Lincoln Electric SP-255 manual MAINTENANCED-3, GUN Handle Disassembly

Page 35

MAINTENANCED-3

GUN HANDLE

DISASSEMBLY

The internal parts of the gun handle may be inspected or serviced if necessary.

The gun handle consists of two halves that are held together with a collar on each end. To open up the handle, turn the collars approximately 60 degrees counterclockwise (the same direction as removing a right hand thread) until the collar reaches a stop. Then pull the collar off the gun handle. If the collars are difficult to turn, position the gun handle against a corner, place a screwdriv- er against the tab on the collar and give the screwdriver a sharp blow to turn the collar past an internal locking rib.

Counter-clockwise

MAGNUM 250SP GUN PARTS AND ACCESSORIES

Description

Part Number

English Size

Metric Size

 

 

 

 

 

CABLE LINER

 

 

 

 

For 15' (4.5 m) or shorter

M16087-1

 

.025-.030"

0.6-0.8 mm

Cable

M16087-1

*

.035-.045"

0.9-1.2 mm

 

M17714-1

❏

3/64"

1.2 mm

 

 

 

(Alum. wire)

(Alum. wire)

 

 

 

 

 

CONTACT TIPS

 

 

 

 

Standard Duty

S19391-6

 

.025"

0.6 mm

 

S19391-7

 

.030"

0.8 mm

 

S19391-1

*

.035"

0.9 mm

 

S19391-2

*

.045"

1.2 mm

Heavy Duty

S19392-1

 

.035"

0.9 mm

 

S19292-2

 

.045"

1.2 mm

Tapered

S19393-5

 

.025"

0.6 mm

 

S19393-6

 

.030"

0.8 mm

 

S19393-1

 

.035"

0.9 mm

 

S19393-2

 

.045"

1.2 mm

Tab (For Aluminum)

S18697-46

❏

3/64 (Alum Wire)

1.2 mm

GAS NOZZLES

 

 

 

 

Fixed (Flush)

M16081-1

 

3/8"

9.5 mm

 

M16081-2

*

1/2"

12.7 mm

 

M16081-3

 

5/8"

15.9 mm

Fixed (Recessed)

M16080-1

 

3/8"

9.5 mm

 

M16080-2

 

1/2"

12.7 mm

Requires:

M16080-3

 

5/8"

15.9 mm

 

 

 

 

Gas Diffuser As’bly

S19418-3

 

.025-.045

0.6-1.2 mm

Adjustable Slip-On

M16093-2

 

1/2"

12.7 mm

Requires:

 

 

 

 

Nozzle Insulator As’bly

S19417-1

 

 

 

Requires:

 

 

 

 

Gas Diffuser As’bly

S19418-2

 

.025-.030"

0.6-0.8 mm

 

S19418-1

 

.035-.045"

0.9-1.2 mm

Gasless Nozzle (For

M16938

Δ

 

 

Innershield)

 

 

 

 

 

 

 

 

 

GUN TUBE ASSEMBLIES

 

 

 

 

Standard (60°)

S18920

*

 

 

45°

S19890

❏

 

 

 

 

 

 

 

*Included with Idealarc SP-255.

❏Included with K673-1 3/64" (1.2 mm) Aluminum Feeding kit.

5356 alloy aluminum wire is recommended to alleviate potential soft wire feed- ing problems with push-type wire feeding.

ΔRequires S19418-1 Gas Diffuser Assembly.

IDEALARC SP-255

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Contents Idealarc SP-255 Safety Depends on YouCalifornia Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Master Table of Contents for ALL Sections Appendix Section DSection E Section FTechnical Specifications Idealarc SP-255 INSTALLATIONA-1Uncrating the SP-255 2INSTALLATIONSafety Precautions Input Power and Grounding ConnectionsOutput Polarity Connection INSTALLATIONA-3GUN and Cable Installation Shielding GAS 4INSTALLATIONFumes and Gases can be dangerous OPERATIONB-1Limitations 2OPERATIONRecommended Processes and Equipment Welding CapabilityOPERATIONB-3 Start Mode SelectionsProcess WIRE/GAS KEY Typical Auto KEY Press Sequences Procedure Keys4OPERATION Auto KEYMemory Keys OPERATIONB-5Spot KEY Timer Keys6OPERATION Typical Memory Number KEY Press SequenceOPERATIONB-7 GUN Switch KeysTypical Toggle KEY Press Sequence 8OPERATIONTypical Activate KEY Press Sequence Using 4-STEP Trigger Interlock FunctionOPERATIONB-9 Step Trigger Interlock KeysWire Reel Loading GUN SwitchesWire Drive Roll Procedure for Changing Drive RollFeeding Electrode Idle Roll Pressure SettingOPERATIONB-11 To Start the Welder12OPERATION Making AN Auto Mode WeldOPERATIONB-13 Welding Thermal Overload Protection Wire Feed Overload ProtectionExplanation of Prompting and Error Messages 14OPERATIONOPERATIONB-15 Operation ACCESSORIESC-1 2ACCESSORIES Disabling Spool GUN ACCESSORIESC-3 Idealarc SP-255 Routine Maintenance MAINTENANCED-1Safety Precautions Cable CleaningLiner Removal Replacement 2MAINTENANCEMagnum 250SP GUN Parts and Accessories MAINTENANCED-3GUN Handle Disassembly Idealarc SP-255 HOW to USE Troubleshooting Guide TROUBLESHOOTINGE-1Authorized Field Service Facility 2TROUBLESHOOTINGTroubleshooting Guide Problems Possible Areas Symptoms MisadjustmentsTROUBLESHOOTINGE-3 Contact your local Lincoln 4TROUBLESHOOTINGAuthorized Field Service Facility Function Problems TROUBLESHOOTINGE-5Contact your local Lincoln Authorized Field Service Facility 6TROUBLESHOOTINGSP-255 Wiring Diagram L9688 Dual Voltage Wiring DiagramsWiring Diagrams Dimension Print Page Page Page Page $700.00 How To Read Shop DrawingsPrecaucion Warnung Limited Warranty
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