Hobart AirForce 400 User Manual

Hobart AirForce 400 User Manual

Air plasma cutter

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www.HobartWelders.com
AirForce 400
And Ice-27C Torch
OM-203 653C
February 2003
Processes
Air Plasma Cutting
and Gouging
Description
Air Plasma Cutter

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Summary of Contents for Hobart AirForce 400

  • Page 1 OM-203 653C February 2003 Processes Air Plasma Cutting and Gouging Description Air Plasma Cutter  AirForce 400 And Ice-27C Torch Visit our website at www.HobartWelders.com...
  • Page 2 From Miller to You Thank you and congratulations on choosing Miller. Now you can get the job done and get it done right. 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 ......1-1. Symbol Usage .
  • Page 5: Section 1 - Safety Precautions - Read Before Using

    SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING pom _nd_9/98 1-1. Symbol Usage Means Warning! Watch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. Y Marks a special safety message. This group of symbols means Warning! Watch Out! possible ELECTRIC SHOCK, MOVING PARTS, and HOT PARTS hazards.
  • Page 6: Arc Rays Can Burn Eyes And Skin

    If inside, ventilate the area and/or use exhaust at the arc to remove EXPLODING PARTS can injure. cutting fumes and gases. If ventilation is poor, use an approved air-supplied respirator. D On inverter power sources, failed parts can ex- Read the Material Safety Data Sheets (MSDSs) and the manufac- plode or cause other parts to explode when turer’s instruction for metals to be cut, coatings, and cleaners.
  • Page 7: Additional Symbols For Installation, Operation, And Maintenance

    1-3. Additional Symbols For Installation, Operation, And Maintenance HOT PARTS can cause severe burns. FIRE OR EXPLOSION hazard. D Do not touch hot parts bare handed. D Do not locate unit on, over, or near combustible surfaces. D Allow cooling period before working on torch. D Do not install unit near flammables.
  • Page 8: Principal Safety Standards

    1-4. Principal Safety Standards Safety in Welding and Cutting, ANSI Standard Z49.1, from American Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1, Welding Society, 550 N.W. LeJeune Rd, Miami FL 33126 from Compressed Gas Association, 1235 Jefferson Davis Highway, Suite 501, Arlington, VA 22202.
  • Page 9: Section 1 - Consignes De Sécurité - Lire Avant Utilisation

    SECTION 1 – CONSIGNES DE SÉCURITÉ – LIRE AVANT UTILISATION pom_nd_fre_9/98 1-1. Signification des symboles Signifie Mise en garde ! Soyez vigilant ! Cette procédure présente des risques de danger ! Ceux-ci sont identifiés par des symboles adjacents aux directives. Y Identifie un message de sécurité...
  • Page 10 Isoler la pince de masse quand pas mis à la pièce pour éviter le Tableau 1. Protection des yeux pour le coupage au plasma d’arc contact avec tout objet métallique. Il y a DU COURANT CONTINU IMPORTANT dans Intensité de courant en ampères Filtre de teinte (minimum) les convertisseurs après la suppression de l’ali- Moins de 20...
  • Page 11: Dangers Supplémentaires En Relation Avec L'installation, Le Fonctionnement Et La Maintenance

    D Utilisez uniquement le ou les chalumeaux recommandés dans le ma- D Les bouteilles ne doivent pas être près de la zone de coupage ni de nuel de l’opérateur. tout autre circuit électrique. D Un contact électrique ne doit jamais se produire entre un chalumeau de plasma d’arc et une bouteille.
  • Page 12: Principales Normes De Sécurité

    1-4. Principales normes de sécurité Safety in Welding and Cutting, norme ANSI Z49.1, de l’American Wel- Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet P-1, ding Society, 550 N.W. Lejeune Rd, Miami FL 33126 de la Compressed Gas Association, 1235 Jefferson Davis Highway, Suite 501, Arlington, VA 22202.
  • Page 13: Section 2 - Installation

    SECTION 2 – INSTALLATION 2-1. Specifications NOTE If the unit is operated from a 30 ampere, 115 volt circuit or a 15 ampere, 230 volt circuit, a different input power plug must be installed on the power cord. See Section 2-9 for instructions. Amperes Input at Rated Output, Rated...
  • Page 14: Torch Dimensions And Weight

    2-4. Torch Dimensions And Weight 8-3/8 in (213 mm) 1 in (25 mm) 1-3/8 in 3.0 lb (1.4 kg) (35 mm) Ref. 802 877 2-5. Selecting A Location 8-1/2 in (216 mm) Dimensions And Weight 12-5/16 in* (313 mm) 49 lb (22.2 kg) not including torch *Add 13/16 in (21 mm) for handle.
  • Page 15: Connecting Gas/Air Supply

    2-6. Connecting Gas/Air Supply Use only clean, dry air with 70 to 150 psi (483 to 1034 kPa) pressure. Gas/Air Inlet Opening Hose Teflon Tape Obtain hose with 1/4 NPT right- hand thread fitting. Wrap threads Tools Needed: with teflon tape (optional) or apply 5/8, 1-1/8 in pipe sealant, and install fitting in opening.
  • Page 16: Connecting Work Clamp

    2-7. Connecting Work Clamp Work Clamp Workpiece Connect work clamp to a clean, paint-free location on workpiece, as close to cutting area as possible. 802 463-A 2-8. Connecting Input Power Check input voltage available at site. Changeover Switch Switch is accessible through slot in rear panel.
  • Page 17: Installing Alternative Plug

    2-9. Installing Alternative Plug This procedure is necessary if the unit is to be connected to a 230 Supplied 115 VAC Plug VAC receptacle, or to a 115 VAC receptacle that requires a plug that Cut cord close to plug. is different from the supplied plug.
  • Page 18: Section 3 - Operation

    SECTION 3 – OPERATION 3-1. Controls PRESSURE 60 PSI Set To 60 PSI (414 kPa) Setting Gas/Air Pressure Requires 70-150 PSI (483-1034 kPa) Supply Output Control put and/or the cut time or find more adequate Place Output control in Gas/Air position and power (see Section 2-1).
  • Page 19: Cutting Speed

    3-2. Cutting Speed The cutting speed curves show the recommended maximum cutting speed capabilities of the power source and torch for mild steel of various thickness. Cut at speeds below the lines shown to avoid poor cuts and torch wear. wmdesign 3-3.
  • Page 20: Sequence Of Operation

    3-4. Sequence Of Operation EXAMPLE Of Cutting Operation The pilot arc starts immediately when trigger is pressed. Place tip on work for drag cutting or for Raise trigger lock and press After cutting arc starts, slowly maximum cutting speed and tip life, use a trigger.
  • Page 21: Section 4 - Maintenance & Troubleshooting

    SECTION 4 – MAINTENANCE & TROUBLESHOOTING 4-1. Routine Maintenance Y Disconnect power Maintain more often before maintaining. during severe conditions. Each Use Check Check Torch Tip, Gas/Air Electrode, Pressure And Shield Every Week Check Shield Cup Shutdown System 3 Months Replace Service Damaged Or...
  • Page 22: Overload Protection: Trouble Lights & Checking Shield Cup Shutdown System

    4-2. Overload Protection: Trouble Lights & Checking Shield Cup Shutdown System If certain problems occur, the Ready light goes off, a trouble light comes on, and output stops. Pressure Light Lights if gas/air pressure is below 40 PSI (276 kPa). Turn power Off, and check for proper gas/air pressure...
  • Page 23: Torch And Work Cable Connections

    4-3. Torch And Work Cable Connections If torch or work cable needs to be removed or replaced, proceed as follows: Turn power Off, and disconnect input power plug from receptacle. Remove wrapper from unit. Torch Connections Remove existing torch cable from unit.
  • Page 24: Checking/Replacing Retaining Cup, Tip, And Electrode

    4-4. Checking/Replacing Retaining Cup, Tip, And Electrode Overtightening will strip threads. Do not overtighten 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 25: Troubleshooting Power Source

    4-5. Troubleshooting Power Source Is input power Check torch consumables. Is Cup Status Connect unit to proper input connected to Reset Power switch S1. light On or voltage (see Section 2-8). correct line flashing? voltage? If unit is overheated, wait Is Changeover Is Temp Status Place Changeover switch in...
  • Page 26: Troubleshooting Torch

    4-6. Troubleshooting Torch Torch travel speed too slow; increase travel speed (see Section 3-2). Clean Does arc go replace torch consumables Go to Section 4-5. as necessary (see Section while cutting? 4-4). Be sure work clamp is securely attached workpiece. Be sure work clamp is securely attached to work- piece.
  • Page 27: Section 5 - Electrical Diagram

    SECTION 5 – ELECTRICAL DIAGRAM 200 809-D Figure 6-1. Circuit Diagram OM-203 653 Page 23...
  • Page 28: Section 6 - Parts List

    SECTION 6 – PARTS LIST Hardware is common and not available unless listed. 802 805 Figure 7-1. Main Assembly OM-203 653 Page 24...
  • Page 29 Item Dia. Part Mkgs. Description Quantity Figure 7-1. Main Assembly ....+195 621 WRAPPER ............
  • Page 30 Item Part Description 183 427 Handle Assy, complete (1) 171 248 Push Button Switch (1) 203 120 Leads, 20ft (1) 203 119 Main Body (1) 185 833 Switch Assembly w/spring (1) 190 220 Spring, trigger assembly 169 231 Grease, silicone (1) 195 014 Torch, replacement 20ft (1) See Figure 7-3 for...
  • Page 31 Effective January 1, 2002 (Equipment with a serial number preface of “LC” or newer) This limited warranty supersedes all previous Miller warranties and is exclusive with no other Warranty Questions? guarantees or warranties expressed or implied. Call LIMITED WARRANTY – Subject to the terms and conditions APT, ZIPCUT &...
  • Page 32: Options And Accessories

    Owner’s Record Please complete and retain with your personal records. Model Name Serial/Style Number Purchase Date (Date which equipment was delivered to original customer.) Distributor Address City State For Service Call 1-800-4-A-Miller or see our website at www.MillerWelds.com to locate a DISTRIBUTOR or SERVICE AGENCY near you. Always provide Model Name and Serial/Style Number.

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Ice-27c torch

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