Miller Electric OM-220 390F manual Installing And Threading Welding Wire

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5-6. Installing And Threading Welding Wire

Install wire spool. Adjust tension nut so			Install wire guides and
wire is taut when wire feed stops.			anti-wear guide.

		Pressure
		Indicator
	Pressure	Scale
	Adjust
	Rear	Pressure
	Rolls	Pressure
	Rolls	Adjust
		Adjust
		Front
		Rolls

No Wire Slip

NONCONDUCTIVE

SURFACE

Drive Rolls

Gun Cable

End Of Liner

Install drive rolls.

Wire Slips

NONCONDUCTIVE

SURFACE

Tools Needed:

3/16, 5/64 in

15/16, 3/8 in

. Be sure that outlet cable has proper size			. For soft wire or small diameter stainless	. To adjust drive roll pressure, hold nozzle
liner for the welding wire size. When			steel wire, reduce drive roll pressure on	about 2 in (51 mm) from nonconductive
installing gun,	position	liner	the rear roll to half that of the front rolls.	surface and press gun trigger to feed wire
extending from outlet wire guide as				against surface. Tighten knob so wire
close as possible to drive rolls without				does not slip. Do not overtighten. If
touching.				contact tip is completely blocked, wire
				should slip at the feeder (see pressure

	Install gun. Lay gun cable out straight. Cut off	adjustment above).Cut wire off. Close
	Install gun. Lay gun cable out straight. Cut off	cover.
	end of wire. Push wire through guides up to	cover.
	end of wire. Push wire through guides up to
	drive rolls; continue to hold wire. Press Jog
	button to feed wire out gun.
		Ref. 156 929-A / Ref. 150 922 / Ref. 156 930 / 802 954 / S-0627-A

OM-220 390 Page 15

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Contents File Advanced Manufacturing Systems OM-220 390FProcesses DescriptionFrom Miller to You Table of Contents Directives Decwire2/04Standards 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 EMF Information Principal Safety StandardsAbout Pacemakers LES Fumées ET LES GAZ peuvent être dangereux UNE Décharge Électrique peut entraîner la mortIndique un message de sécurité particulier DES 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 sécurité− Definitions Disconnect input plug or power before working on machineKeep your head out of the fumes Manufacturer’s Rating Label For CE Products Symbols And DefinitionsSelecting a Location − InstallationSpecifications − IntroductionConnection Diagram Rear Panel Connections And Rotating Drive Assembly Gun Recommendation Table Pin Network Receptacle InformationInstalling And Threading Welding Wire Net Wait Feeder Display At Power UpDual Schedule Switch Option Power Source Upper Display Lower Display Voltage RangeOperational Terms − OperationPower Switch See Front Panel SectionsSee Section Upper Display Program Push ButtonAmps LED Lower DisplayAdjust Knob Feeder Set Up Push ButtonProcessSetup Process Set Up Push ButtonJog/Purge switch provides the following functions Jog/Purge Push Button Adjust Knob Gun Trigger ReceptacleJog/Purge Accu-pulse Reset ModePulse Mild SteelSequence Parameters In a Program − Setting Sequence ParametersSequence Parameters Routine Maintenance − MaintenanceDiagnostics Indicates a trigger Closed errorDisconnect power before troubleshooting TroubleshootingTrouble Remedy OM-220 390 Circuit Diagram − Electrical Diagram211 005-E − Fig 21 − Fig 10-2 − Parts ListPart Description Quantity Control Box PLG4 Drive Assembly, Wire -1Item Drive Assembly, Wire1.2 mm Metric1.4 mm Page Page Page Your distributor also gives ServiceSupport Your distributor and/or equipment manufacturer’s To locate a Distributor or Service Agency visitMiller Electric Mfg. Co For assistance in filing or settling claims, contact