Miller Electric NT 450, NT 500 manual Panel, Rear With Components

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. Hardware is common and not	3	4
. Hardware is common and not		4
available unless listed.		5
	2	6
	2
	1

7

10

8

9

803 936-A

Figure 8-4. Panel, Rear With Components

Item	Dia.	Part	Description	Quantity
No.	Mkgs.	No.	Description	Quantity
			Figure 8-4. Panel, Rear With Components (Fig 8-1Item 9)

. . . 1 . . .	. . . . . . .	. . . . . 173 283	. . CHAMBER, PLENUM 14 IN	. . .	1
. . . 2 . . .	. . . . . . .	. . . . . 180 165	. . BLADE, FAN 14 IN 3WG 28DEG .375 BORE CCW	. . .	1
. . . 3 . . .	. . . . . . .	. . . . . 162 807	. . PANEL, REAR	. . .	1
. . . 4 . . .	. . . . . . .	. . . . . 168 343	. . HINGE, DOOR PRIMARY	. . .	2
. . . 5 . . .	. . . . . . .	. . . . +162 818	. . DOOR, ACCESS PRIMARY	. . .	1
. . . 6 . . .	. . . . . . .	. . . . . 217 733	. . LABEL, WARNING ELECTRIC SHOCK & INPUT POWER (EN/FR)	.	1
. . . 6 . . .	. . . . . . .	. . . . . 179 290	. . LABEL, WARNING ELECTRIC SHOCK INPUT CONNECTION CE W		1
. . . 7 . . .	. . . . . . .	. . . . . 602 177	. . SCREW, SET .250-20 X .250KNRLPT SCH STL	. . .	2
. . . 8 . . .	. . . . . . .	. . . . . 124 274	. . BRACKET, MTG FAN MOTOR	. . .	1
. . . 9 . . . . . FM		. . . . . 208 402	. . MOTOR, 1/12HP 230V 1550RPM 50/60HZ .83A	. . .	1
. . . 10 . . .	. . . . . . .	. . . . . 010 467	. . CONNECTOR, CLAMP CABLE 1.250	. . .	1

+When ordering a component originally displaying a precautionary label, the label should also be ordered.

To maintain the factory original performance of your equipment, use only Manufacturer’s Suggested Replacement Parts. Model and serial number required when ordering parts from your local distributor.

OM-2252 Page 36

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Contents OM-2252218 084R ProcessesDescription File Multiprocess WeldingFrom Miller to You Table of Contents Page Symbol Usage Arc Welding HazardsElectric Shock can kill HOT Parts can cause severe burnsFumes and Gases can be hazardous ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal or Dirt can injure eyesWelding Wire can cause injury Fire or Explosion hazardFalling Unit can cause injury Moving Parts can cause injuryPrincipal Safety Standards California Proposition 65 WarningsEMF Information About Implanted Medical DevicesSymboles utilisés UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux DES Pièces Chaudes peuvent provoquer des brûlures gravesLE Soudage peut provoquer un in cendie ou une explosion LE Bruit peut endommager l’ouïe LES Bouteilles peuvent exploser si elles sont endommagéesRisque D’INCENDIE OU D’EXPLO- Sion LA Chute DE L’APPAREIL peut blesserLES Fils DE Soudage peuvent provoquer des blessures Proposition californienne 65 AvertissementsLE Soudage À L’ARC risque de provoquer des interférences Information EMF Principales normes de sécuritéEn ce qui concerne les implants médicaux OM-2252 General Precautionary Label − DefinitionsNameplate Safety Symbols Input Connection LabelElectric Shock And Airflow Label ? aSpecifications − InstallationDuty Cycle And Overheating CC Mode CV ModeVolt-Ampere Curves 100 200 300 400 500 600Selecting a Location Movement460 mm 460 mm OM-2252Dimensions And Weights DimensionsWeight 376 lb 171 kg Holes EFrontDo not move or operate unit where it could tip Turn Off power before connecting to receptacleTipping VAC Receptacle And Circuit BreakersConnecting Weld Output Cables Weld Output Terminals And Selecting Cable SizesConnecting Remote Control Turn off power before conRemote 14 Receptacle Information SocketElectrical Service Guide Placing Jumper LinksConnecting Input Power Welding Power Source Input Power ConnectionsDisconnect Device Input Power Connec- tions = GND/PE Earth Ground− Operation ControlsLift-Arc TIG Procedure For CC/CV Models Meter Functions For CC/CV Models− Maintenance & Troubleshooting Routine MaintenanceDisconnect power before maintaining Disconnect input power be- fore opening rear access doorHelp 3 Display Voltmeter/Ammeter Help DisplaysHelp 7 Display Troubleshooting Trouble RemedyWork like a Pro − Electrical Diagram Circuit Diagram For Dimension NT218 081-F − Parts List Main AssemblyTHERMISTOR, NTC 10K OHM @ 25 DEG C 34IN Lead Panel, Front With Components 264Panel, Front With Components -1Item IGBT/Capacitor Assembly IGBT/Capacitor Assembly -1item 221Panel, Rear With Components Page Work like a Pro Your distributor also gives ServiceSupport To locate a Distributor or Service Agency visit Miller Electric Mfg. CoFor assistance in filing or settling claims, contact Your distributor and/or equipment manufacturer’s