Miller MC-80 Owner's Manual
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Miller MC-80 Owner's Manual

Miller MC-80 Owner's Manual

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Read and follow these instructions and all
safety blocks carefully.
Have only trained and qualified persons
install, operate, or service this unit.
Call your distributor if you do not understand
the directions.
cover 5/94 – Ref. ST-800 895
All manuals and user guides at all-guides.com
OWNER'S
MANUAL
MC-80 And MC-80M
Air-Cooled Plasma Arc Cutting (PAC) Torches
Can Be Used For Plasma Arc Gouging (PAG)
80 Amperes, 120 Volts DC At 100% Duty Cycle
Safety Interlock Devices Shut Down Power Source
Hand-Held Torch Equipped With Either 25 Or 50 ft (7.6 Or 15.2 m) Cable
Machine-Held Torch Equipped With 50 ft (15.2 m) Cable
Fully Assembled And Supplied With Consumable Kit
1995 MILLER Electric Mfg. Co.
May 1995
Form: OM-1592A
Give this manual to the operator.
For help, call your distributor
or: MILLER Electric Mfg. Co., P.O. Box 1079,
Appleton, WI 54912
414-734-9821
PRINTED IN USA

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Summary of Contents for Miller MC-80

  • Page 1 Have only trained and qualified persons For help, call your distributor install, operate, or service this unit. Call your distributor if you do not understand or: MILLER Electric Mfg. Co., P.O. Box 1079, the directions. Appleton, WI 54912 414-734-9821 ...
  • Page 2 – every power source from This Owner’s Manual is designed to help you get the most out of your Miller is backed by the most Miller products. Please take time to read the Safety precautions. They will hassle-free warranty in the business.
  • Page 3 All manuals and user guides at all-guides.com PLASMA ARC CUTTING SAFETY PRECAUTIONS WARNING PLASMA ARC CUTTING can be hazardous. PROTECT YOURSELF AND OTHERS FROM POSSIBLE SERIOUS INJURY OR DEATH. KEEP CHILDREN AWAY. PACEMAKER WEARERS KEEP AWAY UNTIL CONSULTING YOUR DOCTOR. In cutting, as in most jobs, exposure to certain hazards occurs.
  • Page 4 All manuals and user guides at all-guides.com FUMES AND GASES can be hazardous 5. Work in a confined space only if it is well ventilated, or while wearing an air-supplied respirator. Fumes from cutting and to your health. oxygen depletion can alter air quality causing injury or death. Be Cutting produces fumes and gases.

  • Page 5: Table Of Contents

    ............. . . Figure 6-1. Torch, MC-80 (Hand-Held) .
  • Page 6 All manuals and user guides at all-guides.com...

  • Page 7: Section 1 - Safety Information

    All manuals and user guides at all-guides.com SECTION 1 – SAFETY INFORMATION mod1.1 2/93 Read all safety messages throughout this manual. Obey all safety messages to avoid injury. Learn the meaning of WARNING and CAUTION. Safety Alert Symbol Signal Word WARNING means possible death or serious injury can happen.

  • Page 8: Duty Cycle

    All manuals and user guides at all-guides.com Inches Millimeters Hand-Held Torch 10-1/2 1-3/8 1-1/4 1-5/16 13-11/16 Machine-Held Torch Ref. ST-800 895 / Ref. ST-801 208 Figure 2-1. Overall Dimensions 2-1. Duty Cycle CAUTION CUTTING LONGER THAN RATED DUTY CYCLE can damage cutter and torch and void warranty. •...

  • Page 9: Section 3 - Installation

    All manuals and user guides at all-guides.com SECTION 3 – INSTALLATION 3-1. Installing Hand-Held Torch WARNING ELECTRIC SHOCK can kill. HOT PARTS can cause severe burns. • • Do not touch live electrical parts. Allow cooling period before maintaining or servicing. •...

  • Page 10: Installing Machine-Held Torch And Remote Trigger Pendant

    All manuals and user guides at all-guides.com 3-2. Installing Machine-Held Torch And Remote Trigger Pendant WARNING ELECTRIC SHOCK can kill. HOT PARTS can cause severe burns. • • Do not touch live electrical parts. Allow cooling period before maintaining or servicing. •...

  • Page 11: Section 4 - Operating The Torch

    All manuals and user guides at all-guides.com SECTION 4 – OPERATING THE TORCH WARNING ELECTRIC SHOCK can kill. CUTTING can cause fire or explosion. • • Always wear dry insulating gloves. Do not cut near flammable material. • • Insulate yourself from work and ground. Provide protection from flying sparks.
  • Page 12 All manuals and user guides at all-guides.com CAUTION T I P AND EL ECT RO DE WEAR BEYO ND HITTING TORCH ON A HARD SURFACE to RECO MMENDED VAL UES or OPERAT I O N remove spatter can damage torch. •...
  • Page 13 All manuals and user guides at all-guides.com Figure 4-2. Sequence Of Plasma Arc Cutting (PAC) CAUTION HITTING TORCH ON A HARD SURFACE to remove T I P EL ECT RO DE WEAR BEYO ND spatter can damage torch. RECO MMENDED VAL UES or OPERAT I O N •...

  • Page 14: Section 5 - Maintenance & Troubleshooting

    All manuals and user guides at all-guides.com SECTION 5 – MAINTENANCE & TROUBLESHOOTING WARNING ELECTRIC SHOCK can kill. HOT PARTS can cause severe burns. • • Do not touch live electrical parts. Allow cooling period before maintaining or servicing. • Turn Off cutter, and disconnect input power before inspecting, maintaining, or servicing.

  • Page 15: Checking/Replacing Cup, Tip, And Electrode

    All manuals and user guides at all-guides.com 5-2. Checking/Replacing Cup, Tip, And Electrode CAUTION OVERTIGHTENING will strip threads. T I P AND EL ECT RO DE WEAR BEYO ND • RECO MMENDED VAL UES or OPERAT I O N Do not overtighten electrode, tip, and cup during assembly. •...

  • Page 16: Troubleshooting

    All manuals and user guides at all-guides.com 5-3. Troubleshooting WARNING ELECTRIC SHOCK can kill. HOT PARTS can cause severe burns. • • Do not touch live electrical parts. Allow cooling period before maintaining or servicing. • Turn Off cutter, and disconnect input power before inspecting, maintaining, or servicing.

  • Page 17: Section 6 - Parts List

    SECTION 6 – PARTS LIST Item Part Description Quantity Figure 6-1. Torch, MC-80 (Hand-Held) ... . . 172 385 TORCH, body assembly (consisting of) ....... .
  • Page 18 All manuals and user guides at all-guides.com Item Part Description Quantity Figure 6-3. Torch, MC-80 (Machine) ... . . 175 833 TORCH, body assembly (consisting of) ....... .
  • Page 19 All manuals and user guides at all-guides.com Effective January 1, 2000 (Equipment with a serial number preface of “LA” or newer) This limited warranty supersedes all previous Miller warranties and is exclusive with no other Warranty Questions? guarantees or warranties expressed or implied.
  • Page 20 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. Contact your Distributor for: Welding Supplies and Consumables Options and Accessories...

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