Hobart Welding Products 625 Troubleshooting Power Source, Check torch consumables, Is Temp Status

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.A complete Parts List is available at www.HobartWelders.com

6-4. Troubleshooting Power Source



	Is	Power switch	No	Place Power switch in the
	S1	in the On	No	Place Power switch in the
	S1	in the On		On position. (see Section
				On position. (see Section

position?	5-1).
	5-1).
	Yes

Does pilot arc ignite?

Yes

Does pilot arc

No

No

Press torch trigger and check if pilot arc ignites. Check torch consumables. *Check torch connections, air filter, pressure switch S3, valve AS1, air supply connection to unit, torch, and PC1.

Place torch near workpiece and check if pilot arc “jumps” or transfers to workpiece.

Check work clamp

Is Power light flashing?

No

Is Cup Status light On or flashing?

Yes	Reset Power switch S1.

	Check torch consumables/
Yes	cup. Reset Power switch
	S1. *Check torch connec-
	tions. *Check Control board
	PC1.

transfer to workpiece?

Yes

*

Check all connections, Check main transformer T1, Check boost inductor L1 and output inductor L2.

Return to beginning of chart.

connection. *Check Control board PC1 and connections, and torch and its connections.

No

NOTE: The fan will normally run for approximately 5 seconds after power switch is placed in the Off position (see Section 5-1).

Is Temp Status	Yes
light On?

No

Is Pressure Status	Yes
light On or flashing?

If unit is overheated, wait while fan cools down unit

temperature.

Turn Output control

fully counterclockwise (see Section 4-12). Check for gas/air flow at torch. *Check

Control board PC1, pressure switch, air filter, valve AS1, and air supply connection to unit and torch.

No

*Servicing procedure to be performed only by authorized Service Station.

OM-926 Page 25

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Contents Processes OM-926Description File Plasma CuttersFrom Hobart to You Table of Contents Page Marks a special safety message Symbol UsagePlasma Arc Cutting Hazards Cutting can cause fire or explosionFlying Sparks can cause injury Exploding Parts can injureARC Rays can burn eyes and skin Noise can damage hearingCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information LE Coupage présente un risque de feu ou d’explosion Signification des symbolesUNE Décharge Électrique peut entraîner la mort Identifie un message de sécurité particulierLE Bruit peut endommager l’ouïe Risque de blessure en casLES Fumées ET LES GAZ peuvent être dangereux LE Plasma D’ARC peut entraîner des blessuresDES Organes Mobiles peuvent provoquer des blessures DES Pieces Chaudes peuvent pro- voquer des brûlures gravesLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OUInformation sur les champs électromagnétiques Principales normes de sécuritéLE Coupage Ã L’ARC peut causer des interférence Consignes relatives aux stimulateurs cardiaquesI1eff − DefinitionsI1max Specifications − InstallationSpecifications For Torch Torch Dimensions And WeightMovement Do not move or operate unit where it could tip Unit Dimensions, Weight, And MovementDimensions And Weight Rear of Unit Connecting Work Clamp and Gas/Air Supply90-120 psi 50/60 Hz Single Phase Electrical Service GuideTime-Delay Extension Cord DataDo not move or operate unit where it could tip = GND/PE Selecting a Location And Connecting Input PowerAlways connect green or Prong Not UsedTerminal, never to a load TerminalsSetting Gas/Air Pressure Installing Alternative PlugSetting Gas/Air Pressure − Operation Pressure Gauge Pressure Adjustment KnobControls Cutting SpeedPilot arc starts immediately when trigger is pressed Trigger Safety LockWhen doing extended non-shielded Plasma Cutting System PracticesArea as possible Sequence Of Cutting OperationHold torch at approximately Angle to workpiece Sequence Of Gouging OperationCutting Sequence Of Piercing Operation Routine Maintenance − Maintenance & TroubleshootingShield Cup Checking Torch Shield Cup Shutdown SystemChecking/Replacing Retaining Cup, Tip, And Electrode Turn Off power source before checking torch partsCheck torch consumables Troubleshooting Power SourceIs Temp Status Light On? Is Pressure StatusTroubleshooting Torch Circuit Diagram − Electrical DiagramRecommended Spare Parts − Parts ListRecommended Spare Parts 195 110 ICE-40C 25ft Torch 195 111 ICE-40C 50ft Torch See -1for additional Consumable partsWork like a Pro Assistance ServiceSupport Hobart Welding Products Contact your Distributor for