Miller Electric Blu-Fab 3500, 4500 Series owner manual Operation, Controls, Front Panel, Back Panel

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SECTION 5 − OPERATION

5-1. Controls

1 Power Switch

1

2 3

4

5

6

The power switch is a selector knob which permits selection of operation on either of the two available ranges (I and II) and the center position is off.

2 Indicator Lamp

This lights up when the power switch is placed in the ON position.

3 Protection Fuse

Fuse F protects the control circuit. Should it become necesary to re- place any fuse in the welding power source, be sure to substitute with one of the same size and rating.

4Use this control to adjust weld voltage 10 position switch. 20 weld setting, 10 high range (I), 10 low range (II).

5High Temperature Shutdown Light

This lights up when unit overheats and shuts down.

6 Voltage/Amperage Meter.

Use toggle switch to select voltage or amperage.

7Low Inductance Negative Output Terminal

Connect work lead here for most “short-arc” applications.

8High Inductance Negative Terminal

Connect work lead here for stainless steel and spray arc conditions.

9 115 AC Receptacle (optional)

Located on the rear panel is a recep- tacle which provides power to the gas heater, when welding with CO2 shielding gas and for the cooling sys- tem.

10Wire Feeder Power Cable Receptacle

Located on the rear panel is a recep- tacle used to supply operating power to the wire feed unit.

11 Positive Out Terminal

78

Front Panel

9

10

11

115 VAC

Back Panel

OM-221 677 Page 11

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Contents 2006−07 OM-221 677CProcesses 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 eyesOveruse can cause Overheating Welding Wire can cause injuryFire or Explosion hazard Falling Unit can cause injuryPrincipal Safety Standards EMF InformationAbout Pacemakers Electric shock can kill − DefinitionsFalling unit can cause injury Included with Your Unit SpecificationsDuty Cycle Chart − Introduction− Installation Selecting a LocationTypical MIG Connections Electrical Service Guide Connecting Input PowerRemote 14 Receptacle RC1 Connecting Welding Gun And Weld Cable Installing Wire Guide And Drive RollAligning Wire Guide And Drive Rolls Back Panel − OperationControls Front PanelBurnback Control Panel ControlsRun-In Control and Burnback Control Run-In ControlMonths − Maintenance and TroubleshootingRoutine Maintenance TroubleshootingOM-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