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Miller Electric HF-251-2, HF-251D-1 manual Connecting To Weld Output Terminals

Models: HF-251-2 HF-251D-1

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3-7. Connecting To Weld Output Terminals

12

ELECTRODE IN

ELECTRODE OUT

WORK

INPUT/OUTPUT

3

YTurn Off HF Unit and welding power source, and discon- nect input power before making connections. Stop engine on welding genera- tors.

YNot connecting work cables to HF Unit will damage power source. Always connect work cables to Work Input/ Output terminal.

1 Electrode In Terminal

Open left side panel. Connect elec- trode cable from welding power source to Electrode-In Terminal.

2 Electrode Out Terminal

Connect torch cable to Electrode- Out Terminal.

3 Work Input/Output Terminal

Connect the work cables from the welding power source and the work clamp to the Work Input/Output ter- minal. Close and secure left side panel.

CAUTION

NOT CONNECTING WORK CABLES TO HF unit will damage welding power source or welding generator.

Welding Power

Source Or

Generator

WORK ELECTRODE

HF Unit

Work

ALWAYS connect WORK cables to this terminal for HF protection.

Work

S-168 309

Tools Needed:

3/4 in

ssb2.2 11/92 − Ref. S-0752 / Ref. 098 956-D

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OM-611 Page 13

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Miller Electric HF-251-2, HF-251D-1 manual Connecting To Weld Output Terminals, Electrode Electrode OUT Work INPUT/OUTPUT

Contents

Description OM-611Processes From Miller to You Table of Contents Page Marks a special safety message Symbol UsageArc Welding Hazards Electric Shock can killWelding can cause fire or explosion ARC Rays can burn eyes and skinFlying Metal can injure eyes Buildup of GAS can injure or killCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information − Consignes DE Sécurité − À Lire Avant Utilisation Identifie un message de sécurité particulierLES Particules Projetées peu- vent blesser les yeux LE Soudage peut causer un incen- die ou une explosionLES Pièces Chaudes peuvent cau- ser des brûlures graves LE Bruit peut affecter l’ouïeLA Chute DE L’APPAREIL peut blesser Risque D’INCENDIE OU D’EXPLO’EMPLOI Excessif peut Faire LES Pièces Mobiles peuvent cau- ser des blessuresConsignes relatives aux stimulateurs cardiaques Principales normes de sécuritéInformation sur les champs électromagnétiques Typical Process Connections − InstallationSpecifications IN-GAS-OUT Installing Gas SupplyAmperage Control Power Source Plug Information And ConnectionsSocket Operator Control Receptacle Information And ConnectionsOperator Control Receptacle Socket Information Electrode Electrode OUT Work INPUT/OUTPUT Connecting To Weld Output TerminalsConnecting Input Power High Frequency Selector Switch High Frequency Switch− Operation ControlsPostflow Timer Power Switch And Pilot LightHigh Frequency Intensity Control Shielding GasRoutine Maintenance Months − Maintenance & TroubleshootingAdjusting Spark Gaps Trouble Remedy TroubleshootingCircuit Diagram For 115 Volts Model − Electrical DiagramsCircuit Diagram For 230 Volts Model − High Frequency Incorrect InstallationWelding Processes Requiring High Frequency Weld ZoneMetal Building Requirements Correct InstallationMetal Building AC − Argon AC − Argon − 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 RodReturn To Table Of Contents Complete Assembly Part 1 of 2 115V Model − Parts ListComplete Assembly Part 1 Complete Assembly Part 2 of 2 115V Model Complete Assembly Part 2 Page Page Page Support ServiceMiller Electric Mfg. Co Owner’s Record