Miller Electric R-115 manual Motor Start/Burnback Control

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3-19. Motor Start/Burnback Control

1

2

3

Tools Needed:

Non-Conductive

To change wire feed starting speed proceed as follows:

Turn Off unit and welding power source.

Remove wrapper.

1Motor Board PC1

2Motor Start Control Potentiometer R73

Remove protective white rubber cap before making adjustment. Adjust potentiometer R73 using a small nonconductive screwdriver. Rotate potentiometer clockwise to increase time it takes the motor to ramp up to speed.

3 Burnback Potentiometer R42

Remove protective white rubber cap before making adjustment. Adjust potentiometer R42 using a small nonconductive screwdriver. Rotate potentiometer clockwise to increase burnback time.

Reinstall wrapper.

1/4 in	Ref. 802 310 / 192 653

OM-193 471 Page 19

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Contents

File MIG Gmaw OM-193 471PProcesses DescriptionFrom Miller to You Table of Contents Page Electric Shock can kill Symbol UsageMarks a special safety message Arc Welding HazardsBuildup of GAS can injure or kill ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal can injure eyesCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Signifie Note n’est pas relatif à la sécurité UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux Indique un message de sécurité particulierDES Pièces Chaudes peuvent provoquer des brûlures graves LE Soudage peut provoquer unIncendie ou une explosion DES Particules Volantes peuvent blesser les yeuxDES Organes Mobiles peuvent provoquer des blessures Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peut SUREn ce qui concerne les stimulateurs cardiaques Principales normes de sécuritéPower SpecificationsWelding Power WireShielding gas pressure not to exceed 100 PSI 689 kPa Equipment Connection DiagramsRear Panel Connections And Power Switch Location Gun Recommendation TableConnecting Welding Gun And Weld Cable Installing Wire Guide And Drive Roll Wood Installing And Threading Welding WireMove lead 38 at terminal block For welding power sources reGround lead must be wrapped Quiring dry contact closureAccording to -9before Make ground lead connectionsTo Terminal E Lead For Welding power sourcesBlack Tools Needed RedWhite White Lead Motor Start/Burnback Control Optional Side Panel Controls Front Panel ControlsOverload Protection Routine MaintenanceMonths Trouble Remedy Troubleshooting− Electrical Diagram − Parts List PLG4 Hardware is common Drive Assembly, Wire -2 ItemDrive Roll & Wire Guide Kits OM-193 471 OM-193 471 OM-193 471 Support ServiceMiller Electric Mfg. Co Owner’s Record