Miller Electric OM-842 Dia Part Mkgs Description Quantity, 078 010, 110, PLG13,31 155, PC8 157

Models: OM-842

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Item

Dia.

Part

 

 

 

No.

Mkgs.

No.

Description

Quantity

 

 

 

 

Figure 9-1. Main Assembly

 

 

 

 

 

 

 

. . .

1 . . .

. . . . . . . . .

. . . . . . . . . . . .

. . NAMEPLATE, (order by model and serial number)

. . . 1

. . .

2 . . .

. . . . . . . . .

. . . 158 955

. . COVER, front electrical

. . . 1

. . .

3 . . .

. . . . . . . . .

. . . 078 034

. . FASTENER, screw sltd hd .736 lg

. . . 1

. . .

4 . . .

. . . . . . . . .

. . . 010 855

. . RETAINER, screw No. 2

. . . 1

. . . 5 . . .

. . . . . . . . .

. . . 110 375

. . STAND-OFF SUPPORT, PC card No. 6 screw

. . . 4

. . . 6 . . PLG13,31

. . 155 511

. . CABLE, ribbon 10posn

. . . 1

. . . 7 . . . . . PC8 . .

. . . 157 741

. . CIRCUIT CARD, meter

. . . 1

. . .

8 . . . . . PC9 . .

. . . 156 046

. . DISPLAY, LED 2 x 20 alphanumeric fluorescent

. . . 1

. . . . . . . . .

. PLG33 .

. . . 156 045

. . CONNECTOR, rect 14skt plug Amp 1-640440-4

. . . 1

. . . 9 . . PLG19,29

. . 142 138

. . CABLE, ribbon 14posn

. . . 1

. . . 10 . . .

. . PC7 . .

. . . 151 518

. . CIRCUIT CARD, switch

. . . 1

. . . . . . . . .

. PLG30 .

. . . 115 094

. . CONNECTOR & SOCKETS

. . . 1

. . . 11 . . .

. . . . . . . . .

. . . 157 792

. . STRAP, grounding panel front

. . . 1

. . . 12 . . .

. . . . . . . . .

. . . 107 551

. . STRAIN RELIEF, cover

. . . 1

. . . 13 . . .

. . . . . . . . .

. . . 010 494

. . BUSHING, snap-in nyl 1.375 ID x 1.750mtg hole

. . . 2

. . . 14 . . .

. . PC3 . .

. . . 157 737

. . CIRCUIT CARD, relay

. . . 1

. . . 15 . . .

PLG4,9

. . . 142 142

. . CABLE, ribbon 14posn

. . . 1

. . . 16 . . .

. . PC2 . .

. . . 157 802

. . CIRCUIT CARD, filter

. . . 1

. . . 17 . . .

PLG7,12

. . . 142 141

. . CABLE, ribbon 40posn

. . . 1

. . . 18 . . .

. . LF1 . . . . . 084 171

. . FILTER, line pwr 115/250V

. . . 1

. . . 19 . . .

. . . . . . . . .

. . . 144 713

. . ELECTRONICS BOX

. . . 1

. . . 20 . . .

. . . . . . . . .

. . . 134 201

. . STAND-OFF SUPPORT, PC card .312/.375

. . . 20

. . . 21 . . .

. . . . . . . . .

. . . 098 691

. . STAND-OFF, 6-32 x .500 lg

. . . 4

. . . 22 . . .

. . PC6 . .

. . . 180 158

. . CIRCUIT CARD, interface

. . . 1

. . . . . . . . .

. PLG24 .

. . . 153 501

. . CONNECTOR & SOCKETS

. . . 1

. . . . . . . . .

. PLG26 .

. . . 148 439

. . CONNECTOR & SOCKETS

. . . 1

. . . . . . . . .

. PLG28 .

. . . 158 720

. . CONNECTOR & SOCKETS

. . . 1

. . . . . . . . .

. PLG32 .

. . . 153 501

. . CONNECTOR & SOCKETS

. . . 1

. . . 23 . .

PLG20,25

. . 155 427

. . CABLE, ribbon 24posn

. . . 1

. . . 24 . . .

. . PC5 . .

. . . 151 648

. . CIRCUIT CARD, microprocessor

. . . 1

. . . . . . . . .

. PLG21 .

. . . 152 249

. . CONNECTOR & SOCKETS

. . . 1

. . . . . . . . .

. PLG22 .

. . . 148 439

. . CONNECTOR & SOCKETS

. . . 1

. . . 25 . .

PLG14,23

. . 153 599

. . CABLE, ribbon 40posn

. . . 1

. . . 26 . . .

. . PC1 . .

. . . 182 090

. . CIRCUIT CARD, control main

. . . 1

. . . . . . . . .

. PLG15 .

. . . 148 439

. . CONNECTOR & SOCKETS

. . . 1

. . . . . . . . .

. PLG16 .

. . . 150 317

. . CONNECTOR, rect 4 pin/skt plug Amp 172167-1

. . . 1

. . . . . . . . .

. . . . . . . . .

. . . 147 995

. . CONNECTOR, rect skt 22-18ga Amp 170362-3

. . . 4

. . . 27 . . .

. . . . . . . . .

. . . 158 960

. . STRIP, mtg door

. . . 1

. . . 28 . . .

. . . . . . . . .

. . . 073 756

. . STAND-OFF, 6-32 x .625 lg

. . . 5

. . . 29 . . .

. . . S1 . . . . . 125 945

. . SWITCH, key 3posn .750mtg hole

. . . 1

. . . 30 . . .

. . . . . . . . .

. . . 115 360

. . KNOB, arrow

. . . 1

. . . 31 . . .

. . . . . . . . .

. . . 115 359

. . CAP, peaked

. . . 1

. . . 32 . . .

. . . . . . . . .

. . . 089 186

. . ACTUATOR, switch

. . . 4

. . . 33 . . .

. . RC3 . .

. . . 073 687

. . CONNECTOR, circ 4skt rcpt Amphenol MS-3102A-14S-2S

. . . 1

. . . 34 . . .

C16-19

. . . 157 856

. . CAPACITOR

. . . 4

. . . 35 . . .

. . . . . . . . .

. . . 603 107

. . HOSE, nprn slit bk .156 ID x .343 OD (order by ft)

. . . 1ft

. . . 36 . . .

. . . . . . . . .

. . . 158 959

. . DOOR, access terminal strip

. . . 1

. . . 37 . . .

. 3T,4T . . . . 038 833

. . BLOCK, term 20A 13P

. . . 2

. . . 38 . . .

. . . . . . . . .

. . . 126 908

. . BEZEL/FILTER, blue filter/nonglare 4 in

. . . 1

. . . 39 . . .

. . . . . . . . .

. . . 071 230

. . BEZEL/FILTER, blk bezel/red filter 2.000 viewing

. . . 2

To maintain the factory original performance of your equipment, use only Manufacturer’s Suggested Replacement Parts. Model and serial number required when ordering parts from your local distributor.

OM-842 Page 53

Page 57
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Miller Electric OM-842 Dia Part Mkgs Description Quantity, NAMEPLATE, order by model and serial number 158, 078 010, 110

OM-842 specifications

The Miller Electric OM-842 is a versatile and powerful multi-process welding machine designed for professional welders who demand efficiency and reliability on the job. This industrial-grade welder is capable of handling various welding processes, including MIG, TIG, stick, and flux-cored welding, making it an ideal choice for a wide range of applications.

One of the standout features of the OM-842 is its robust output capability. With a maximum output of 400 amps, it can tackle thick materials with ease while maintaining exceptional arc stability. This output range allows for adaptability in different welding scenarios, whether working on heavy fabrication projects or lighter home repairs.

The OM-842 is also equipped with advanced inverter technology. This technology enhances the machine's efficiency and reduces energy consumption. Inverter machines are known for their lightweight design compared to traditional transformer welders, which makes the OM-842 more portable and easier to transport between job sites.

User-friendliness is paramount in the design of the OM-842. Its intuitive control panel features a digital display that provides real-time information on parameters such as voltage and amperage. This allows users to make quick and precise adjustments on the fly, enhancing productivity and ensuring optimal welding results.

Additionally, the OM-842 offers sophisticated weld control features, such as Auto-Set, which simplifies the setup process for beginners and experienced users alike. This technology automatically selects optimal parameters based on the material type and thickness, minimizing trial and error during welding.

The machine also includes a durable and rugged design, suitable for tough working conditions. The protective case and high-quality components ensure longevity and reliability even in adverse environments.

Safety is another critical aspect of the OM-842, with features such as over-temperature protection and a built-in fan to prevent overheating during extended use.

With its powerful performance, advanced technology, and robust design, the Miller Electric OM-842 stands out as an exceptional choice for welders seeking reliability and versatility in their welding operations, ultimately creating high-quality welds across various applications. Whether in a shop or on a construction site, the OM-842 is engineered to deliver outstanding results every time.