Electric air-cooled plasma arc cutting (pac) torches (20 pages)
Summary of Contents for Miller Electric XMT 4-Rack
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OM-815 October 1994 Eff. w/Serial Number KC310301 Processes Multiprocess Welding Description Mounting Rack For Up To Four XMT 300 Welding Power Sources With AUTO-LINK And Requiring 230/460 Volt Input Power XMT 4-Rack Visit our website at www.MillerWelds.com...
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ISO 9001 Quality System Standard. service information for your 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 catalog sheets.
Call 1-800-4-A-MILLER for your local Miller distributor. SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING Your distributor gives you ... Service You always get the fast, reliable response you SECTION 2 – SAFETY INFORMATION need. Most replacement parts can be in your SECTION 3 –...
SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING 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. Means “Note”; not safety related. 1-2.
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D Do not use welder to thaw frozen pipes. D Remove stick electrode from holder or cut off welding wire at contact tip when not in use.
1-3. Additional Symbols For Installation, Operation, And Maintenance FIRE OR EXPLOSION hazard. D Do not install or place unit on, over, or near combustible surfaces. D Do not install unit near flammables. D Do not overload building wiring – be sure power supply system is properly sized, rated, and protected to handle this unit.
1-5. EMF Information Considerations About Welding And The Effects Of Low Frequency Electric And Magnetic Fields Welding current, as it flows through welding cables, will cause electro- magnetic fields. There has been and still is some concern about such fields. However, after examining more than 500 studies spanning 17 years of research, a special blue ribbon committee of the National Research Council concluded that: “The body of evidence, in the committee’...
SECTION 2 – SAFETY INFORMATION Read all safety messages throughout this manual. Obey all safety messages to avoid injury. Learn the meaning of WARNING and CAUTION. WARNING ELECTRIC SHOCK can kill. Do not touch live electrical parts. Disconnect input power before installing or servicing.
SECTION 4 – INSTALLATION 4-1. Selecting A Location And Moving Rack WARNING ELECTRIC SHOCK can kill. Do not touch live electrical parts. Disconnect input power conductors from de- energized supply line BEFORE moving rack. FIRE OR EXPLOSION can result from placing unit on, over, or near com- bustible surfaces.
4-3. Welding Power Source Input Power Connections WARNING ELECTRIC SHOCK can kill. Do not touch live electrical parts. Turn Off welding power source, and disconnect input power to rack before inspecting or installing. Have only qualified persons install unit. Installation must meet National Electrical Code and all other codes. NOTE When installing conductors from the welding power source, torque the Power circuit breaker terminals and grounding terminal to 40 in-lbs (4.5 N·m).
4-4. Common Work Connections WARNING ELECTRIC SHOCK can kill. Do not touch live electrical parts. Turn Off welding power sources by placing Power circuit breakers in the Off position before making any weld output connections. Do not connect welding output of different polarities to the same structure.
4-5. Paralleling Welding Power Sources For SMAW WARNING ELECTRIC SHOCK can kill. Do not touch live electrical parts. Turn Off welding power sources by placing Power circuit breakers in the Off position before making any weld output connections. Do not connect welding output of different polarities to the same structure.
4-6. Connecting Input Power To Rack WARNING ELECTRIC SHOCK can kill. Do not touch live electrical parts. Turn Off welding power sources before inspecting or installing rack. Have only qualified persons install rack. Installation must meet National Electrical Code and all other codes. OM-815 Page 10 Figure 4-6.
Table 4-2. Electrical Service Requirements* Input Voltage Recommended Standard Fuse Or Circuit Breaker Rating In Amperes Input Conductor Size In AWG/Kcmil Max Input Conductor Length In Feet (Meters) Grounding Conductor Size In AWG/Kcmil These values are calculated from the 1993 edition of the National Electrical Code (NEC). 1 Recommended fuse or circuit breaker size is that closest to 150% of rated input amperage of the welding power source.
5-2. Overload Protection 5-3. Troubleshooting WARNING ELECTRIC SHOCK can kill. Do not touch live electrical parts. Turn Off welding power sources, and disconnect input power to rack before inspecting, maintaining, or servicing. Troubleshooting to be performed only by qualified persons. Trouble No weld output from any welding power sources;...
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Warranty Questions? Call LIMITED WARRANTY – Subject to the terms and conditions below, Miller Electric Mfg. Co., Appleton, Wisconsin, warrants 1-800-4-A-MILLER to its original retail purchaser that new Miller equipment sold for your local after the effective date of this limited warranty is free of defects in material and workmanship at the time it is shipped by Miller.
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Parts) Circuit Diagrams Welding Process Handbooks File a claim for loss or damage during shipment. 2000 Miller Electric Mfg. Co. 6/00 Miller Electric Mfg. Co. An Illinois Tool Works Company 1635 West Spencer Street Appleton, WI 54914 USA International Headquarters–USA USA Phone: 920-735-4505 Auto-Attended USA &...