Hobart Welding Products 625 manual Operation, Controls, Cutting Speed, Mild Steel Thicknessinches

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

SECTION 5 − OPERATION

5-1. Controls

4

5

1 Output Control

Use control to set cutting output.

Place control in Gas/Air Set position to safely adjust gas/air pressure. Only gas/air circuit is activated.

2Status Lights (See Section 6-2)

3Power Light

6

4 Power Switch

.The fan will normally run for approximately 5 seconds after power switch is placed in the Off position.

5Pressure Gauge

6Pressure Adjustment Knob

1

3

2

Ref. 211 048

.At ambient temperatures below −55 C (235 F), readjustment of gas/air pressure regulator may be necessary (see Section 4-12).

Use only clean, dry air with 90 to 120 psi (621 to 827 kPa) pressure. Prevent moisture from entering air supply at extreme cold temperatures.

5-2. Cutting Speed

	400
	350
Speed(in./min.)	300
	250
	200
	150

Cut	100
Cut
	50
	0
	16GA	1/8th	1/4th	3/8th	5/8th
	(0.060)
		Mild Steel Thickness(inches)

The cutting speed curve shows the recommended maximum cutting speed capabilities of the power source and torch for mild steel of various thickness.

The best cut quality is achieved by cutting near the chart line. Cutting below the line (too slow) will result in excess dross. Cutting above the line (too fast) will cause blowback and lack of penetration.

OM-926 Page 17

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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 Principal Safety Standards EMF InformationAbout Pacemakers 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 cardiaques− Definitions I1maxI1eff Specifications − InstallationSpecifications For Torch Torch Dimensions And WeightUnit Dimensions, Weight, And Movement Dimensions And WeightMovement Do not move or operate unit where it could tip Connecting Work Clamp and Gas/Air Supply 90-120 psiRear of Unit 50/60 Hz Single Phase Electrical Service GuideTime-Delay Extension Cord Data Do 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 TerminalsInstalling Alternative Plug Setting Gas/Air PressureSetting 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 OperationRoutine 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 Diagram− Parts List Recommended Spare PartsRecommended Spare Parts 195 110 ICE-40C 25ft Torch 195 111 ICE-40C 50ft Torch See -1for additional Consumable partsWork like a Pro Service SupportAssistance Hobart Welding Products Contact your Distributor for