Miller Electric 255 warranty Front Panel Controls, Controls For Standard Units

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SECTION 3 – OPERATION

3-1. Front Panel Controls

Controls For Standard Units

1 Wire Speed Control

The scale around the control is percent, not wire feed speed.

1

2

2

Voltage Switch

 

 

Use control and Voltage Range

 

 

Selector (see Section 3-2) to set arc

 

 

voltage. Step 6 of Low range and

 

 

Step 1 of High range overlap.

 

 

3

Pilot Light

 

 

4

Power Switch

3

4

Ref. ST-171 639-C / Ref. ST-174 843-A

OM-157 066 Page 12

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Contents Auto ArcR M-25 Gun Page Table of Contents Page Marks a special safety message Symbol UsageArc Welding Hazards ARC Rays can burn eyes and skin Principal Safety Standards Fire or Explosion hazardEMF Information About PacemakersSpecifications WeightVolt-Ampere Curve Stainless SteelWelding Power Source Duty Cycle And Overheating Exceeding duty cycle can damage unit and void warrantyWelding Gun Duty Cycle And Overheating OverheatingInstalling Work Clamp Installing Gas SupplyRef. ST-800 921-C Setting Gun Polarity Positioning Jumper LinksElectrical Service Guide Selecting a Location And Connecting Input PowerThreading Welding Wire ScaleFront Panel Controls Controls For Standard UnitsDo not Switch Under Load Center Baffle ControlsWeld Parameter Chart OM-157 066 Routine Maintenance Disconnect powerMonths Circuit Breaker CB1Changing Drive Roll And Wire Inlet Guide Turn Off unit, and disconnect input powerFuses F1 And F2 Replacing Gun Contact TipDisconnect gun first Cleaning Or Replacing Gun LinerTo Reassemble Gun Replacing Switch And/Or Head Tube Remove handle locking nut Slide handleTroubleshooting Welding Trouble RemedyElectrical Diagram OM-157 066 Parts List 089 Baffle, Center w/Components Baffle, Center w/Components -1 Item Wire Drive And Gears Drive Roll And Wire Guide Kits Wire Drive And Gears -2 Item Panel, Rear w/Components Panel, Front w/Components Exploded View Of Gun Exploded View Of Gun Item Page Page Warranty Owner’s Record