Miller Electric OM-4409 Adjusting Engine Speed, Do not set engine speed higher than specified

Models: OM-4409

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9-6. Adjusting Engine Speed

! Stop engine and let cool.

Engine speed is factory set and should not require adjustment. Af- ter tuning engine, check engine no load speed with a tachometer or fre- quency meter (see table for no load speeds). If necessary, adjust speed as follows:

Start engine and run until warm.

Turn Process/Contactor switch to Weld Terminals Always On − Stick position.

1 Throttle Rod

2 Locknut

Loosen locknuts. Place engine control switch in Run/Idle position.

Wait 15 seconds for throttle sole- noid to energize and lower engine speed to idle rpm.

Turn throttle rod to adjust idle speed. Tighten locknuts.

3 Engine Speed Adjustment Screw

4 Locknut

Place engine control switch in Run position.

Loosen locknut. Turn screw to ad- just weld/power speed. Tighten locknut.

. Do not set engine speed higher than specified.

! Stop engine.

Close door.

2

1

2

1850 rpm Max.

(61.6 Hz)

1235 rpm

(41.1 Hz)

3

4

Tools Needed:

3/8, 7/16 in

803 228 / 802 313-A

OM-4409 Page 48

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Miller Electric OM-4409 manual Adjusting Engine Speed, Do not set engine speed higher than specified

OM-4409 specifications

The Miller Electric OM-4409 is a remarkable welding machine designed for both professional welders and enthusiastic hobbyists. Known for its reliability and efficiency, the OM-4409 stands out in the industrial landscape due to its advanced features and innovative technologies.

One of the main features of the OM-4409 is its impressive power output. With a rated output of 400 amps, it is capable of tackling a variety of welding applications, including MIG, TIG, and stick welding. This versatility allows users to switch between welding processes depending on the project requirements while ensuring consistent quality and performance.

The machine incorporates advanced inverter technology, which enhances its overall efficiency. Inverter technology allows for a compact design without sacrificing performance. The OM-4409 weighs significantly less than traditional transformer-based machines, making it more portable and easier to transport. Additionally, the inverter technology ensures that energy consumption is kept to a minimum, reducing operational costs.

Another notable characteristic of the Miller Electric OM-4409 is its user-friendly interface. The intuitive control panel provides easy access to settings and adjustments, allowing welders to fine-tune the machine to their specific needs. The digital display shows crucial parameters such as voltage, amperage, and wire feed speed, enabling welders to monitor their progress in real-time effectively.

Safety is paramount in industrial applications, and the OM-4409 does not disappoint. It is equipped with advanced safety features, including thermal overload protection and fault indication systems. These features ensure that the machine operates within safe limits, protecting both the user and the equipment.

The OM-4409 also boasts a robust build quality, designed to withstand the rigors of daily use in demanding environments. Its durable construction ensures longevity, minimizing maintenance and downtime.

In summary, the Miller Electric OM-4409 welding machine is a powerhouse that combines power, efficiency, and user-friendliness. With its inverter technology, versatility across various welding processes, advanced safety features, and robust design, it represents an excellent investment for any welding professional looking to enhance their capabilities. Whether for heavy-duty industrial applications or intricate metalwork, the OM-4409 delivers unmatched performance and reliability.