Miller Electric Blu-Fab 3500 Maintenance and Troubleshooting, Routine Maintenance, Months

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SECTION 6 − MAINTENANCE AND TROUBLESHOOTING

6-1. Routine Maintenance

Y Disconnect power before maintaining.

. Maintain more often during severe conditions.

3 Months

Replace unreadable labels.

Clean and tighten weld terminals.

Repair or replace cracked weld cable.

Repair or replace cracked gas hose.

Replace o-ring in Electrode/Gas

Output receptacle if cracked.

6 Months

Blow out or vacuum inside.

OR

6-2. Troubleshooting





	Trouble			Remedy

	No weld output; fan does not run.			Place line disconnect switch in On position (see Section 4-4).

				Check and replace line fuse(s), if necessary, or reset circuit breaker (see Section 4-4).

				Check for proper input power connections (see Section 4-4).

	No weld output; fan on.			Check and replace if necessary.

				Tighten wire feeder connection to Remote 14 receptacle.

				Unit overheated. Allow unit to cool (see Section 3-3).

	Fan not operating; weld output			Check for and remove anything blocking fan movement.
	available.
	available.			Have Factory Authorized Service Agent check fan motor.
				Have Factory Authorized Service Agent check fan motor.

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Contents Processes OM-221 677CDescription 2006−07From Miller to You Table of Contents Standards DirectivesMarks a special safety message Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killFire or Explosion hazard Welding Wire can cause injuryFalling Unit can cause injury Overuse can cause OverheatingAbout Pacemakers Principal Safety StandardsEMF Information Electric shock can kill − DefinitionsFalling unit can cause injury Duty Cycle Chart Specifications− Introduction Included with Your UnitTypical MIG Connections − InstallationSelecting a Location Remote 14 Receptacle RC1 Electrical Service GuideConnecting Input Power Aligning Wire Guide And Drive Rolls Connecting Welding Gun And Weld CableInstalling Wire Guide And Drive Roll Controls − OperationFront Panel Back PanelRun-In Control and Burnback Control Panel ControlsRun-In Control Burnback ControlRoutine Maintenance − Maintenance and TroubleshootingTroubleshooting MonthsOM-221 677 Section Electrical DiagramMain Assembly Main Assembly Wire Feed Assembly Dia Part Description Qty Mkgs Wire Drive Assembly All Models Page Page Effective January 1 ITW Welding Products Italy S.r.l. Via Privata Iseo, 6/E Owner’s Record