6-3. Troubleshooting

 

Y Disconnect power before troubleshooting

Trouble

Remedy

Wire feeds, shielding gas flows, but

Check interconnecting cord connections. If secure, check cord for continuity and repair or replace

electrode wire is not energized.

(see Sections 4-5and 4-6).

Wire feeder is on, display does not

Check and reset circuit breaker at welding power source.

light up, motor does not run, gas valve

 

and welding power source contactor do

 

not pull in.

 

Electrode wire feeding stops or feeds

Check gun trigger connection. See gun Owner’s Manual.

erratically during welding.

Check gun trigger. See gun Owner’s Manual.

 

 

Readjust hub tension and drive roll pressure (see Section 4-11).

 

Change to correct size drive roll (see Table 8-1).

 

Clean or replace dirty or worn drive roll.

 

Incorrect size or worn wire guides.

 

Replace contact tip or liner. See gun Owner’s Manual.

 

Remove weld spatter or foreign matter from around nozzle opening.

 

Have Factory Authorized Service Agency check drive motor or motor control board PC1.

Motor runs slowly.

Check for correct input voltage.

Wire feeder power is on, displays light

Check welding gun trigger leads for continuity, and repair leads or replace gun.

up, unit jogs and purges but will not

 

trigger.

 

OM-1500−11 Page 21

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Miller Electric SS-74S12, SS-74D12, SS-74S16 manual Troubleshooting, Disconnect power before troubleshooting, Trouble Remedy

SS-74D12, SS-74S16, and SS-74D16, SS-74S12 specifications

Miller Electric has long been a leader in the field of welding equipment, and their range of gas-powered engine-driven welding machines showcases innovative technology designed for efficiency, reliability, and versatility. Among these products, the Miller SS-74S12, SS-74D16, SS-74S16, and SS-74D12 models stand out, providing robust solutions tailored for a variety of welding applications.

The SS-74S12 is a standout model, known for its smooth operation and user-friendly interface. At the heart of this machine lies a powerful engine that delivers consistent performance, making it ideal for remote job sites where access to power may be limited. The SS-74S12 features advanced inverter technology, ensuring optimal energy consumption without sacrificing welding quality. Its lightweight design enhances portability, allowing for convenient transport across different work sites.

Next in the lineup is the SS-74D16, which caters to users who require increased versatility. This machine incorporates dual-voltage capabilities, enabling it to operate effectively with either 120V or 240V power sources. This flexibility makes it a prime choice for contractors who frequently switch between residential and industrial projects. Additionally, the SS-74D16 is equipped with a digital display, providing real-time feedback on welding parameters, which improves user experience and accuracy.

The SS-74S16 model brings similar features to the table but with a focus on increased duty cycle. This characteristic is particularly advantageous for those engaged in heavy-duty fabrication work where extended periods of operation are commonplace. The enhanced cooling system ensures that the machine remains operational without overheating, allowing for longer, uninterrupted work sessions.

Finally, the SS-74D12 model is tailored for users who prioritize compact designs without compromising performance. This model combines the advantages of the other machines in a space-saving format, making it an excellent choice for workshops or job sites with limited space. The SS-74D12 also emphasizes fuel efficiency, allowing for lower operating costs over time, which is critical for businesses working with budget constraints.

Together, these models from Miller Electric represent a blend of advanced technology and practical features that cater to the needs of modern welders. Whether requiring mobility, versatility, durability, or compactness, users can find a model that fits their specific welding requirements, all while upholding Miller Electric’s reputation for quality and performance in the industry.