Lincoln Electric IM767 specifications 4OPERATIONB-4, Friction Brake Adjustment, Wire Threading

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B-4OPERATIONB-4

FIGURE B.3

FIGURE B.4

 

Wire Spindle Shaft

4" Wire Spool

 

Wing Nut

To wire drive

and Spacer

 

Friction Brake Adjustment

With wire spool installed on the spindle shaft and the wing nut loose, turn the spool by hand while slowly tightening the wing nut until a light drag is felt. Tighten the wing nut an additional 1/4 turn.

Note: When properly adjusted, the brake should pro- vide only enough drag to prevent overrun of the spool and excess slack in the wire. Too much drag may result in wire feeding problems, and may cause pre- mature wear of wire drive system components.

2

5

1

4

3

The Wire Drive Feed

Roll can accommodate

 

two wire sizes by flipping

 

the wire drive feed roll

 

over. The sizes are sten-

 

ciled on the drive roll.

6.The idle roll pressure adjustment wing nut is factory set to approximately five full turns from where the wing nut first engages the threads of the pressure arm (1). If feeding problems occur because the wire is flattened excessively, turn the pressure adjust- ment counter-clockwise to reduce distortion of the wire. Slightly less pressure may be required when using 0.023 – 0.025" (0,6 mm) wire. If the drive roll slips while feeding wire, the pressure should be increased until the wire feeds properly.

Wire Threading

Refer to Figure B.4

1.Release the Spring Loaded Pressure Arm (1) rotate the Idle Roll Arm (2) away from the Wire Feed Drive Roll (3). Ensure that the visible, sten- ciled size on the drive roll matches the wire size being used.

2.Carefully detach the end of the wire from the spool. To prevent the spool from unwinding, do not release the wire until after step 5.

3.Cut the bent portion of wire off and straighten the first 4” (100 mm).

4.Thread the wire through the In-going guide tube (4), over the drive roll (3), and into the out-going guide tube (5).

5.Close the idle roll arm (2) and latch the spring loaded pressure arm (1) in place (now you may release the welding wire).

WARNING

When inching the welding wire, the drive rolls, the gun connector block and the gun contact tip are always energized relative to work and ground and remain energized several seconds after the gun trigger is released.

7.Refer to Figure B.5. Remove gas nozzle and con- tact tip from end of gun.

8.Turn the WELDMARK 135 PLUS ON (“I”).

9.Straighten the gun cable assembly.

10.Depress the gun trigger switch and feed welding wire through the gun and cable. (Point gun away from yourself and others while feeding wire.) Release gun trigger after wire appears at end of gun.

Note: If the wire will not feed smoothly, or if the wire feed motor shuts off unexpectedly, see the "FEEDING PROBLEMS" section of the "TROU- BLESHOOTING GUIDE" in this manual.

11.Replace contact tip and gas nozzle.

12.Refer to Figure B-6. Cut the wire off 1/4” – 3/8” (6 – 10 mm) from the end of the tip. The WELD- MARK 135 PLUS is now ready to weld.

WELDMARK 135 PLUS

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Contents Weldmark 135 Plus California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéOn-Line Product Registration Please Examine Carton and Equipment For Damage ImmediatelyTable of Contents Technical Specifications Weldmark 135 Plus InstallationElectric Shock can kill Safety PrecautionsIdentify and Locate Components Work Cable Installation Work Clamp InstallationSelect Suitable Location StackingGAS Connection GUN InstallationConnecting Gun Cable to the Weldmark 135 Plus Gas Solenoid Inlet Fitting Input ConnectionsInput CableRequirements For Maximum Output Code Requirements for Input ConnectionsRequirements For Rated Output Operation Observe all safety information throughout this manualFumes and Gases can be dangerous Welding Sparks can cause fire or explosionDesign Features Advantages Controls and SettingsGeneral Description Welding CapabilitySequence of Operation Wire LoadingWelding Operations 4OPERATIONB-4 Friction Brake AdjustmentWire Threading Making a Weld Shielding GasProcess Guidelines Changing Machine Over to Feed Other Wire SizesCleaning Tip And Nozzle Overload Protection Wire Feed Overload ProtectionOutput Overload Thermal ProtectionLearning to Weld Learning to WeldARC-WELDING Circuit SELF-SHIELDED Fcaw Welding ARCProcess Selection Gmaw MIG Welding ARCJoint Types and Positions Common MetalsFor Gmaw MIG Process For Fcaw Innershield ProcessFillet Welds Welding In The Vertical PositionPenetration 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 Weldmark 135 PLUS, use Following To Eliminate a Ropy Convex Bead in order of importance Troubleshooting WeldsTo Correct Poor Penetration in order of impor- tance To Eliminate Stubbing* in order of importanceProper Gun Handling Application Chart K586-1 Deluxe Adjustable Gas Regulator Hose Kit AccessoriesOptional Accessories Innershield Fcaw Conversion Replacement PartsMaintenance Safety Precautions MaintenanceItems Requiring no Maintenance Routine and Periodic MAINTE- NanceConfiguration of Components in Wire Feeding System GUN and Cable MaintenanceFor Magnum 100L GUN Contact Tip Cable Liner Drive RollChanging Drive Roll Changing the Contact TIPLiner trim length for gun with red trigger Magnum 100L Changing LinerGUN Handle Parts HOW to USE Troubleshooting Guide TroubleshootingOutput Problems Troubleshooting GuideRecommended Course of Action Problems Possible Symptoms CauseGAS Flow Problems SP-135PLUSWIRINGWIRINGDIAGRAMDIAGRAMS Wiring DiagramsWeldmark 135 Plus Precaucion Warnung Manufactured by Lincoln Electric Company
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