hardware. Also make certain the start end of the wire, which may pro- trude through the side of the spool does not contact any metallic case parts.

FIGURE B.3

Wire Spindle Shaft

4" Wire Spool

 

Wing Nut and Spacer

To wire drive

Note: The brake should be adjusted with a spool of wire installed. When properly adjusted it should move freely but not coast.

CAUTION

Some spools can have the start wire protruding from the side of the spool. This must be insulated from internal metal components otherwise electri- cal grounding faults will result and the machine will be seriously damaged.

Friction Brake Adjustments

1.With wire spool installed, check free movement and coast of the spool.

2.To tighten the brake turn the wing nut clockwise in 1/4 turn increments until coasting stops.

3.To loosen the brake turn the wing nut counter- clockwise in 1/4 turn increments until the wire spool moves freely without coasting.

Handymig 170i

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Contents Handymig Safety For Engine powered equipmentElectric and Magnetic Fields may be dangerous Fumes and Gases can be dangerous Electric Shock can killARC Rays can burn 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 Section E ViiiSection D Section FInstallation Technical Specifications HandymigSafety Precautions Identify and Locate ComponentsOutput Connections Work Clamp InstallationSelect Suitable Location StackingConnecting Gun Cable to the Handymig GUN InstallationWork Cable Installation GAS ConnectionInput Connections Figure A.5 Electrical Input Connection For Rated Output Line Cord ConnectionOperation Design Features AdvantagesOperational Features and Controls General DescriptionControls and Settings Welding CapabilityLimitations Wire Loading Welding OperationsSequence of Operation Wire Threading Figure B.4Cleaning Tip And Nozzle Process GuidelinesMaking a Weld Welding with Fcaw Innershield Changing Machine Over to Feed Other Wire SizesWelding with Gmaw MIG Shielding GasLearning to Weld Overload ProtectionLearning to Weld SELF-SHIELDED Fcaw Welding ARC Gmaw MIG Welding ARCProcess Selection Common MetalsJoint Types and Positions Welding In The Vertical Position PenetrationFillet Welds Vertical-down Welding Machine SET UP for the SELF-SHIELDED Fcaw ProcessWelding Techniques for the SELF- Shielded Fcaw Process 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 To Correct Poor Penetration in order of impor- tance Troubleshooting WeldsTo Eliminate a Ropy Convex Bead To Eliminate Stubbing* in order of importanceProper Gun Handling Application Chart Maintenance Routine MaintenanceGUN and Cable Maintenance Component Replacement Procedures Changing the Contact TIPChanging Drive Roll Changing Liner GUN Handle PartsLiner trim length Ground Test Procedure 1TROUBLESHOOTINGE-1 HOW to USE Troubleshooting GuideProblems Possible Areas Symptoms Misadjustments TroubleshootingTroubleshooting Guide 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