Lincoln Electric UWW-170 manual GUN and Cable Maintenance, Contact Tip Cable Liner Drive Roll

Page 35

D-2

 

MAINTENANCE

 

D-2

 

 

 

 

 

GUN AND CABLE

MAINTENANCE

Gun Cable Cleaning

Clean cable liner after using approximately 300 lbs (136 kg) of solid wire or 50 lbs (23 kg) of flux-cored wire. Remove the cable from the wire feeder and lay it out straight on the floor. Remove the contact tip from the gun. Using low pressure air, gently blow out the cable liner from the gas diffuser end.

CAUTION

Excessive pressure at the start may cause the dirt to form a plug.

Flex the cable over its entire length and again blow out the cable. Repeat this procedure until no further dirt comes out.

Contact Tips, Nozzles, and Gun Tubes

1.Dirt can accumulate in the contact tip hole and restrict wire feeding. After each spool of wire is used, remove the contact tip and clean it by push- ing a short piece of wire through the tip repeatedly. Use the wire as a reamer to remove dirt that may be adhering to the wall of the hole through the tip.

2.Replace worn contact tips as required. A variable or “hunting” arc is a typical symptom of a worn con- tact tip. To install a new tip, choose the correct size contact tip for the electrode being used (wire size is stenciled on the side of the contact tip) and screw it snugly into the gas diffuser.

3.Remove spatter from inside of gas nozzle and from tip after each 10 minutes of arc time or as required.

4.Be sure the gas nozzle is fully screwed onto the diffuser for gas shielded processes. For the Innershield® process, the gasless nozzle should be screwed onto the diffuser.

5.To remove gun tube from gun, remove gas nozzle or gasless nozzle and remove diffuser from gun tube. Remove both collars from each end of the gun handle and separate the handle halves. Loosen the locking nut holding the gun tube in place against the gun end cable connector. Unscrew gun tube from cable connector. To install gun tube, screw the locking nut on the gun tube as far as possible. Then screw the gun tube into the cable connector until it bottoms. Then unscrew (no more than one turn) the gun tube until its axis is perpendicular to the flat sides of the cable connec- tor and pointed in the direction of the trigger. Tighten the locking nut so as to maintain the proper relationship between the gun tube and the cable connector. Replace the gun handle, trigger and dif- fuser. Replace the gas nozzle or gasless nozzle.

CONFIGURATION OF COMPONENTS IN WIRE FEEDING SYSTEM

 

Contact Tip

Cable Liner

Drive Roll

 

 

 

 

Components shipped with

S18704-2 (Installed)

S18704-5

KP665-035

SP 170-Iº

.030” (0.8mm)

.035”-.045”

2 Smooth grooves

 

 

(0.9-1.2mm)

Small .025” (0.6mm)

 

 

 

Large .030” (0.8mm)

Components shipped with

S18704-13

S18704-17

KP665-045C

UWW-170•

.045” (1.2mm)

.040” (1.0mm)

2 Knurled grooves

 

 

For Aluminum

Small .035” (0.9mm)

 

 

 

Large .045” (1.2mm)

 

 

 

 

ºIf other size wire feeding is desired use the additional Contact Tips shipped loose with your SP 170-I.

•It is important when changing between welding with steel wire and aluminum to exchange feeding components due to the lubricant applied to steel wire. Failure to do so may result in contaminated welds when welding aluminum.

SP-170-I

Page 34 Page 36
Image 35
Page 34 Page 36
Contents SP 170-I and UWW-170 California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéPlease Examine Carton and Equipment For Damage Immediately Thank YouTable of Contents Installation Electric Shock can kill 2INSTALLATIONA-2Safety Precautions Identify and Locate ComponentsStacking Select Suitable LocationLimitations Output ConnectionsGAS Connection GUN InstallationWork Cable Installation Connecting Gun Cable to the SPInput Connections Power Input Cable230 50/60 Line Cord ConnectionGeneral Description Design Features AdvantagesOperational Features and Controls OperationWelding Capability Controls and SettingsSequence of Operation Wire LoadingFriction Brake Adjustment Welding OperationsFigure B.4 Making a Weld Cleaning Tip And NozzleProcess Guidelines Overload Protection Changing Machine Over to Feed Other Wire SizesWelding with Gmaw MIG SELF-SHIELDED Fcaw Welding ARC Learning to WeldLearning to Weld ARC-WELDING CircuitFor Gmaw MIG Process Gmaw MIG Welding ARCProcess Selection Butt Welds Common MetalsJoint Types and Positions For Fcaw Innershield ProcessFillet Welds Welding In The Vertical PositionPenetration Correct Welding Position Machine SET UP for the SELF-SHIELDED Fcaw ProcessWelding Techniques for the SELF- Shielded Fcaw Process Vertical-down WeldingCorrect Welding Speed Correct Electrical Stickout ESOPractice Helpful HintsWelding Techniques for the Gmaw MIG Process Machine SET UP for the Gmaw MIG ProcessFor the SP 170-I, use the following To Eliminate Stubbing* in order of importance Troubleshooting WeldsTo Eliminate a Ropy Convex Bead in order of importance To Correct Poor Penetration in order of impor- tanceProper Gun Handling Drive Roll Orientation Application ChartOutput Polarity K491 .045 1.2 mm Innershield Welding Kit AccessoriesOptional Accessories K464 .035 0.9 mm Innershield Welding KitInnershield Fcaw Conversion Replacement PartsRoutine Maintenance MaintenanceMaintenance Safety Precautions Contact Tip Cable Liner Drive Roll GUN and Cable MaintenanceConfiguration of Components in Wire Feeding System Gun Cable CleaningChanging Drive Roll UWW-170 only Component Replacement ProceduresChanging Drive Roll SP 170-I only Fully seat the liner bushing into the con Changing LinerGUN Handle Parts red trigger GUN Handle Parts black triggerHOW to USE Troubleshooting Guide TroubleshootingRecommended Course of Action Problems Possible Areas Symptoms MisadjustmentsGAS Flow Problems Welding Problems Wiring WiringPage $700.00 How To Read Shop DrawingsNew Lessons in Arc Welding Need Welding Training?Precaucion Warnung
Top Page Image Contents