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OM-805 Page 1

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.

1

Safety Alert Symbol

2

Signal Word

WARNING means possible death
or serious injury can happen.

CAUTION means possible minor
injury or equipment damage can
happen.

3

Statement Of Hazard And Re-
sult

4

Safety Instructions To Avoid
Hazard

5

Hazard Symbol (If Available)

6

Safety Banner

Read safety blocks for each sym-
bol shown.

7

NOTE

Special instructions for best oper-
ation – not related to safety.

2

NOTE

ELECTRIC SHOCK can kill.

Do not touch live electrical parts.

Disconnect  input power before
installing  or servicing.

WARNING

READ SAFETY BLOCKS at start of
Section 3-1 before proceeding.

WARNING

5

4

6

7

1

2

CAUTION

MOVING PARTS 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. Resistance Grid

Specification

Description

Weld Amperage Adjustment

Coarse: 50 Ampere Steps; Fine: 5 Ampere Steps; Optional: 2-1/2 Ampere*

Overall Dimensions

Height: 12 in (305 mm); Width: 10 in (254 mm); Length: 28 in (711 mm)

Rated Welding Amperes Output

195 Amperes At 25 VDC, 100% Duty Cycle

Weight

Net: 35 lb (16 kg); Ship: 39 lb (18 kg)

*Units with Polarity switch include a 2-1/2 Ampere switch.

SECTION 3 – INSTALLATION

3-1.

Typical Multiple Operator System Component Relationships

WARNING

ELECTRIC SHOCK can kill; TWO TIMES NORMAL OPEN-CIRCUIT VOLTS exists between elec-
trode 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 opposite polarity to prevent contact.

Consult ANSI Z49.1 for common grounding safe practices.

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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