Manuals / Lincoln Electric / Power Tools / Welding System

Lincoln Electric NA-5NF, NA-5SF service manual Problems Possible Areas Recommended Symptoms

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

1 152
Download 152 pages 30.16 Kb
Page 61
Image 61

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

 

F-8

TROUBLESHOOTING & REPAIR

F-8

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

 

 

 

PROBLEMS

 

 

POSSIBLE AREAS OF

 

RECOMMENDED

 

(SYMPTOMS)

 

 

MISADJUSTMENTS(S)

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

WIRE FEEDING PROBLEMS

 

 

 

 

 

 

 

 

 

 

The wire will not inch down but does

1.

Check to make sure that light 7J,

1.

The logic board may be faulty.

 

inch up properly. The wire does not

 

on the logic board, is lit when the

 

Replace.

 

feed in either direction when the start

 

inch down button is pressed. If

 

 

 

 

button is pressed.

 

 

not check the inch down switch

2.

The power board may be faulty.

 

 

 

 

and associated leads. See wiring

 

Replace.

 

 

 

 

diagram.

 

 

 

 

 

 

2. Check to make sure that light 7B,

 

 

 

 

 

 

 

on the logic board, is lit when the

 

 

 

 

 

 

 

start button is pressed. If not

 

 

 

 

 

 

 

check the start button and associ-

 

 

 

 

 

 

 

ated leads. See wiring diagram.

 

 

 

 

 

 

 

 

The wire will not inch down but does

1. For codes below 8300 make sure

1. Jumper the AUTO tabs on the

 

inch up properly. When the start

 

the jumper plug is securely

 

voltage board. (Above code

 

button is pressed the wire feeds up

 

installed in the harness receptacle

 

8300)

Press the inch down but-

 

instead of down.

 

 

near the voltage board.

 

ton. If the wire inches down the

 

 

 

 

 

 

voltage board may be faulty.

 

 

 

2.

Check to make sure light 7E, on

 

Replace.

 

 

 

 

the logic board, is on when the

 

 

 

 

 

 

 

inch down button is pressed. If

 

If the wire does NOT inch down

 

 

 

 

light 7E is ON the power board

 

the logic board may be faulty.

 

 

 

 

may be faulty.

 

Replace.

 

 

 

3. Check the 1/8 amp fuse on the

 

 

 

 

 

 

 

voltage board . Replace if faulty.

 

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 216-383-2531 or 1-800-833-9353.

NA-5

Page 60 Page 62
Page 61
Image 61
Lincoln Electric NA-5NF, NA-5SF service manual Problems Possible Areas Recommended Symptoms
Page 60 Page 62

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.