Miller Electric TM-353E manual Routine Maintenance, Months, Circuit Breaker CB1

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SECTION 7 – MAINTENANCE

7-1.	Routine Maintenance
		Y Disconnect power before maintaining.
	3 Months
	Replace	Repair Or	Clean And
	Unreadable	Replace	Tighten
	Labels	Cracked	Weld
		Weld	Terminals
		Cables
	Adjust Spark		Replace
	Gaps		Replace
	Gaps		Cracked
			Cracked
			Parts
	14-Pin Cord	Gas Hose	Torch Cable
	6 Months
		Blow Out Or Vacuum
	OR	Inside,
	OR	During Heavy Service,
		Clean Monthly
7-2.	Circuit Breaker CB1

1 Circuit Breaker CB1

If CB1 opens, output to the 115 volts ac duplex receptacle, high frequen- cy, and gas flow stop. Press button to reset breaker.

1

CB1

Ref. ST-154 795-C

Syncrowave 250

TM-353 Page 37

Image 41

Contents SyncrowaveR Table of Contents Declaration of Conformity For European Community CE Products Page Symbol Usage Safety Precautions for ServicingMarks a special safety message Servicing HazardsAbout Pacemakers EMF InformationDefinitions + + +Rating Label For CE Products ISO/IECSome symbols are found only on CE products Symbols And DefinitionsSpecifications InstallationVolt-Ampere Curves 220 230 260 380 415 460Overheating Duty Cycle And Overheating60% Duty Cycle At 200 Amperes Movement Location And Airflow Dimensions And WeightsSelecting a Location Tipping Be careful when placing or moving unit over uneven surfacesWeld Output Terminals And Selecting Cable Sizes ARC Welding can cause Electromagnetic InterferenceRemote 14 Receptacle Turn Off power before connecting to receptacleVolts AC Duplex Receptacle And Shielding Gas Connections SocketAll values calculated at 60% duty cycle Electrical Service GuideCheck label inside your unit- only one label is on unit Placing Jumper Links And Connecting Input PowerControls OperationMeters Output Selector SwitchApplication Crater Time ControlsSpot Time Controls Balance Control AC Gtaw Setting Output WaveformsAC Balance Control Output Contactor Control Switch Amperage Adjustment ControlsFor AC And DC Smaw Welding Arc ControlsPostflow Time Control Preflow Time Control Optional High Frequency ControlsSCR Theory of OperationHD1 Troubleshooting Table TroubleshootingNecessary parts Dition of contacts. Replace CR5 if necessary Contacts. Replace CR2 if necessary Troubleshooting Circuit Diagram For Welding Power Source HD1 location See -1 forV24 D, EGnd Waveforms For SectionAC Output, 100 Amperes, 24 Volts AC Re- sistive Load Control Board PC1 Testing Information Use With Section Reference for gate pulse to SCR4 RC54 Not used Control Board PC1 Test Point ValuesReceptacle Pin Value Remote Board PC2 Testing Information Use With Section RC3 Meter Calibration Input Voltage Labels And Connections Routine Maintenance MaintenanceMonths Circuit Breaker CB1Fuses F1 And F2 Adjusting Spark GapsTurn Off power before adjusting spark gaps High Frequency HF Welding Processes Using HFSources Of HF Radiation From Incorrect Installation Correct Installation Model Serial Or Style Number Circuit Diagram Wiring Diagram Electrical DiagramsSC-114 SC-120 SC-121 SC-124 SC-124 785-B SC-132 697-A SC-137 SC-135 SC-142 SC-148 SC-154 649-C SC-178 SC-179 303-A SC-181 109-E SC-188 161-A Syncrowave TM-353 TM-353 SD-188 162-A TM-353 SD-187 644 1 TM-353 SD-187 644 2 SA-121 SA-044 725-C TM-353 Description Main Assembly Parts ListPLG51 114 BASE, Prior to KE727074 170 Panel, Front w/Components Panel, Front w/ Components Rectifier, Si Diode -1 Item Panel, Mtg Components -1 Item Control Panel, Lower Front 126 Capacitor ASSEMBLY, Eff w/JK537589 thru JK690986 C14 124 COIL, HF coupling Eff w/JK572898 thru KF959378 174 Optional Equipment Page Miller