Hobart Welding Products OM-928 specifications Trigger Safety Lock, Sequence Of Operation, 196

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3-3. Trigger Safety Lock

1 Trigger

Trigger Locked

1

 

Trigger Unlocked

801 545-A

3-4. Sequence Of Operation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXAMPLE Of Cutting Operation

. Moisture from the compressor will form in the air line and at

 

 

 

 

 

 

 

the torch. It will be normal to sometimes see moisture come

 

 

 

 

 

 

 

out the end of the torch.

The pilot arc starts immediately when trigger is pressed.

For shielded cutting, place drag shield on edge of metal. For non-shielded cutting, use 1/8 in (3.2 mm) standoff distance (dragging tip will reduce tip life).

Adjust torch speed so sparks go thru metal and out bottom of cut.

Raise trigger lock and press

trigger. Pilot arc starts.

Pause briefly at end of cut before releasing trigger.

After cutting arc starts, slowly start moving torch across metal.

Postflow continues for approx. 12 seconds after releasing trigger; cutting arc can be in- stantly restarted during postflow by raising trigger lock and pressing trigger.

As a convenience, the torch can be set up with two cutting combinations, either drag or non-shielded cutting. The torch comes standard with drag cutting.

.Maximum performance on thicker materials can be obtained by using non-shielded cutting with a 1/16 - 1/8 in (1.6 - 3.2 mm) standoff.

Drag Cutting

Use retaining cup (197 567) and drag shield (196 929) to obtain a 1/16 in (1.6 mm) standoff automatically. This combination is designed to allow dragging the torch directly on the workpiece.

Use shields for ease of use when cutting with a template, or when drag cutting is preferred.

Non-Shielded Cutting

196 926

Use retaining cup (196 928) and hold a 1/16-1/8 in (1.6-3.2 mm) standoff between the workpiece and cutting tip.

Use non-shielded when visually following a line.

197 567

196 928

 

. This combination can be used for drag

 

cutting but does not provide optimum

 

cutting performance on thicker material.

196 929

1/16-1/8 in

(1.6-3.2 mm)

standoff

workpiece

801 400-A

OM-928 Page 13

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Contents Description OM-928Processes From 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 hearingMoving Parts can cause injury HOT Parts can cause severe burnsFlying Metal can injure eyes Overuse can cause OverheatingAbout Pacemakers Principal Safety StandardsEMF Information LE Coupage présente un risque d e feu ou d’explosion Signification des symbolesUNE Décharge Électrique peu t entraîner la mort Identifie un message de sécurité particulierLES Fumées ET LES GAZ peuvent être dangereux LE Bruit peut endommager l’ouïeLE Plasma D’ARC peut entraîner des blessures LES Bouteilles peuvent exploser si elles sont endommagéesPrincipales normes de sécurité Consignes relatives aux stimulateurs cardiaques Information sur les champs électromagnétiquesSpecifications For Power Source InstallationSpecifications For Torch Duty Cycle And OverheatingDimensions And Weight Torch Dimensions And WeightSelecting a Location Movement1 Location And AirflowWork Clamp Workpiece Connecting Work Clamp Connecting Input PowerCutting Speed OperationControls Pilot arc starts immediately when trigger is pressed Trigger Safety LockSequence Of Operation 196Months Maintenance & TroubleshootingChecking Torch Shield Cup Shutdown System Trouble Light And Checking Shield Cup Shutdown SystemWork Cable Connections Torch And Work Cable ConnectionsTorch Connections Checking/Replacing Retaining Cup, Tip, And Electrode Turn Off power source before checking torch partsTroubleshooting Power Source Troubleshooting Torch Circuit Diagram Electrical DiagramMain Assembly Parts ListDia Part Ring Torch, ICE-12CPage Page Page Support ServiceHobart Welding Products Contact your Distributor for