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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. To locate your nearest
distributor or service agency call 1-800-4-A-Miller,
or visit us at www.MillerWelds.com on the web.

Thank you and congratulations on choosing Miller. Now
you can get the job done and get it done right. We know
you don’t have time to do it any other way.

That’s why when Niels Miller first started building arc
welders in 1929, he made sure his products offered
long-lasting value and superior quality. Like you, his
customers couldn’t afford anything less. Miller products
had to be more than the best they could be. They had to
be the best you could buy.

Today, the people that build and sell Miller products continue the
tradition. They’re just as committed to providing equipment and service
that meets the high standards of quality and value established in 1929.

This Owner’s Manual is designed to help you get the most out of your
Miller products. Please take time to read the Safety precautions. They will
help you protect yourself against potential hazards on the worksite. We’ve

made installation and operation quick and easy.
With Miller you can count on years of reliable
service with proper maintenance. And if for
some reason the unit needs repair, there’s a
Troubleshooting section that will help you
figure out what the problem is. The parts list
will then help you to decide which exact part
you may need to fix the problem. Warranty and
service information for your particular model
are also provided.

Miller is the first welding
equipment manufacturer in
the U.S.A. to be registered to
the ISO 9001 Quality System
Standard.

Working as hard as you do
– every power source from
Miller is backed by the most
hassle-free warranty in the
business.

From Miller to You

Miller offers a Technical
Manual which provides
more detailed service and
parts information for your
unit. To obtain a Technical
Manual, contact your local
distributor. Your distributor
can also supply you with
Welding Process Manuals
such as SMAW, GTAW,
GMAW, and GMAW-P.

Summary of Contents for MOG-200C

Page 1: ...to the operator For help call your distributor or MILLER Electric Mfg Co P O Box 1079 Appleton WI 54912 414 734 9821 OWNER S MANUAL OM 805 079 869D May 1994 Multiple Operator Resistance Grids MOG For...

Page 2: ...alue established in 1929 This Owner s Manual is designed to help you get the most out of your Miller products Please take time to read the Safety precautions They will help you protect yourself agains...

Page 3: ...ce intense visible and invisible ultraviolet and infrared rays that can burn eyes and skin Noise from some processes can damage hearing Chipping grinding and welds cooling throw off pieces of metal or...

Page 4: ...nds and catch loose clothing 1 Keep all doors panels covers and guards closed and securely in place 2 Stop engine before installing or connecting unit 3 Have only qualified people remove guards or cov...

Page 5: ...To reduce magnetic fields in the workplace use the following procedures 1 Keep cables close together by twisting or taping them 2 Arrange cables to one side and away from the operator 3 Do not coil or...

Page 6: ......

Page 7: ...can injure Keep away from moving parts Keep all panels and covers closed when operating 3 Turn Off switch when using high frequency Figure 1 1 Safety Information SECTION 2 SPECIFICATIONS Table 2 1 Re...

Page 8: ...o unit Do not block or filter airflow Warranty is void if any type of filter is used FUMES can be hazardous LACK OF FRESH AIR AND PROPER VENTILATION can be harmful Do not breathe welding fumes Place u...

Page 9: ...hole size for connecting to common work electrode hold er s and weld output terminals if applicable 5 Common Work Connection Connect work cable to common work according to codes 6 Insulated Electrode...

Page 10: ...ure by tapping pin into place Tools Needed 7 32 in 1 1 in 2 4 26 mm 3 5 6 Figure 3 4 Female Camlok Connector Assembly sb6 4 11 92 ST 155 015 1 Weld Output Cable Strip insulation as shown 2 Copper Stri...

Page 11: ...flammable material Watch for fire keep extinguisher nearby Do not locate unit over combustible surfaces Do not weld on closed containers Allow work and equipment to cool before handling ARC RAYS can...

Page 12: ...T VOLTS exists between electrode holders of opposite polarity Do not touch live electrical parts Do not touch electrode holders of opposite polarity at the same time Separate electrode holders of oppo...

Page 13: ...ne Amperage Control Use control to add amperage in 5 ampere steps to weld output In Example Total Amperage Output 122 5 A 100 A 20 A 2 5 A 2 3 1 Figure 4 5 Amperage Controls Begin Welding ssb7 1 9 92...

Page 14: ...severe burns Allow cooling period before maintaining or servicing Maintenance to be performed only by qualified persons swarn8 1 2 93 5 1 Routine Maintenance Turn Off all power before maintaining Ref...

Page 15: ...ation 5 3 Troubleshooting WARNING ELECTRIC SHOCK can kill Do not touch live electrical parts Turn Off welding power source and disconnect input power before inspecting maintaining or servicing HOT PAR...

Page 16: ...OM 805 Page 10 SECTION 6 ELECTRICAL DIAGRAMS SA 162 468 Figure 6 1 Circuit Diagram For Models Without Polarity Switch SA 047 615 C Figure 6 2 Circuit Diagram For Models With Polarity Switch...

Page 17: ...OM 805 Page 11 NOTES...

Page 18: ...RTS LIST 2 3 4 5 6 7 8 9 10 11 1 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 SD 080 149 D Figure 7 1 Complete Assembly MOG 2...

Page 19: ...e 1 17 059 764 HANDLE carrying 4 4 18 010 853 FASTENER scr sltd hd No 2 1 1 19 010 855 RETAINER screw No 2 1 1 20 010 854 NUT speed No 2 clip on 1 1 21 059 780 PANEL rear 1 21 110 705 PANEL rear 1 22...

Page 20: ...ITCH tgl SPDT 15A 125VAC 1 1 49 059 933 WASHER flat mica 750 ID x 1 500 OD x 030thk 2 2 50 R7 059 932 RESISTOR WW fxd 175W 20 ohm 1 1 51 057 430 WASHER ctrg spcl No 18 1 1 52 081 016 BRACKET mtg resis...

Page 21: ...OM 805 Page 15 Notes...

Page 22: ...OM 805 Page 16 Notes...

Page 23: ...ting Torches Remote Controls Accessory Kits Replacement Parts No labor Spoolmate 185 Spoolmate 250 Canvas Covers Miller s True Blue Limited Warranty shall not apply to 1 Consumable components such as...

Page 24: ...complete and retain with your personal records Always provide Model Name and Serial Style Number Call 1 800 4 A Miller or see our website at www MillerWelds com to locate a DISTRIBUTOR or SERVICE AGEN...

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