Operating Instructions, Welding Sparks | Lincoln Electric NA-5NF

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OPERATING INSTRUCTIONS

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SAFETY PRECAUTIONS

WARNING

ELECTRIC SHOCK can kill.

•Do not touch electrical- ly live parts or elec- trode with skin or wet clothing.

•Insulate yourself from work or ground.

•Always wear dry insu- lating gloves.

FUMES AND GASES can be dangerous.

•Keep your head out of

fumes.

• Use ventilation or exhaust to remove fumes from breathing zone.

WELDING SPARKS

can cause fire or explosion.

•Keep flammable mater- ial away.

•Do not weld on con- tainers that have held combustibles.

ARC RAYS can burn.

• Wear eye, ear, and body protection.

Observe additional Safety Guidelines detailed in the beginning of this manual.

OPERATOR’S

INSTRUCTIONS

Once the system is properly set up, the operator can make production welds without readjusting the controls using the following simple instructions:

1.Be sure there is enough electrode in the machine to complete the weld.

2.If submerged arc welding, fill flux hopper with new or freshly screened flux. All reused flux must be screened 100% through an 8 mesh screen [0.065 to 0.075 in. (1.6 to 1.9 mm) opening]. Turn the switch on the hopper to “On.”

3.Start the power source.

4.Turn the “Power Control” switch on the wire feeder control to “On.”

5.Position the welding head at the start of the weld. Be sure the travel carriage or other travel mechanism is set to move in the proper direction.

6.Set the travel switch to “Automatic Travel.” When set to “Hand Travel”, the travel system operates without welding.

7.For best starts, cut the electrode to a sharp point.

8.Press the “Inch Down” button to feed the electrode out of the nozzle.

a.For most applications, when hot starting, leave the electrode 1/4 in. (6.4 mm) or more away from the work.

b.When cold starting some submerged arc welding, inch the electrode down until it touches the work and the flux valve opens.

9.Press the “Start” button.

10.While welding, turn the cross seam adjuster handwheel as needed to keep the arc in the joint.

11.At the end of the weld, press the “Stop” button.

12.If needed, press the “Inch Up” button to get the electrode up and out of the way. Remove the work and reload the fixture.

NOTE: When the contact tip in the end of the nozzle wears during repetitive welding, it must be replaced. Check the contact tip for wear if weld quality seems to be deteriorating.

NA-5

NA-5S, NA-5N, NA-5SF, NA-5NF specifications

The Lincoln Electric NA-5NF, NA-5SF, NA-5N, and NA-5S are advanced welding helmets that are pivotal in enhancing the safety and efficiency of welders in various applications. These models are designed to provide exceptional protection and visibility, making them indispensable tools in the welding industry.

One of the main features of the NA-5 series is the auto-darkening filter technology. This feature allows the helmet to automatically adjust its shade based on the intensity of the arc. As the welder strikes an arc, the lens darkens instantaneously, shielding the eyes from harmful rays generated during the welding process. This functionality not only ensures safety but also enhances productivity, as welders do not need to manually flip the helmet up and down.

The helmets are equipped with a wide viewing area that allows for better visibility and precision while working. With a large lens, welders can easily monitor their work and surrounding environment, minimizing the risk of accidents. Additionally, the lightweight design of the NA-5NF, NA-5SF, NA-5N, and NA-5S provides comfort during extended periods of use, reducing neck strain and fatigue.

The NA-5 series is also well-regarded for its durability. Constructed from impact-resistant materials, these helmets can withstand the rigors of demanding work environments. This durability extends the lifespan of the helmet, making it a cost-effective investment for both professional and hobbyist welders.

Another notable characteristic is the adjustable sensitivity and delay settings found in certain models. These settings allow the user to customize the helmet based on their specific welding conditions. For instance, a welder can increase sensitivity for low-amperage tasks or adjust the delay to allow for a smoother transition from dark to light after completing a weld.

Furthermore, the helmets come with a reliable battery life, ensuring that they can be used for long periods without interruption. Some models also feature solar assist functionality, which helps recharge the auto-darkening filter, enhancing their overall efficiency.

In summary, the Lincoln Electric NA-5NF, NA-5SF, NA-5N, and NA-5S welding helmets represent a significant advancement in personal protective equipment for welders. Their combination of auto-darkening technology, wide viewing area, lightweight design, durability, and customizable settings makes them an excellent choice for anyone engaged in welding tasks. With these helmets, users can achieve greater safety and efficiency in their work, enabling them to focus on their craft with peace of mind.

Lincoln Electric NA-5NF Operating Instructions, Safety Precautions, OPERATOR’S Instructions

Models: NA-5S NA-5N NA-5SF NA-5NF