Instruction/ maintenance manual of the product XMT 4-Rack Miller Electric
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Processes Description Multiprocess W elding Mounting Rack For Up T o Four XMT 300 W elding Power Sources With AUT O-LINK And Requiring 230/460 V olt Input Power OM-815 October 1994 Eff. w/Serial Number KC310301 XMT 4-Rack R Visit our website at www.
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 .
Miller offers a T echnical Manual which provides more detailed service and parts information for your unit. T o obtain a T echnical Manual, contact your local distributor . Y our distributor can also supply you with W elding Process Manuals such as SMAW , GT AW , GMAW , and GMAW -P .
OM-815 Page 1 SECTION 1 – SAFETY PRECAUTIONS - READ BEFORE USING som _nd_5/97 1-1. Symbol Usage Means W arning! W atch Out! There are possible hazards with this procedure! The possible hazards are shown in the adjoining symbols. Y Marks a special safety message.
OM-815 Page 2 Arc rays from the welding process produce intense visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin. Sparks fly off from the weld. ARC RA YS can burn eyes and skin. D Wear a welding helmet fitted with a proper shade of filter to protect your face and eyes when welding or watching (see ANSI Z49.
OM-815 Page 3 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.
OM-815 Page 4 1-5. EMF Information Considerations About W elding And The Effects Of Low Frequency Electric A n d M a g netic Fields W elding current, as it flows through welding cables, will cause electro- magnetic fields. There has been and still is some concern about such fields.
OM-815 Page 5 SECTION 2 – 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.
OM-815 Page 6 SECTION 4 – INST ALLA TION 4-1. Selecting A Location And Moving Rack W ARNING 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.
OM-815 Page 7 4-3. W elding Power Source Input Power Connections W ARNING ELECTRIC SHOCK can kill. • Do not touch live electrical parts. • T urn Of f welding power source, and disconnect input power to rack before inspecting or installing. • Have only qualified persons install unit.
OM-815 Page 8 4-4. Common Work Connections ELECTRIC SHOCK can kill. • Do not touch live electrical parts. • T urn Off welding power sources by placing Power circuit breakers in the Of f position before making any weld output connections. • Do not connect welding output of dif ferent polarities to the same structure.
OM-815 Page 9 4-5. Paralleling W elding Power Sources For SMA W ELECTRIC SHOCK can kill. • Do not touch live electrical parts. • T urn Off welding power sources by placing Power circuit breakers in the Of f position before making any weld output connections.
OM-815 Page 10 4-6. Connecting Input Power T o Rack W ARNING ELECTRIC SHOCK can kill. • Do not touch live electrical parts. • T urn Of f welding power sources before inspecting or installing rack. • Have only qualified persons install rack. • Installation must meet National Electrical Code and all other codes.
Ref. S-0092-G OM-815 Page 1 1 T able 4-2. Electrical Service Requirements* Input V oltage 230 460 Recommended Standard Fuse Or Circuit Breaker Rating In Amperes 1 250 125 Input Conductor Size In A WG/.
OM-815 Page 12 5-2. Overload Protection 1 Power Circuit Breakers CB1-CB4 Each Power circuit breaker CB1 through CB4 protects the welding power source connected to it from overload. If a Power circuit breaker opens, th e matching welding power source would shut down.
OM-815 Page 13 SECTION 6 – ELECTRICAL DIAGRAM SA-155 857 Figure 6-1. Circuit Diagram For Rack Control Box.
OM-815 Page 14 SECTION 7 – P ARTS LIST Description Part No. Item No. Figure 7-1. Main Assembly Quantity 1 155 878 COVER, top 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OM-815 Page 15 ST-158 152 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 12 11 23 22 21 20 19 18 17 . Hardware is common and not available unless listed. Figure 7-2.
OM-815 Page 16 Description Part No. Dia. Mkgs. Item No. Figure 7-2. Control Box (Fig 7-1 Item 14) Quantity 1 155 846 COVER, top control box 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty Questions? Call 1-800-4-A-MILLER for your local Miller distributor. miller_warr 7/00 Y o ur 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 .
PRINTED IN USA 2000 Miller Electric Mfg. Co. 6/00 Miller Elect ric Mfg. Co. An I l li noi s T ool Works Company 1635 W est Spencer Street Applet on, W I 5 4914 USA International He adquarters – .
An important point after buying a device Miller Electric XMT 4-Rack (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Miller Electric XMT 4-Rack yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Miller Electric XMT 4-Rack - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Miller Electric XMT 4-Rack you will learn all the available features of the product, as well as information on its operation. The information that you get Miller Electric XMT 4-Rack will certainly help you make a decision on the purchase.
If you already are a holder of Miller Electric XMT 4-Rack, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Miller Electric XMT 4-Rack.
However, one of the most important roles played by the user manual is to help in solving problems with Miller Electric XMT 4-Rack. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Miller Electric XMT 4-Rack along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center