Miller Electric Spectrum 875 Owner's Manual

Miller Electric Spectrum 875 Owner's Manual

Air plasma cutter
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www.MillerWelds.com
Spectrum 875
And ICE-60T Torch
OM-234 163B
2010−04
Processes
Air Plasma Cutting
and Gouging
Description
Air Plasma Cutter
R
File: Plasma Cutters

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Summary of Contents for Miller Electric Spectrum 875

  • Page 1 OM-234 163B 2010−04 Processes Air Plasma Cutting and Gouging Description Air Plasma Cutter Spectrum 875 And ICE-60T Torch File: Plasma Cutters Visit our website at www.MillerWelds.com...
  • Page 2 ISO 9001 Quality System Standard. particular model are also provided. Miller Electric manufactures a full line of welders and welding related equipment. For information on other quality Miller products, contact your local Miller distributor to receive the latest full line catalog or individual specification sheets.
  • Page 3: Table Of Contents

    TABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING ........1-1.
  • Page 4 TABLE OF CONTENTS SECTION 6 − MAINTENANCE & TROUBLESHOOTING ......... . . 6-1.
  • Page 5: Section 1 − Safety Precautions - Read Before Using

    SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING pom_2010−03 Protect yourself and others from injury — read and follow these precautions. 1-1. Symbol Usage DANGER! − Indicates a hazardous situation which, if Indicates special instructions. not avoided, will result in death or serious injury. The possible hazards are shown in the adjoining symbols or explained in the text.
  • Page 6: Electric Shock Can Kill

    FUMES AND GASES can be hazardous ELECTRIC SHOCK can kill. SIGNIFICANT DC VOLTAGE exists in Cutting produces fumes and gases. Breathing inverter power sources AFTER the re- these fumes and gases can be hazardous to your health. moval of input power. Keep your head out of the fumes.
  • Page 7: Additional Symbols For Installation, Operation, And Maintenance

    1-3. Additional Symbols For Installation, Operation, And Maintenance HOT PARTS can burn. FALLING EQUIPMENT can injure. D Do not touch hot parts bare handed. D Use lifting eye to lift unit only, NOT running gear, gas cylinders, or any other accessories. D Allow cooling period before working on equipment.
  • Page 8: California Proposition 65 Warnings

    1-4. California Proposition 65 Warnings For Gasoline Engines: Welding or cutting equipment produces fumes or gases which contain chemicals known to the State of California to Engine exhaust contains chemicals known to the State of cause birth defects and, in some cases, cancer. (California California to cause cancer, birth defects, or other reproduc- Health &...
  • Page 9: Section 2 − Consignes De Sécurité − Lire Avant Utilisation

    SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE AVANT UTILISATION pom_2010−03fre Se protéger et protéger les autres contre le risque de blessure — lire et respecter ces consignes. 2-1. Signification des symboles DANGER! − Indique une situation dangereuse qui si on Indique des instructions spécifiques.
  • Page 10 D Assurez−vous que le fil de terre du cordon d’alimentation est cor- D Ayez recours à des protège−tympans ou à un serre−tête ignifuges rectement relié à la borne de terre dans la boîte de coupure ou que afin d’éviter que les étincelles n’entrent dans vos oreilles. la fiche du cordon est branchée à...
  • Page 11: Dangers Supplémentaires En Relation Avec L'installation, Le Fonctionnement Et La Maintenance

    D Ne coupez pas dans un endroit près d’opérations de décapage, de LES BOUTEILLES peuvent exploser nettoyage ou de vaporisation. La chaleur et les rayons d’arc peu- si elles sont endommagées. vent réagir avec les vapeurs et former des gaz hautement toxiques et irritants.
  • Page 12 Les CHAMPS ÉLECTROMAGNÉTIQUES (CEM) CHARGES ÉLECTROSTATI- peuvent affecter les implants médicaux. QUES peuvent endommager les cir- cuits imprimés. D Les porteurs de stimulateurs cardiaques et autres implants médicaux doivent rester D Etablir la connexion avec la barrette de terre à distance. avant de manipuler des cartes ou des pièces.
  • Page 13: Proposition Californienne 65 Avertissements

    2-4. Proposition californienne 65 Avertissements cancérogène ainsi que provoquant des malformations Les équipements de soudage et de coupage produisent des congénitales ou autres problèmes de procréation. Se laver les fumées et des gaz qui contiennent des produits chimiques mains après toute manipulation. dont l’État de Californie reconnaît qu’ils provoquent des mal- Pour les moteurs à...
  • Page 14: Section 3 − Definitions

    A complete Parts List is available at www.MillerWelds.com SECTION 3 − DEFINITIONS 3-1. Symbols And Definitions For Nameplate And Serial Number/Rating Label Plasma Arc Cutting Adjust Air/Gas Low Air Pressure Amperes (PAC) Pressure Light No − Do Not Do Volts Increase Temperature This...
  • Page 15: Section 4 − Installation

    A complete Parts List is available at www.MillerWelds.com SECTION 4 − INSTALLATION 4-1. Specifications Power Supply Input Rated AC phase (PH) and line frequency (Hz) 1 PH 50-60 Hz — — Volts AC RMS − (U Amps RMS − (I Rated Input Voltage (U ) and rated Input Current (I...
  • Page 16: Duty Cycle And Overheating

    A complete Parts List is available at www.MillerWelds.com 4-2. Duty Cycle And Overheating Duty Cycle is percentage of 10 40% Duty Cycle minutes that unit can cut at rated load without overheating. Duty cycle is based on an ambient tem- perature of 104 F (40 C).
  • Page 17: Power Source Dimensions And Weight

    A complete Parts List is available at www.MillerWelds.com 4-4. Power Source Dimensions And Weight Do not move or operate unit Unit Dimensions And Weight where it could tip. 42 lb (19.1 kg) Torch Weight 20 ft (6.1 m) 6 lb (2.7 kg) 18-1/2 in.
  • Page 18: Connecting And Disconnecting Torch

    A complete Parts List is available at www.MillerWelds.com 4-6. Connecting And Disconnecting Torch Turn off power source and disconnect input power. Torch Connector Quick Connect Collar Nipple Receptacle Securing Pin To connect torch: Push torch connector onto receptacle and quick connect until collar secures nipple.
  • Page 19: Power Cable Management Strap

    A complete Parts List is available at www.MillerWelds.com 4-8. Power Cable Management Strap Power Cable Management Strap Coil power cable and secure to unit using the power cable management strap. 805 275-A OM-234 163 Page 15...
  • Page 20: Electrical Service Guide

    A complete Parts List is available at www.MillerWelds.com 4-9. Electrical Service Guide Failure to follow these electrical service guide recommendations could create an electric shock or fire hazard. These recommenda- tions are for a dedicated branch circuit sized for the rated output and duty cycle of the welding power source. 50/60 Hz Single Phase Input Voltage (V)
  • Page 21: Serial Number And Rating Label Location

    A complete Parts List is available at www.MillerWelds.com 4-11. Serial Number And Rating Label Location The serial number and rating information for this product is located on the bottom. Use rating label to determine input power requirements and/or rated output. For future reference, write serial number in space provided on back cover of this manual. 4-12.
  • Page 22: Connecting Plasma Cutter To Miller Or Hobart Generator Equipped With A

    A complete Parts List is available at www.MillerWelds.com 4-13. Connecting Plasma Cutter To Miller Or Hobart Generator Equipped With A Full KVA Receptacle (NEMA 14-50R) Using Adapter Cord (Part No. 300 158) Adapter Cord Plasma Cutter Plug Generator Receptacle Use adapter cord to connect plasma cutter to Miller Bobcat, Trailblazer, or Hobart Champ 10,000 and any other generator...
  • Page 23: Wiring Optional 240 Volt Plug (119 172) For Connection To Miller Bobcat, Trailblazer

    A complete Parts List is available at www.MillerWelds.com 4-14. Wiring Optional 240 Volt Plug (119 172) For Connection To Miller Bobcat, Trailblazer Or Hobart Champion 10,000 Input And Grounding 3 (Not Used) Conductors Plug Wired for 240 V, 2-Wire Load Tools Needed: Neutral (Brass) Terminal And Prong (Not Used)
  • Page 24: Generator Settings For Plasma Cutter Operation

    A complete Parts List is available at www.MillerWelds.com 4-15. Generator Settings For Plasma Cutter Operation Engine Control Switch must be set at Set generator Fine Adjustment Control to 10 “RUN” position − not “RUN/IDLE”. for maximum auxiliary power, if applicable. The peak KW at arc stretch of this plasma power source is 15.5 KW.
  • Page 25: Section 5 − Operation

    A complete Parts List is available at www.MillerWelds.com SECTION 5 − OPERATION 5-1. Controls Ref. 234 155-A Output Control Cut/Gouge Switch Use only clean, dry air with 90 to 120 psi Use control to set cutting output. Place switch in appropriate position for de- (621 to 827 kPa) pressure.
  • Page 26: Trigger Safety Lock

    A complete Parts List is available at www.MillerWelds.com 5-2. Trigger Safety Lock Trigger Trigger Locked Trigger Unlocked 801 397-A 5-3. Plasma Cutting System Practices The pilot arc starts immediately when trigger is pressed. GOUGE Always connect work clamp to a clean, DO NOT start pilot arc without cutting or Set switch to either cut or gouge paint-free location on workpiece, as close to...
  • Page 27: Sequence Of Cutting Operation

    A complete Parts List is available at www.MillerWelds.com 5-4. Sequence Of Cutting Operation GOUGE Connect work clamp to a clean, paint-free Unit automatically regulates pressure to 70 psi location on workpiece, as close to cutting (483 kPa) for cutting. area as possible. Connect work clamp to portion of workpiece that does not fall away after being cut.
  • Page 28: Sequence Of Gouging Operation

    A complete Parts List is available at www.MillerWelds.com 5-5. Sequence Of Gouging Operation GOUGE Unit automatically regulates pressure to 60 psi (413 kPa) for gouging. Connect work clamp to a clean, paint-free location on workpiece, as close to cutting area as possible. Connect work clamp to portion of workpiece that does not fall away after being cut.
  • Page 29: Sequence Of Piercing Operation

    A complete Parts List is available at www.MillerWelds.com 5-6. Sequence Of Piercing Operation The pilot arc starts immediately when trigger is pressed. Recommended maximum piercing capacity is 7/16 in. (11 mm). GOUGE Unit automatically regulates pressure to 70 psi (483 kPa) for cutting. Connect work clamp to a clean, Hold torch at an angle to the workpiece.
  • Page 30: Cutting Speed

    A complete Parts List is available at www.MillerWelds.com 5-7. Cutting Speed Mild Steel Material Thickness Recommended Cut Speeds Arc Current Inches mm/min 2184 1041 12.7 15.9 19.1 22.2 Stainless Material Thickness Recommended Cut Speeds Arc Current Inches mm/min 1829 12.7 15.9 19.0 22.2...
  • Page 31: Section 6 − Maintenance & Troubleshooting

    A complete Parts List is available at www.MillerWelds.com SECTION 6 − MAINTENANCE & TROUBLESHOOTING 6-1. Routine Maintenance Maintain more often Disconnect power during severe conditions. before maintaining. n = Check Z = Change ~ = Clean l = Replace Reference * To be done by Factory Authorized Service Agent Each n Torch Tip, Electrode,...
  • Page 32: Checking/Replacing Retaining Cup, Tip, And Electrode

    A complete Parts List is available at www.MillerWelds.com 6-3. Checking/Replacing Retaining Cup, Tip, And Electrode Overtightening will strip threads. Do not overtighten electrode, tip, and retaining cup during assembly. Do not cross-thread parts causing stripping. Use care during torch assembly and parts replacement. Inspect shield cup, tip, and electrode for wear before cutting or whenever cutting speed has been significantly reduced.
  • Page 33: Wrapper Removal/Installation

    A complete Parts List is available at www.MillerWelds.com 6-4. Wrapper Removal/Installation Turn power, disconnect input power plug from receptacle or turn off and lockout/tagout line dis- connect device before working on unit. Significant DC voltage can remain on capacitors after unit is Off.
  • Page 34: Checking Or Replacing Filter Element (Part No. 227 877)

    A complete Parts List is available at www.MillerWelds.com 6-5. Checking Or Replacing Filter Element (Part No. 227 877) Turn power, disconnect input power plug from receptacle or turn off and lockout/tagout line dis- connect device before working on unit. Significant DC voltage can remain on capacitors after unit is Off.
  • Page 35: Status/Trouble Lights

    A complete Parts List is available at www.MillerWelds.com 6-6. Status/Trouble Lights Light Condition Status/Possible Cause Power Input power is okay. When Power light is on, system is normal if these lights Pressure/Cup/T emp are off. Flashing rate is steady for 15 seconds or until torch trigger Input power was above 300 volts AC or below 156 volts Power is pressed again, whichever comes first.
  • Page 36: Troubleshooting Power Source

    A complete Parts List is available at www.MillerWelds.com 6-7. Troubleshooting Power Source Trouble Remedy Clean or replace worn consumables as necessary (see Section 6-3). No pilot arc; difficulty in establishing an arc. Check for damaged torch or torch cable. Check position of cut/gouge switch. If using cutting consumables, be sure that switch is in the CUT position.
  • Page 37: Troubleshooting Torch

    A complete Parts List is available at www.MillerWelds.com Trouble Remedy Cup status light flashes steady for 15 System failed to strike an arc. Power source failed to deliver current to the output. Check continuity of seconds or until torch trigger is pressed, torch connections (pilot lead and electrode lead).
  • Page 38: Section 7 − Electrical Diagram

    SECTION 7 − ELECTRICAL DIAGRAM Figure 7-1. Circuit Diagram OM-234 163 Page 34...
  • Page 39 234 157-B OM-234 163 Page 35...
  • Page 40: Section 8 − Parts List

    SECTION 8 − PARTS LIST 8-1. Recommended Spare Parts Item Dia. Part Mkgs. Description Quantity Recommended Spare Parts ....234843 LABEL, ICE 60T CONSUMABLES ........
  • Page 41 Item Part Item Part Description Description 215 594 Handle w/Screws (1) 215 606 Clip, retaining (1) 215 478 Kit, cup sensor (1) 212 735 O-Ring, main body (1) 215 479 Torch Head Repair Kit (1) 234 829 Kit, ICE 60T/TM quick connect w/wing head fastener (1) 185 833 Switch Assy w/Spring (1)
  • Page 42 Notes...
  • Page 43 LIMITED WARRANTY − Subject to the terms and conditions 90 Days — Parts Call below, Miller Electric Mfg. Co., Appleton, Wisconsin, warrants to its Accessory (Kits) 1-800-4-A-MILLER original retail purchaser that new Miller equipment sold after the...
  • Page 44 Contact the Delivering Carrier to: File a claim for loss or damage during shipment. For assistance in filing or settling claims, contact your distributor and/or equipment manufacturer’s Transportation Department. ORIGINAL INSTRUCTIONS − PRINTED IN USA 2010 Miller Electric Mfg. Co. 2010−01...

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Ice-60t

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