Miller Electric S-74D, S-74S Routine Maintenance, Months, Disconnect power before maintaining

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SECTION 7 − MAINTENANCE

7-1. Routine Maintenance

Y Disconnect power before maintaining.

	3 Months
		Clean and	Repair	or
	Replace	tighten	Repair	or
	Replace	tighten	replace
	unreadable	weld	cracked
	labels.	terminals.	weld
			cable.
	Replace	Check	Check gas	Check gun
	cracked	14-pin cord.	hose and	Check gun
	cracked	14-pin cord.	hose and	cable.
	parts.		fittings.	cable.
	parts.		fittings.
	6 Months
	Blow out or vacuum	Or	Clean
	inside. During heavy		Clean
			drive rolls.

	service, clean
	service, clean
	monthly.
	Notes

OM-1500-10 Page 19

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Contents File MIG Gmaw OM-1500-10 207 748KProcesses DescriptionFrom Miller to You Table of Contents Standards DirectivesElectric 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 Indique un message de sécurité particulier UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux 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+ + Rating Label For CE Products Symbols And DefinitionsRating SpecificationsType of Input Welding Power Wire Feed Overall Site SelectionRear Panel Connections And Rotating Drive Assembly Gun Recommendation Table Wire Type, Size, And Feed Speed Capability TableMotor Speed Wire Type Wire Size Feed Speed Capability Pin Plug PLG12 InformationNonconductive Surface Installing And Threading Welding WireAutomatic Run-In OFF S1-1 And S1-2 Setting Internal DIP SwitchesSetting Current Detect Override S1-1 Current Detect Override OFF Factory Default S1-1 And S1-2Equipment DIP Switch Settings For Models With Meters Only Jog/Purge Power SwitchYou can adjust the preset volt Trigger Hold SwitchMonths Routine MaintenanceDisconnect power before maintaining Error Indications DiagnosticsIndicated Error Trouble Remedy TroubleshootingDisconnect power before troubleshooting − Electrical Diagram OM-1500-10 − Parts List Part Description Quantity Control Box Diagram Part Quantity Model Marking Description 74S 74D Drive Assembly, Wire PLG5 Roll Kit Drive Roll Drive Roll And Wire Guide Kits Wire Size GuideInletRoll Kit Drive Roll Fraction Metric Support ServiceMiller Electric Mfg. Co Owner’s Record