Lincoln Electric IM767 specifications Welding Operations, Sequence of Operation, Wire Loading

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OPERATION

B-3

B-3

1

2

WELDING AMP RANGE 25-125

3

FIGURE B.1a

4.Circuit Breaker – Protects machine from damage if maximum output is exceeded. Button will extend out when tripped (Manual reset). Refer to Figure B.1b.

5.Gun Trigger - Activates welding output, wire feed, and gas solenoid operation. Releasing the trigger deactivates welding and simultaneously activates the “burnback” function so that the welding wire does not stick in the weld puddle.

6.Optional K695-2 Spot/Stitch Controls (see ACCES- SORIES section) - If present, replaces Blank Panel Assembly located on the center panel inside the case door:

Mode Switch - Selects between Spot, Stitch, or Seam (normal welding) mode. Spot mode welds for an adjustable length of time (set by Time Control; see below) and then stops, whenever the gun trig- ger is depressed and held. Stitch mode cycles between welding and not welding for an adjustable length of time (also set by Time Control) while the gun trigger is depressed. In Seam mode the machine will weld continuously while the gun trig- ger is depressed. Releasing the gun trigger in any of the three modes will interrupt welding immedi- ately.

Time Control - In Spot mode, controls spot mode ON time between approximately .25 and 4.0 sec- onds. In Stitch mode, controls stitch mode ON time and OFF time simultaneously between .25 and 4.0 seconds each. This control is deactivated while in Seam mode.

FIGURE B.1b

4

5

+

-

WELDING OPERATIONS

SEQUENCE OF OPERATION

Wire Loading

Refer to Figure B.2 AND B3.

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 4” (100 mm) diameter spools. A 4" (100 mm) diameter spool is mounted directly on the 5/8" (16 mm) diame- ter spindle that has a built-in adjustable friction brake to prevent overrun of the spool and excess slack in the wire. The wing nut at the end of the shaft is used to adjust the tension on the wire spool (See B.3 on the following page).

To use 8" (200 mm) diameter spools, the 2" (51 mm) diameter M15445 spindle must be used. Remove the spacer and wing nut at the end of the shaft. Insert spindle as shown in figure B.2. Reattach spacer and wing nut.

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.

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.2

Wire Spool Spindle

Locking Tab

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 must rotate clockwise when wire is dereeled.

WELDMARK 135 PLUS

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Contents Weldmark 135 Plus 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 Weldmark 135 PlusIdentify and Locate Components Safety PrecautionsElectric Shock can kill Work Clamp Installation Work Cable InstallationSelect Suitable Location StackingConnecting Gun Cable to the Weldmark 135 Plus GUN InstallationGAS Connection Input Connections Gas Solenoid Inlet FittingInput CableRequirements For Rated Output Code Requirements for Input ConnectionsRequirements For Maximum Output Observe all safety information throughout this manual OperationFumes and Gases can be dangerous Welding Sparks can cause fire or explosionControls and Settings Design Features AdvantagesGeneral Description Welding CapabilityWelding Operations Wire LoadingSequence of Operation Wire Threading Friction Brake Adjustment4OPERATIONB-4 Shielding Gas Making a WeldCleaning Tip And Nozzle Changing Machine Over to Feed Other Wire SizesProcess Guidelines Wire Feed Overload Protection Overload ProtectionOutput Overload Thermal ProtectionLearning to Weld Learning to WeldARC-WELDING Circuit SELF-SHIELDED Fcaw Welding ARCGmaw MIG Welding ARC Process SelectionCommon Metals Joint Types and PositionsFor Gmaw MIG Process For Fcaw Innershield ProcessPenetration 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 Weldmark 135 PLUS, use Following Troubleshooting Welds To Eliminate a Ropy Convex Bead in order of importanceTo Correct Poor Penetration in order of impor- tance To Eliminate Stubbing* in order of importanceProper Gun Handling Application Chart Optional Accessories AccessoriesK586-1 Deluxe Adjustable Gas Regulator Hose Kit Replacement Parts Innershield Fcaw ConversionMaintenance Maintenance Safety PrecautionsItems Requiring no Maintenance Routine and Periodic MAINTE- NanceGUN and Cable Maintenance Configuration of Components in Wire Feeding SystemFor Magnum 100L GUN Contact Tip Cable Liner Drive RollChanging the Contact TIP Changing Drive RollGUN Handle Parts Changing LinerLiner trim length for gun with red trigger Magnum 100L Troubleshooting HOW to USE Troubleshooting GuideTroubleshooting Guide Output ProblemsProblems Possible Symptoms Cause Recommended Course of ActionGAS Flow Problems Wiring Diagrams SP-135PLUSWIRINGWIRINGDIAGRAMDIAGRAMSWeldmark 135 Plus Precaucion Warnung Manufactured by Lincoln Electric Company
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