Miller Electric M-10 Gun, 180, 140 Auto-Set manual Troubleshooting Table, Trouble Remedy

Page 44

.A complete Parts List is available on-line at www.MillerWelds.com

6-8. Troubleshooting Table

 

 

 

 

 

 

 

 

 

 

 

Trouble

 

 

Remedy

 

 

No weld output; wire does not feed; fan

Secure power cord plug in receptacle (see Section 4-7or 4-8).

does not run.

 

 

 

Replace building line fuse or reset circuit breaker if open.

 

 

 

 

 

 

 

Place Power switch in On position (see Section 5-2, 5-1, or 5-3).

 

 

 

 

 

Reset welding power source supplementary protector if open.

 

 

No weld output; wire does not feed; fan

Thermostat TP1 open (overheating). Allow fan to run with gun trigger switch off; thermostat closes when

motor continues to run.

unit has cooled (see Section 6-3).

 

 

 

 

 

Secure gun trigger plug (see Section 4-1).

 

 

 

 

 

Release gun trigger and cycle unit power off and back on again.

 

 

No weld output; wire feeds.

Connect work clamp to get good metal to metal contact.

 

 

 

 

 

Replace contact tip (see Section 6-5).

 

 

 

 

 

Check for proper polarity connections (see Section 4-5).

 

 

 

 

 

Check thumbscrew securing gun end to feed head adapter and tighten if necessary.

 

 

Low weld output.

Connect unit to proper input voltage or check for low line voltage.

 

 

 

 

 

Place Power switch in On position (see Section 5-2, 5-1, or 5-3).

 

 

Electrode wire feeding stops during

Straighten gun cable and/or replace damaged parts.

welding.

 

 

 

Adjust drive roll pressure (see Section 4-11).

 

 

 

 

 

 

 

Change to proper drive roll groove (see Section 6-4).

 

 

 

 

 

Readjust hub tension (see Section 4-10).

 

 

 

 

 

Be sure that wire is positioned in proper drive roll groove and wire is laying in the groove.

 

 

 

 

 

Replace contact tip if blocked (see Section 6-5). Oversized tip may be required for some wires.

 

 

 

 

 

Clean or replace wire inlet guide or liner if dirty or plugged (see Section 6-4or Section 6-6).

 

 

 

 

 

Replace drive roll or pressure bearing if worn or slipping (see Section 6-4).

 

 

 

 

 

Secure gun trigger plug (see Section 4-1).

 

 

 

 

 

Check and clear any restrictions at drive assembly and liner (see Section 6-4or Section 6-6).

 

 

 

 

 

Release gun trigger and allow gun and motor protection circuitry to reset.

 

 

 

 

 

Have nearest Factory Authorized Service Agent check drive motor.

 

 

 

 

 

OM-225 311 Page 40

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Contents OM-225 311C ProcessesDescription File MIG GmawFrom Miller to You Table of Contents − Maintenance &TROUBLESHOOTING − Parts ListSymbol Usage Marks a special safety messageArc Welding Hazards Electric Shock can killARC Rays can burn eyes and skin Welding can cause fire or explosionFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Indique un message de sécurité particulier UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux LE Soudage peut provoquer un incendie ou une explosion DES Particules Volantes peuvent blesser les yeuxDES Pièces Chaudes peuvent provoquer des brûlures graves LE Bruit peut endommager l’ouïeRisque D’INCENDIE OU D’EXPLO LA Chute DE L’APPAREIL peut blesser’EMPLOI Excessif peut SUR DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaques− Specifications SpecificationsVAC Model VAC Model w/Auto−SetEDuty Cycle And Overheating 115 VAC Model230 VAC Model OverheatingVolt-Ampere Curves AmperageIncorrect − InstallationInstalling Welding Gun Changing Polarity Work Cable Routing Inside UnitProcess/Polarity Table Installing Gas Supply Special installation may be Required where gasoline orVolatile liquids are present − See NEC Article 511 or CECDo not move or operate unit where it could tip Input Voltage 230 Input Amperes At Rated Output Electrical Service Guide For 230 VAC ModelInstalling Wire Spool And Adjusting Hub Tension Threading Welding Wire Remove gun nozzle and contact tipEnd Of Wire To Spool Removing MIG Gun From Welding Power SourceCut Off End Of Wire Open Pressure Assembly Knob Installing Optional Spool Gun Switch In Welding Power Source OperationConnecting Spool Gun To Millermatic 140/180 − Operation Controls For 115 VAC Model w/Auto-SetEControls For 115 VAC Model 115VControls For 230 VAC Model 230VOM-225 311 Weld Parameter Chart For 115 VAC Model w/Auto−SetE 10/90 10/65 10/80 10/60 10/50 10/95 10/75 10/100 030 0.8 mm 035 0.9 mm Aluminum 100% Argon 4043ER10/32 OM-225 311 10/90 10/45 10/60 10/30 10/32 10/80 030 0.8 mm 035 0.9 mm#220179 #220179 #202926Dcep Dcen 100 10/60 10/45 10/40 10/20 10/50 024 0.6 mm #220179 030 0.8 mm #202926 035 0.9 mm 045 1.2 mm− Maintenance &TROUBLESHOOTING Routine MaintenanceOverload Protection Drive Motor ProtectionReplacing Gun Contact Tip Changing Drive Roll Or Wire Inlet GuideTurn Off power before replacing contact tip To Reassemble Gun Cleaning Or Replacing Gun LinerDisconnect gun from unit Replacing Switch And/Or Head Tube Troubleshooting Table Trouble RemedyOM-225 311 − Electrical Diagram Circuit Diagram234 419-B − MIG Welding Gmaw Guidelines Typical MIG Process ConnectionsTypical MIG Process Control Settings Wire Recommendation Wire SpeedSelect Wire Size Select VoltageHolding And Positioning Welding Gun Conditions That Affect Weld Bead Shape Gun Movement During Welding Poor Weld Bead CharacteristicsGood Weld Bead Characteristics Possible Causes Corrective Actions Troubleshooting − Excessive SpatterTroubleshooting − Porosity Troubleshooting − Incomplete Fusion Troubleshooting − Excessive PenetrationTroubleshooting − Lack Of Penetration Troubleshooting − Distortion Troubleshooting − Burn-ThroughTroubleshooting − Waviness Of Bead Flat & Horizontal1 Fillet Common MIG Shielding GasesApplication − Parts List Recommended Spare PartsOptional Drive Rolls OptionsPage Service SupportOwner’s Record Miller Electric Mfg. Co
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