Instruction/ maintenance manual of the product MARK VIII-2 Miller Electric
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Proces ses OM -218 029 920Z July 2005 MARK VIII-2 V isit our website at www.MillerWelds.com Description Air Carbon Arc (CAC-A) Cut- ting and Gouging TIG (GT A W ) W elding Stick (SMAW ) W elding MIG (.
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 specification sheets. T o locate your nearest distributor or service agency call 1-800-4-A-Miller , or visit us at www .
T ABLE OF CONTENTS SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Symbol Usage 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Notes.
OM-218 Page 1 SECTION 1 − SAFETY PRECAUTIONS - READ BEFORE USING som _3/05 Y W arning: Protect yourself and others from injury — read and follow these precautions. 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.
OM-218 Page 2 Arc rays from the w elding process produce intense visible and invisible (ultraviolet and infrared) rays that can burn eyes and skin. Sparks fly off from the weld.
OM-218 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-218 Page 4 1-5. Principal Safety Standards Safety i n W elding, Cutting, and Allied Processes, ANSI Standard Z49.1, from Global Engineering Documents (phone: 1-877-413-5184, website: www .
OM-218 Page 5 SECTION 2 − CONSIGNES DE SÉCURITÉ − LIRE A V ANT UTILISA TION som _3/05 Y A vertissement : se protéger et protéger les autres contre le risque de blessure — lire et respecter ces consignes.
OM-218 Page 6 Le rayonnement de l’arc du procédé de soudage génère des rayons visibles et invisibles intenses (ultraviolets et infrarouges) susceptibles de provo- quer des brûlures dans les yeux et sur la peau. Des étincelles sont projetées pendant le soudage.
OM-218 Page 7 2-3 . Dange rs suppléme ntaires en r e lation avec l’installa tion, le f onc tionnement et l a maintenanc e Risque D’INCENDIE OU D’EXPLO- SION. D Ne pas placer l’appareil sur , au-dessus ou à proximité de surfaces inflammables.
OM-218 Page 8 2-5. Princi pales nor mes de sécur ité Safety in W elding, Cutting, and Allied Processes, ANSI Standard Z49.1, de Global Engineering Documents (téléphone : 1-877-413-5184, site In- ternet : www .
OM-218 Page 9 SECTION 3 − SPECIFICA TIONS 3-1. Specifications Rated Welding Output For Main Rated W elding Output For Each Amperes Input at Rated Load Output, 60 Hz, Three-Phase O utput For Main T r.
OM-218 Page 10 3-3. Duty Cycle And Overheating Duty Cycle is percentage of 10 min- utes that unit can weld at rated load without overheating. If unit overheats, thermostat(s) opens, output stops, and cooling fan runs. Wait fifteen minutes for unit to cool.
OM-218 Page 1 1 SECTION 4 − INST ALLA TION ssb9.1 5/94 − ST -801 180 / ST-144 567-A 1 Lifting Eye 2 Lifting Forks Use lifting eye or lifting forks to move unit. If using lifting forks, extend forks beyond opposite side of unit. 3 Rating Label Use rating label to determine input power needs.
OM-218 Page 12 4-2. Dimensions, Weights And Base Mounting Hole Layout Overall dimensions (A, B, and C) include lifting eye, handles, hardware, etc. NOTE Dimensions A 77-1/4 in (1943 mm) B 72 in (1829 .
S-0008-C OM-218 Page 13 4-4. W eld Cable Size T otal Cable (Copper) Length In Weld Circuit Not Exceeding* 50 ft Or Less (15m) 100 ft (30m) 150 ft (45 m) 200 ft (60 m) 250 ft (70 m) 300 ft (90 m) 350 f.
OM-218 Page 14 4-5. Connecting Weld Output Cables 803 778-B Y T urn off power before connecting to weld output terminals. Y Failure to properly connect weld cables may cause excessive heat an d start a fire, or damage your ma- chine.
OM-218 Page 15 A. Standard Module Connections ST-144 568-C 1 Cable Restraint Route all cables under cable restraint. Separate W ork Connections See Section 4-4 for proper cable size.
OM-218 Page 16 B. Parallel Module Connections 1 Cable Restraint Route all cables under cable restraint. Separate W ork Connections See Section 4-4 for proper cable size.
OM-218 Page 17 ST-144 570-A / Ref. ST -174 143 1 Remote Amperage Control Receptacles RCX1 (“X” Represents The Number Of The Applicable Module 1 − 8) The twistlock receptacle in each module provides a connection point for an optional remote amperage control.
OM-218 Page 18 Ref. ST-144 570-A / Ref. SC-085 382 1 1 15 V olts AC Duplex Receptacle RC2 This receptacle supplies up to 10 amperes of 1 15 volts a c pow er . The duplex receptacle is protected from overload by supplementary protector CB1 (see Section 6-2).
OM-218 Page 19 B. Connecting Input Power ssb2.4* 1/94 − Ref. ST-144 569-B T ools Needed: 3/8 in 1-1/16 in 7 10 8 4 9 6 Y Installation must meet all National a nd Local Codes − have only qualified per- sons make this installation. Y Disconnect and lockout/tagout input power before connecting input con- ductors from unit.
OM-218 Page 20 4-1 1. Electrical Service Guide Input V oltage 220 230 380 440 460 575 Input Amperes At Rated Output 178 170 103 89 85 68 Max Recommended Standard Fuse Rating In Amperes 1 T ime-Delay 2.
OM-218 Page 21 Ref. ST-174 143 1 Remote Amperage Control Switch Fo r front panel control of a module, place switch on that module in Off position. For remote control, place switch in On position. See Example below . 2 Amperage Adjustment Control Use control at each module to select weld amperage for that mod- ule.
OM-218 Page 22 SECTION 6 − MAINTENANCE & TROUBLESHOOTING ST-144 567-A 3 Months Clean And T ighten W eld T erminals 6 Months T ape Or Replace Cracked Cables Replace Unreadable Labels Fan Motor Sealed Bearings − No Oil Needed OR During Heavy Service, Clean Monthly Blow Out Or V acuum Inside See Section 4-6 − − 10 − − − − 6-1.
OM-218 Page 23 B. Control Fuses F3 And F4 Ref. ST-144 569-B / Ref. ST -146 126-C T urn Off polyweld system and dis- connect input power . 1 Input T erminal Board 2 Fuses F3 And F4 Location 3 Fuse F3 Or F4 (See Parts List For Rating) 4 Fuse Holder Check F3 or F4, and replace if needed.
OM-218 Page 24 6-4. T roubleshooting Y T urn Off polyweld system, and disconnect input power before inspecting, maintaining, or servicing. T rouble Remedy No weld output from any module; fan motors of f; pilot light off. Place line disconnect device in On position (see Section 4-10 ).
OM-218 Page 25 Notes.
OM-218 Page 26 SECTION 7 − ELECTRICAL DIAGRAM Figure 7-1. Circuit Diagram For Polyweld System.
OM-218 Page 27 SD-082 527-C.
OM-218 Page 28 SECTION 8 − SELECTING AND PREP ARING TUNGSTEN ELECTRODE gtaw 7/97 For additional information, see your distributor for a handbook on the Gas T ungs ten Ar c W elding (G T AW) process.Wear clean gloves to prev ent contamination of tungsten electrode.
OM-218 Page 29 8-2. Preparing T ungsten For AC Or DC Electrode Positive (DCEP) Welding Ref. S-0161 1 T ungsten Electrode 2 Balled End Y Understand and follow safety symbols at start of Section 9-1 before preparing tungsten.
OM-218 Page 30 SECTION 9 − GUIDELINES FOR TIG WELDING (GT A W) 9-1. Positioining The T orch ST-161 892 Y W eld current can damage electronic parts in vehicles. Disconnect both battery cables before welding on a vehicle. Pl ace wor k cl amp as close t o the weld as possible.
OM-218 Page 31 9-3. Positioning T orch T ungsten For V arious Weld Joints ST-162 003 / S-0792 70 ° 70 ° 90 ° 20 ° 20 ° 10 ° 20 ° 70 ° 40 ° 30 ° 20 ° 70 ° 90 ° 20 ° Butt Weld And Stringer.
OM-218 Page 32 SECTION 10 − P ARTS LIST 1 2 3 4 5 6 7 8 9 10 16 17 18 19 20 23 24 8 5 6 ST-144 531-D 25 . Hardware is common and not available unless listed.
OM-218 Page 33 Description Part No. Dia. Mkgs. Item No. Figure 10-1. Main Assembly (Section A) Quantity 1 FM1,2 032 605 MOTOR, cap perm SP 1/4hp 230V AC 1625RPM 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 071 763 FRAME, mtg fan motor 2 .
OM-218 Page 34 1 2 3 4 5 6 8 9 10 7 ST-144 660 . Hardware is common and not available unless listed. Figure 10-2. Main Assembly (Section B).
OM-218 Page 35 Description Part No. Dia. Mkgs. Item No. Figure 10-2. Main Assembly (Section B) Quantity 1 CR1 194 307 CONT ACTOR, def prp 40A 3P 120V 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 T3 092 324 TRANSFORMER, kV A 1 1 15-230/460/575 1 .
OM-218 Page 36 Description Part No. Dia. Mkgs. Item No. Figure 10-3. Panel, Front Module w/Components (Fig 10-1 Item 24) Quantity 1 034 253 DOOR, access pwr output (includes) 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OM-218 Page 37 Description Part No. Dia. Mkgs. Item No. Figure 10-4. Panel, Front Lower w/Components (Fig 10-1 Item 25) Quantity 1 +086 855 P ANEL, front lower 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Notes.
Warranty Questions? Call 1-800-4-A-MILLER for your local Miller distributor. miller_warr 1/05 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 .
PRINTED IN USA © 2005 Miller Electric Mfg. Co. 1/05 Miller Elect ric Mfg. Co. An Illinois T ool W orks Compa ny 1635 West S pencer S treet Applet on, WI 5 4914 US A International He adquarters − US.
An important point after buying a device Miller Electric MARK VIII-2 (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 MARK VIII-2 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 MARK VIII-2 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Miller Electric MARK VIII-2 you will learn all the available features of the product, as well as information on its operation. The information that you get Miller Electric MARK VIII-2 will certainly help you make a decision on the purchase.
If you already are a holder of Miller Electric MARK VIII-2, 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 MARK VIII-2.
However, one of the most important roles played by the user manual is to help in solving problems with Miller Electric MARK VIII-2. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Miller Electric MARK VIII-2 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
