Miller Electric CST 250 VRD manual Heat Sink Assembly, Output Diode

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				803 159-C
			Figure 8-5. Heat Sink Assembly, Output Diode
Item	Dia.	Part	Description	Quantity
No.	Mkgs.	No.	Description	Quantity
			Figure 8-5. Heat Sink Assembly, Output Diode

. . . 1 . . .	. . . . . . .	205916	. . HEAT SINK,DIODE OUTPUT	. . . 1
. . . 2 . . D1,D2 .		223422	. . KIT,DIODE ULTRA−FAST RECOVERY	. . . 2
. . . 3 . . . SR1 . .		201530	. . KIT,DIODE FAST RECOVERY BRIDGE	. . . 1
. . . 4 . . . HD1 . .		191941	. . TRANSDUCER,CURRENT	. . . 1
. . . 5 . . R2,C6 .		196510	. . RESISTOR/CAPACITOR	. . . 1
. . . 6 . . R1,C5 .		207384	. . RESISTOR/CAPACITOR, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
. . . 7 . . . RT1 . .		199798	. . THERMISTOR,NTC 30K OHM @ 25 DEG C 18IN LEAD	. . . 1
. . . 8 . . .	. . . . . . .	. 049611	. . TUBING,COP .540 OD X .123 WALL X .687	. . . 1
. . . 9 . . .	. . . . . . .	207932	. . INSULATOR,HEATSINK	. . . 1
. . . 10 . . .	. . . . . . .	108942	. . SCREW,250−20X1.25 HEXWHD.61D GR5 PLD	. . . 1
. . . 11 . . .	. . . . . . .	602 062	. . SCREW,004−40X .37 PAN HD−PHL STL PLD CONE SEMS	. . . 5
. . . 12 . . .	. . . . . . .	070427	. . SCREW,008−32X .50 SOC HD−HEX GR8 PLD	. . . 7
. . . 13 . . .	. . . . . . .	602200	. . WASHER,LOCK .168IDX0.293ODX.040T STL PLD SPLIT #8	. . . 7

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-220 812 Page 35

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Contents OM-220 812B ProcessesDescription From Miller to You Table of Contents Page Electric 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 eyesCalifornia Proposition 65 Warnings Principal Safety Standards EMF InformationAbout Pacemakers LES Fumées ET LES GAZ peuvent être dangereux Signification des symboles− Consignes DE Sécurité − À Lire Avant Utilisation LES Décharges Électriques peuvent être mortellesLE Bruit peut affecter l’ouïe LE Soudage peut causer un incen- die ou une explosionLES Particules Projetées peu- vent blesser les yeux LES Pièces Chaudes peuvent cau- ser des brûlures gravesLES Pièces Mobiles peuvent cau- ser des blessures Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peut FairePrincipales normes de sécurité Information sur les champs électromagnétiquesConsignes relatives aux stimulateurs cardiaques − Installation SpecificationsDuty Cycle And Overheating DC Amps Stick Smaw Volt-Ampere CurvesTIG Gtaw Volt-Ampere Curve Dimensions And Weight Selecting a LocationLocation And Airflow Terminals Amperes Weld Output Terminals And Selecting Cable Sizes150 ft 200 ft 250 ft 350 ft 400 ft 45 m 60 m 70 m 90 m 105 m 120 mPositive + Weld Output Terminal Input Voltage Electrical Service Guide50/60 Hz Single-Phase 50/60 Hz Three-Phase Stick Dcep Direct Current Electrode Positive ConnectionsSelecting 220 Volts AC Single/Three Phase Input Voltage Relinking Board Connection For 400 440 VAC Input Power Selecting 400 440 Volts AC Three Phase Input Voltage= GND/PE Connecting Input PowerFor three-phase operation For single-phase operationControls − OperationLift-ArctTIG Normal Process Select ControlApplication Stick Start Procedure − Scratch Start TechniqueLift-ArcStart Procedure Lift-Arc StartRack Mounting Amp Adjust ControlRemote 14 Receptacle Information Fan-On-DemandMonths − Maintenance and TroubleshootingRoutine Maintenance Blowing Out Inside Of UnitTrouble Possible Causes Remedy TroubleshootingUse proper size and type of weld cable see Section Circuit Diagram − Electrical DiagramsSafety Information About Tungsten − Selecting and Preparing Tungsten ElectrodeSelecting Tungsten Electrode Tungsten Electrode OM-220 812 Main Assembly − Parts ListCAPACITOR,ELCTLT 2400 UF 500 VDC can 2.5 DIA Panel, Front w/Components Panel, Rear w/Components Magnetics Subassembly Heat Sink Assembly, Output Diode Base Assembly Heat Sink Assembly, Input Page Support ServiceMiller Electric Mfg. Co Owner’s Record