Miller Electric DB1725RDI25, DB17V12R manual Connecting Torch With One-Piece Cable, Connections

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3-3. Connecting Torch

A. Connecting Torch With One-Piece Cable

If applicable, install high-frequency unit.

Torch Without Gas Valve

4

2

3

1

6

5

8

7

9

Torch With Gas Valve

4

 

2

3

1

6

5

8

7

YTurn Off welding power source power before install- ing torch.

Obtain the following hose:

1Gas Hose With 5/8-18 Right- Hand Fittings

Connections:

2Regulator/Flowmeter

3Gas Cylinder

4Welding Power Source

5Gas Valve

Operating Torch Gas Valve:

Valve controls gas preflow and post- flow. Open valve on torch just before welding.

Preflow is used to purge the immedi- ate weld area of atomsphere.

Postflow is required to cool tungsten and weld, and to prevent contamina- tion of tungsten and weld. After weld- ing, leave valve open about 1 sec- ond for every 10 amperes of weld current. Close valve on torch when postflow is finished.

6One-Piece Torch Cable

7Power Cable Adapter

Connect gas hose and power cable to adapter before connecting adapt- er to weld output terminal.

8 Work Clamp

Connect work clamp to clean, paint- free location on workpiece, close to weld.

Use wire brush to clean weld joint area.

9 Foot Control

803 313

Tools Needed:

9

5/8, 7/8 in

 

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Contents OM-1600199 525E ProcessesDescription From Miller to You Table of Contents Page −SAFETY Precautions for Gtaw Torches − Read Before Using Symbol UsageGtaw Torch Hazards About Pacemakers EMF InformationSpecifications − SpecificationsExceeding Rated Amperage can damage torch and void warranty Duty CycleRequired Torch Parts And Torch Assembly − InstallationInternational Style Connector Assembly Installing TungstenConnecting Torch With One-Piece Cable Connecting TorchConnections Operating Torch Gas ValveConnecting Torch With Flow-Through Type Connection Connecting Torch With Two-Piece CableRoutine Maintenance − Maintenance & TroubleshootingTroubleshooting Disconnect torch before maintaining HoursEssary 50-150 Amperage Range Gas Type PolarityPreparing Tungsten Electrode For Welding − Guidelines for TIG Welding GtawPositioning The Torch Preparing Tungsten For Conventional AC WeldingPositioning Torch Tungsten For Various Weld Joints Torch Movement During WeldingTungsten Without Filler Rod Tungsten With Filler RodComplete Torch Assembly − Parts ListEnglish 194 ADAPTER, intl style flow through Torch Models With Gas Valve 17V12R Page Page Support ServiceMiller Electric Mfg. Co Owner’s Record
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