Miller Electric 255 warranty Setting Gun Polarity, Positioning Jumper Links

Page 13

2-9. Setting Gun Polarity

																				1 Polarity Changeover Label
																				Always read and follow manufac-
	1																			ture’s recommended polarity.
	1

Tools Needed:

3/4, 11/16 in

Ref. 190 821-A

2-10. Positioning Jumper Links

2	200 VOLTS
	230 VOLTS
	S-153 980

230 VOLTS

460 VOLTS

575 VOLTS

S-156 140

Check input voltage available at site.

1 Jumper Links Access Door

Open door.

2Jumper Link Label

3Jumper Links Location

Move jumper links to match input voltage, and label on unit.

Close and secure access door.

1

Tools Needed:

3/8 in	3
	Ref. ST-800 922-C

OM-157 066 Page 9

Image 13

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 Fire or Explosion hazard Principal Safety StandardsAbout Pacemakers EMF InformationWeight SpecificationsVolt-Ampere Curve Stainless SteelExceeding duty cycle can damage unit and void warranty Welding Power Source Duty Cycle And OverheatingWelding Gun Duty Cycle And Overheating OverheatingInstalling Gas Supply Installing Work ClampRef. ST-800 921-C Positioning Jumper Links Setting Gun PolaritySelecting a Location And Connecting Input Power Electrical Service GuideScale Threading Welding WireControls For Standard Units Front Panel ControlsCenter Baffle Controls Do not Switch Under LoadWeld Parameter Chart OM-157 066 Disconnect power Routine MaintenanceMonths Circuit Breaker CB1Turn Off unit, and disconnect input power Changing Drive Roll And Wire Inlet GuideFuses F1 And F2 Replacing Gun Contact TipDisconnect gun first Cleaning Or Replacing Gun LinerTo Reassemble Gun Remove handle locking nut Slide handle Replacing Switch And/Or Head TubeWelding Trouble Remedy TroubleshootingElectrical 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