Miller Spectrum 375 X-TREME Owner's Manual
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Miller Spectrum 375 X-TREME Owner's Manual

Air plasma cutting and gouging
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OM-253555G
2019-11
Processes
Air Plasma Cutting and Gouging
Description
Air Plasma Cutter
Spectrum
®
375 X-TREME And XT 30 Torch
OWNER'S MANUAL
For product information,
Owner's Manual translations,
and more, visit
www.MillerWelds.com

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  • Page 1 OM-253555G 2019-11 Processes Air Plasma Cutting and Gouging Description Air Plasma Cutter Spectrum ® 375 X-TREME And XT 30 Torch OWNER’S MANUAL For product information, Owner’s Manual translations, and more, visit www.MillerWelds.com...
  • Page 2 We know you don’t have time to do it any other way. That’s why when Niels Miller first started building arc welders in 1929, he made sure his products offered long-lasting value and superior quality.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS SECTION 1 – SAFETY PRECAUTIONS – READ BEFORE USING..............1 Symbol Usage .

  • Page 5: Section 1 - Safety Precautions - Read Before Using

    SECTION 1 – SAFETY PRECAUTIONS – READ BEFORE USING Protect yourself and others from injury—read, follow, and save these important safety precautions and operating instructions. 1-1. Symbol Usage DANGER! – Indicates a hazardous situation which, if not � Indicates special instructions. avoided, will result in death or serious injury.
  • Page 6 � Do not use worn, damaged, undersized, or repaired cables. FLYING SPARKS can injure. � Do not wrap torch cable around your body. Sparks and hot metal blow out from the cutting arc. � Ground the workpiece to a good electrical (earth) ground if re- Chipping and grinding cause flying metal.

  • Page 7: Additional Hazards For Installation, Operation, And Maintenance

    � Never cut on a pressurized cylinder - explosion will result. CYLINDERS can explode if � Use only correct compressed gas cylinders, regulators, hoses, damaged. and fittings designed for the specific application; maintain them Compressed gas cylinders contain gas under high and associated parts in good condition.

  • Page 8: California Proposition 65 Warnings

    H.F. RADIATION can cause ARC CUTTING can cause interference. interference. � High-frequency (H.F.) can interfere with radio navi- � Electromagnetic energy can interfere with sensitive gation, safety services, computers, and communi- electronic equipment such as computers and com- cations equipment. puter-driven equipment such as robots.

  • Page 9: Section 2 - Consignes De Sécurité - Lire Avant Utilisation

    SECTION 2 – CONSIGNES DE SÉCURITÉ - LIRE AVANT UTILISATION Pour écarter les risques de blessure pour vous-même et pour autrui — lire, appliquer et ranger en lieu sûr ces consignes relatives aux précautions de sécurité et au mode opératoire. 2-1.
  • Page 10 � Ne touchez pas aux pièces électriques sous tension. DÉCHARGES ÉLECTRIQUES � Portez des gants isolants et des vêtements de protection secs et potentiellement mortelles. sans trous. Il reste une TENSION DC NON NÉGLIGEABLE � Isolez-vous de la pièce à couper et du sol en utilisant des housses dans les sources de soudage onduleur UNE ou des tapis assez grands afin d’éviter tout contact physique avec FOIS l’alimentation coupée.
  • Page 11 LES ÉTINCELLES PROJETÉES L’ARC PLASMA peut provoquer des peuvent provoquer des blessures. blessures. Le coupage plasma produit des étincelles et pro- La chaleur dégagée par le plasma d’arc peut en- traîner de sérieuses brûlures. La force de l’arc est jections de métal à très haute température. Lors- un facteur qui s’ajoute au danger de brûlures.

  • Page 12: Symboles De Dangers Supplémentaires En Relation Avec L'installation, Le Fonctionnement Et La Maintenance

    2-3. Symboles de dangers supplémentaires en relation avec l’installation, le fonctionnement et la maintenance Danger D’EXPLOSION LES PIÈCES CHAUDES peuvent D’HYDROGÈNE. provoquer des brûlures. � Lors du coupage d’aluminium sous l’eau ou avec � Ne pas toucher des parties chaudes à mains nues. de l’eau touchant le dessous de l’aluminium, une �...

  • Page 13: Proposition Californienne 65 Avertissements

    � L’utilisateur est tenu de faire corriger rapidement par un électricien � Pour réduire la possibilité d’interférence, maintenir les câbles aus- qualifié les interférences résultant de l’installation. si courts que possible, les grouper, et les poser aussi bas que pos- sible (ex.

  • Page 14: Section 3 - Definitions

    Do not fuel a hot engine. � Complete Parts List is available at www.MillerWelds.com SECTION 3 – DEFINITIONS Safe24 20 3-1. Additional Safety Symbols And Definitions � Some symbols are found only on CE products. Use lift eye to lift unit and properly installed accessories only, not gas cylinders. Do not exceed maximum lift eye rating (see Specifications).

  • Page 15: Section 4 - Specifications

    Information About Default Weld Parameters And Settings NOTICE – Each welding application is unique. Although certain Miller Electric products are designed to determine and default to certain typical welding parameters and settings based upon specific and relatively limited application variables input by the end user, such default settings are for reference purposes only;...
  • Page 16 � Complete Parts List is available at www.MillerWelds.com A. Power Supply Input Rated AC Phase and line fre- 1 - Phase, 50 / 60 Hz quency (Hz) Rated Input Voltage (U ) and Volts AC RMS - (U Amps RMS - (I rated Input Current (I ) and I 120 VAC, 1-Phase (20 A)
  • Page 17 Complete Parts List is available at www.MillerWelds.com B. Torch The XT30 torch is intended for handheld use only. The torch conforms to IEC 60974-7 when used with the Spectrum 375 X-TREME. Do not use this torch in combination with any other machines.

  • Page 18: Torch Dimensions

    � Complete Parts List is available at www.MillerWelds.com 4-5. Torch Dimensions 8-3/4 in. (222 mm) 1-3/16 in. (30 mm) 1-1/2 in. (38 mm) Ref. 253554-A 4-6. Power Source Dimensions 5-1/2 in. (140 mm) 9 in. (229 mm) 13-1/8 in. (333 mm) Ref.

  • Page 19: Duty Cycle And Overheating

    � Complete Parts List is available at www.MillerWelds.com 4-7. Duty Cycle And Overheating 35% Duty Cycle at 27 A, 92 VDC (120 V Input) Duty Cycle is percentage of 10 minutes that unit rated load without overheating. If unit overheats, thermostat(s) opens, output stops, Temperature trouble light goes On, and cooling fan runs.

  • Page 20: Section 5 - Installation

    � Complete Parts List is available at www.MillerWelds.com SECTION 5 – INSTALLATION 5-1. Selecting A Location Do not move or operate unit where Movement it could tip. Special installation may be re- quired where gasoline or volatile liquids are present — see NEC Ar- ticle 511 or CEC Section 20.

  • Page 21: Connecting And Disconnecting Work Cable

    � Complete Parts List is available at www.MillerWelds.com 5-3. Connecting And Disconnecting Work Cable Turn off power source and discon- nect input power. 1 Work Cable Plug 2 Work Cable Receptacle To connect plug, align key with receptacle keyway and insert into receptacle. Rotate plug clockwise (hand tight only) 1/4 turn to secure in receptacle.

  • Page 22: Electrical Service Guide

    Set Engine Control Switch to Run position, not Run/Idle. Set generator Voltage/Amperage Control to 10 (or max) for maxi- mum auxiliary power. For maximum output, Miller recommends a 4 kW or greater generator. Generator Settings, if applicable. 1 Engine Control Switch Setting 2 Generator...

  • Page 23: Multi-Voltage Plug (Mvp) Connection

    � Complete Parts List is available at www.MillerWelds.com 5-8. Multi-Voltage Plug (MVP) Connection Selecting Plug Connecting Plug To Power Cord Ref. 803812-C Ref. 803812-C 2 Plug - NEMA Type 5-15P Connecting Plug To Power Cord Do not cut off power cord connector and rewire.

  • Page 24: Connecting 120 Volt Input Power

    � Complete Parts List is available at www.MillerWelds.com 5-9. Connecting 120 Volt Input Power Installation must meet all National and Local Codes—have only quali- fied persons make this installation. See rating label on unit and check input volt- age available at site. �...

  • Page 25: 5-10. Connecting 1-Phase 240 Volt Input Power

    � Complete Parts List is available at www.MillerWelds.com A complete Parts List is available at www.MillerWelds.com 5-10. Connecting 1-Phase 240 Volt Input Power 1-1. Connecting 1-Phase Input Power For 240 VAC Installation must meet all National and Local Codes—have only quali- fied persons make this installation.

  • Page 26: Section 6 - Operation

    � Complete Parts List is available at www.MillerWelds.com A complete Parts List is available at www.MillerWelds.com SECTION 6 – OPERATION 1-1. Controls 6-1. Controls 1 Output Control Use control to set cutting output. If 22-27 amperes of cutting output is used with 120 VAC input power, and the overload protection on the input power circuit fre- quently opens, either reduce the cutting out-...

  • Page 27: Cutting Speed

    � Complete Parts List is available at www.MillerWelds.com 6-2. Cutting Speed Recommended Cut Speeds At 30 Amperes Output Material Thickness Recommended Cut Speeds* mm/min 12 ga (0.11) 2662 1/8 (0.13) 2499 Mild Steel 3/16 (0.19) 1605 1/4 (0.25) 3/8 (0.38) 1/2 (0.50) 12.7 5/8 (0.63)

  • Page 28: Plasma Cutting System Practices

    � Complete Parts List is available at www.MillerWelds.com 6-4. Plasma Cutting System Practices A complete Parts List is available at www.MillerWelds.com The pilot arc starts immediately when trigger is pressed. Step 1. Always connect work clamp to a clean, paint-free location on workpiece, as close to cutting area as possible.

  • Page 29: Sequence Of Cutting Operation

    A complete Parts List is available at www.MillerWelds.com � Complete Parts List is available at www.MillerWelds.com 6-5. Sequence Of Cutting Operation The pilot arc starts immediately when trigger is pressed. Step 1. Connect work clamp to a clean, paint-free location on workpiece, as close to cutting area as possible.

  • Page 30: Sequence Of Piercing Operation

    � Complete Parts List is available at www.MillerWelds.com 6-6. Sequence Of Piercing Operation The pilot arc starts immediately when trigger is pressed. Step 1. Connect work clamp to a clean, paint-free location on workpiece, as close to cutting area as possible. Step 2.

  • Page 31: Section 7 - Maintenance And Troubleshooting

    � Complete Parts List is available at www.MillerWelds.com SECTION 7 – MAINTENANCE AND TROUBLESHOOTING 7-1. Routine Maintenance Disconnect power before maintaining. � Maintain more often during severe conditions. � = Check ◇ = Change � = Clean � = Replace Reference Sections 5-2 and 7-6...

  • Page 32: Overload Protection

    � Complete Parts List is available at www.MillerWelds.com 7-2. Overload Protection A complete Parts List is available at www.MillerWelds.com 1 Supplementary Protector CB1 CB1 protects unit from overload. If CB1 opens, unit shuts down. Reset supplementary protector. Ref. 251808-A 7-3. Wrapper Removal A complete Parts List is available at www.MillerWelds.com Turn off power, and disconnect in-...

  • Page 33: Checking Or Replacing Filter Element

    � Complete Parts List is available at www.MillerWelds.com 7-5. Checking Or Replacing Filter Element A complete Parts List is available at www.MillerWelds.com 1-1. Checking Or Replacing Filter Element tools/ Ref. 251808-A / Ref. 804506-B Torx 25 athead philips head wrench crescent wrench Significant DC voltage can remain 2 Filter...

  • Page 34: Checking/Replacing Retaining Cup, Tip, And Electrode

    1-1. Checking/Replacing Retaining Cup, Tip, And Electrode � Complete Parts List is available at www.MillerWelds.com 7-6. Checking/Replacing Retaining Cup, Tip, And Electrode 1/32 in. (1 mm) Worn Electrode Worn Ref. 253554-A Turn Off power source before check- 1 Shield Cup 5 Swirl Ring ing torch parts.

  • Page 35: Status/Trouble Lights

    � Complete Parts List is available at www.MillerWelds.com 7-7. Status/Trouble Lights � Difficulty establishing a pilot arc may indicate consumables need to be cleaned or replaced. Light Condition Status/Possible Causes Power Input power is okay. Pressure/Cup/Temp When Power light is on, system is normal if these lights are off.

  • Page 36: Troubleshooting

    � Complete Parts List is available at www.MillerWelds.com 7-8. Troubleshooting A. Troubleshooting Power Source Trouble Remedy No pilot arc; difficulty in establishing Clean or replace worn consumables as necessary (see Section 7-6). an arc. Check for damaged torch or torch cable. No cutting output;...
  • Page 37 OM-253555 Page 33...

  • Page 38: Section 8 - Electrical Diagrams

    SECTION 8 – ELECTRICAL DIAGRAMS Figure 8-1. Circuit Diagram OM-253555 Page 34...
  • Page 39 286338-A OM-253555 Page 35...

  • Page 40: Section 9 - Parts List

    SECTION 9 – PARTS LIST Recommended Spare Parts Item No. Dia. Mkgs. Part No. Description Quantity 225970 Plug Kit, Adapter (115V/15A) (230V/50A) (Including) 219261 —Adapter, Power Cable 5-15P (115V/15A) 219258 —Adapter, Power Cable6-50P (230V/50A) 238486 Element, Filter Air 249949 XT30, 12FT Hand Held (Replacement) 263799 Cable, Work 12 ft 12 ga w/200A Clamp &...
  • Page 41 Figure 9-2. XT30 Torch Body XT30 Torch Body Item No. Dia. Mkgs. Part No. Description Quantity 259870 Torch Handle Kit, XT30 249971 Torch Trigger 249957 Leads, 12 ft XT30 252938 Torch Body Kit 249972 Torch Trigger Assembly w/Spring 249973 Cup Detect Switch w/Screws 30-60 Amp 252951 Grease, Silicone 249949...
  • Page 42 Notes...

  • Page 43: Warranty

    Effective January 1, 2020 (Equipment with a serial number preface of NA or newer) This limited warranty supersedes all previous Miller warranties and is exclusive with no other guarantees or warranties expressed or implied. LIMITED WARRANTY − Subject to the terms and conditions Supplied Air Respirator (SAR) Boxes and Panels below, Miller Electric Mfg.
  • Page 44 File a claim for loss or damage during For International Locations Visit shipment. www.MillerWelds.com For assistance in filing or settling claims, con- tact your distributor and/or equipment manu- facturer’s Transportation Department. ORIGINAL INSTRUCTIONS – PRINTED IN USA © 2019 Miller Electric Mfg. LLC 2019-11...

This manual is also suitable for:

Spectrum xt 30

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