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Miller Electric MC-80 manual

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Table of contents for the manual

  • Page 1

    cover 5/94 – Ref. ST-800 895 PRINTED IN USA  1995 MILLER Electric Mfg. Co. Air-Cooled Plasma Arc Cutting (P AC) T orches Can Be Used For Plasma Arc Gouging (P AG) 80 Amperes, 120 V olts DC At 100% Duty Cycle Safety Interlock Devices Shut Down Power Source Hand-Held T orch Equipped With Either 25 Or 50 ft (7.6 Or 15.2 m) Cable Machine-Held T or[...]

  • Page 2

    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 catalog sheets. T o locate your nearest distributor or service agency call 1-800-4-A-Miller , or visit us at www .MillerW eld[...]

  • Page 3

    sr2 1 1/92 PLASMA ARC CUTTING SAFETY PRECAUTIONS W ARNING PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJUR Y OR DEA TH. KEEP CHILDREN A W A Y . P ACEMAKER WEARERS KEEP A WA Y UNTIL CONSUL TING YOUR DOCTOR. In cutting, as in most jobs, exposure to certain hazards occurs. Cutting is safe when precautions are taken. The safety information given[...]

  • Page 4

    sr2 1 1/92 FUMES AND GASES can be hazardous to your health. Cutting produces fumes and gases. Breathing these fumes and gases can be hazardous to your health. 1. Keep your head out of the fumes. Do not breathe the fumes. 2. If inside, ventilate the area and/or use exhaust at the arc to remove cutting fumes and gases. 3. If ventilation is poor , use[...]

  • Page 5

    OM-1592A – 5/95 EMF INFORMA TION Th e following is a quotation from the General Conclusions Section of the U.S. Congress, Office of T echnology Assessment, Biological Effects of Power Frequency Electric & Magnetic Fields – Background Paper , OT A-BP-E-53 (Washington, DC: U.S. Government Printing Of fice, May 1989): “ . . . there is now a [...]

  • Page 6

    [...]

  • Page 7

    OM-1592 Page 1 SECTION 1 – SAFETY INFORMA TION mod1.1 2/93 Read all safety messages throughout this manual. Obey all safety messages to avoid injury . Learn the meaning of W ARNING and CAUTION. 1 Safety Alert Symbol 2 Signal Word W ARNING means possible death or serious injury can happen. CAUTION means possible minor injury or equipment damage ca[...]

  • Page 8

    OM-1592 Page 2 Ref. ST-800 895 / Ref. ST -801 208 A B Inches Millimeters A 10-1/2 267 B 1-3/8 35 C 1-1/4 32 D 1-5/16 33 E 13-1 1/16 348 D Hand-Held T orch Machine-Held T orch C E Figure 2-1. Overall Dimensions 2-1. Duty Cycle CAUTION CUTTING LONGER THAN RA TED DUTY CYCLE can damage cutter and torch and void warranty . • Do not cut at rated load l[...]

  • Page 9

    OM-1592 Page 3 SECTION 3 – INST ALLA TION 3-1. Installing Hand-Held T orch ELECTRIC SHOCK can kill. • Do not touch live electrical parts. • T urn Of f cutter , and disconnect input power before installing torch. MOVING P ARTS can cause injury . • Keep away from moving parts. HOT P ARTS can cause severe burns. • Allow cooling period before[...]

  • Page 10

    OM-1592 Page 4 3-2. Installing Machine-Held T orch And Remote T rigger Pendant ELECTRIC SHOCK can kill. • Do not touch live electrical parts. • T urn Of f cutter , and disconnect input power before installing torch. MOVING P ARTS can cause injury . • Keep away from moving parts. HOT P ARTS can cause severe burns. • Allow cooling period befo[...]

  • Page 11

    OM-1592 Page 5 SECTION 4 – OPERA TING THE TORCH W ARNING ELECTRIC SHOCK can kill. • Always wear dry insulating gloves. • Insulate yourself from work and ground. • Do not touch live electrical parts. • Keep all panels and covers securely in place. FUMES AND GASES can be hazardous to your health. • Keep your head out of the fumes. • V e[...]

  • Page 12

    OM-1592 Page 6 CAUTION TIP AND EL ECTRO DE WEAR BEYOND RECOM MENDED V AL UES or OPERA TI ON WI THO UT TI P OR ELECT RODE can damag e torch. • Inspect cup, tip, and electrode before cutting or whenever cutting speed has been significantly reduced (see Section 5-2). • Do not operate torch without a tip or electrode in place. INCORRECT PIERCING ca[...]

  • Page 13

    OM-1592 Page 7 Figure 4-2. Sequence Of Plasma Arc Cutting (P AC) HITTING TORCH ON A HARD SURF ACE to remove spatter can damage torch. • Do not clean torch by hitting it against a hard surface. • Hitting hard surfaces can damage torch parts and stop proper operation. TIP AND EL ECTRO DE WEAR BEYOND RECOM MENDED V AL UES or OPERA TI ON WITHOUT TI[...]

  • Page 14

    OM-1592 Page 8 SECTION 5 – MAINTENANCE & TROUBLESHOOTING ELECTRIC SHOCK can kill. • Do not touch live electrical parts. • T urn Of f cutter , and disconnect input power before inspecting, maintaining, or servicing. HOT P ARTS can cause severe burns. • Allow cooling period before maintaining or servicing. Maintenance to be performed only[...]

  • Page 15

    OM-1592 Page 9 5-2. Checking/Replacing Cup, Tip, And Electrode CAUTION OVERTIGHTENING will strip threads. • Do not overtighten electrode, tip, and cup during assembly . • Do not cross-thread parts causing stripping. • Use care during torch assembly and parts replacement. TIP AND EL ECTRO DE WEAR BEYOND RECOM MENDED V AL UES or OPERA TI ON WI [...]

  • Page 16

    OM-1592 Page 10 5-3. T roubleshooting ELECTRIC SHOCK can kill. • Do not touch live electrical parts. • T urn Of f cutter , and disconnect input power before inspecting, maintaining, or servicing. HOT P ARTS can cause severe burns. • Allow cooling period before maintaining or servicing. T roubleshooting to be performed only by qualified person[...]

  • Page 17

    OM-1592 Page 1 1 SECTION 6 – P ARTS LIST Description Part No. Item No. Figure 6-1. T orch, MC-80 (Hand-Held) Quantity 1 172 385 TORCH, body assembly (consisting of) 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 172 384 TORCH, head 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

  • Page 18

    OM-1592 Page 12 Description Part No. Item No. Figure 6-3. T orch, MC-80 (Machine) Quantity 1 175 833 TORCH, body assembly (consisting of) 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 175 829 TORCH HEAD, (Includes Item 5) 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

  • Page 19

    Warranty Questions? Call 1-800-4-A-MILLER for your local Miller distributor. miller_warr 7/00 Y our distributor also gives you ... Service Y ou always get the fast, reliable response you need. Most replacement parts can be in your hands in 24 hours. Support Need fast answers to the tough welding questions? Contact your distributor . The expertise o[...]

  • Page 20

    PRINTED IN USA  2000 Miller Electric Mfg. Co. 6/00 Miller Elect ric Mfg. Co. An I l li noi s T ool Works Com pany 1635 West Spenc er St reet Applet on, W I 54914 USA International He adquarters – USA USA Phone: 920-735-4505 Aut o-A t t ended USA & C anada F AX : 920-735-4134 Int ernati onal F AX : 920-735-4125 European Headqua rters – Un[...]