Miller Electric SS-74S16, SS-74D12, SS-74S12, and SS-74D16 Installing And Threading Welding Wire

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4-11. Installing And Threading Welding Wire

	Tools Needed:
3/16, 5/64 in	15/16, 3/8 in

Pressure

Adjust

Install drive rolls.

Install wire spool. Ad- just tension nut so wire is taut when wire feed stops.

Pressure

Indicator

Scale

Install wire guide.

Pressure

Adjust

Drive Rolls

Gun Cable

End Of Liner

NONCONDUCTIVE

SURFACE

No Wire Slip

.Be sure that outlet cable has proper size

liner for the welding wire size. When installing gun, position liner extending from outlet wire guide as close as possible to drive rolls without touching.

Install gun. Lay gun cable out straight. Cut off end of wire. Push wire through guides up to drive rolls; continue to hold wire. Press Jog button to feed wire out gun.

NONCONDUCTIVE

SURFACE

Wire Slips

.For soft wire or small diameter stainless . To adjust drive roll pressure, hold nozzle

steel wire, reduce drive roll pressure on	about 2 in (51 mm) from nonconductive
the rear roll to half that of the front rolls.	surface and press gun trigger to feed wire
	against surface. Tighten knob so wire
	does not slip. Do not overtighten. If con-
	tact tip is completely blocked, wire should
	slip at the feeder (see pressure adjust-
	ment above).Cut wire off. Close cover.

152 648-A / 803 020 / 802 966 / Ref. 137 391-A / 802 954 / Ref. S-0627-A

OM-1500−11 Page 14

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Contents Description OM-1500-11 207 750KProcesses File MIG GmawFrom Miller to You Table of Contents Page Arc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can killFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion Buildup of GAS can injure or killCalifornia Proposition 65 Warnings Principal Safety Standards EMF InformationAbout Pacemakers UNE Décharge Électrique peut entraîner la mort LES Fumées ET LES GAZ peuvent être dangereuxIndique un message de sécurité particulier DES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer unIncendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures graves’EMPLOI Excessif peut SUR Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaquesRating SpecificationsInstalling Swivel Into Pipe Post 12 ft 3.7 m Boom 16 ft 4.9 m BoomAdjusting Control Tilt Bracket Installing Boom And Reel Support Installing Wire Guide Extension Equipment Connection DiagramControl Box Connections Pin Plug InformationPin Information Motor Speed Wire Type Wire Size Feed Speed Capability Removing Safety Collar And Adjusting BoomWire Type, Size, And Feed Speed Capability Table Gun Recommendation TableInstalling And Threading Welding Wire Rear roll to half that of the front rollsCurrent Detect Override OFF Factory Default S1-1 And S1-2 Setting Internal DIP SwitchesSetting Current Detect Override S1-1 Automatic Run-In OFF S1-1 And S1-2General Terms Cold Wire Jog Operational TermsPower Switch Jog/PurgeTrigger Hold Switch Routine Maintenance Disconnect power before maintainingMonths Diagnostics Indicated ErrorError Indications Troubleshooting Disconnect power before troubleshootingTrouble Remedy − Electrical Diagram − Parts List Quantity Control Box 070 Boom Assembly Boom Assembly -1Item Drive Assembly, Wire Drive Assembly, Wire -1Item Support, Hub & Reel Roll Drive Roll and Wire Guide KitsFraction Metric Kit RollOM-1500−11 Page Service SupportOwner’s Record Miller Electric Mfg. Co