BM 2610957380 02-09:BM FNS250-16 06-09 6/17/09 8:05 AM Page 4

Follow all recommendations for sizes of hoses, fittings and other compressed air accessories. Improperly sized or fitting components may result in the risk of injury or property damage.

Check air supply lines for restrictions before adjusting the tool. Air volume is as important as air pressure. Restricted air flow will prevent the tool from operating as designed, resulting in slow operation, nail misfeeding or reduced driving power.

Always load nails into the tool's magazine before the air supply is connected. Connecting the air supply after loading nails reduces the risk of unintentionally driving a nail and injuring yourself or someone else.

When loading nails ensure that nails are parallel with nose of tool. If nails are not parallel with nose the tool will misfire and nails can be deflected, cause the tool to react in an unexpected manner, and damage the tool.

When loading the tool's magazine, check that the nail follower slides smoothly by pulling with finger. If not smooth, nails can be driven at irregular angle.

Use only the nails meeting the criteria listed in the “Specification” section of this manual. Nails not identified for use with this tool can cause the tool to malfunction and result in the risk of injury and/or tool damage.

Do not connect the air supply when the trigger or work contact element is depressed. Keep the tool pointed downward, away from yourself and bystanders when connecting the hose to reduce the risk of accidental nail firing.

Keep hands and feet away from work contact element of the tool during use. Never place your hands or feet closer than 8 inches (200 mm) to the work contact element of the tool. Nails can be deflected by the work piece or driven away from the point of entry.

Choice of triggering methods is important; understand the operating characteristics of each option. There are two possible firing modes; “sequential firing” and “bump firing.” Read and understand section titled “Actuation Systems” for details of each mode.

Do not use a frozen tool. Allow tool to thaw before using. Moisture frozen in the tool may impede internal components resulting in the risk of injury and/or tool damage.

Operate the tool only when properly positioned on the work piece. If the tool is not held properly on the work piece the nail can be deflected or the tool can react in an unexpected manner.

Use sufficient grip to maintain control of the tool while allowing tool to recoil away from work surface as nail is driven. Do not attempt to prevent the recoil by holding the tool with excessive force against the work piece. The tool will recoil as the nail is driven. This is normal function for the tool. Restriction to the recoil can result in second nail being driven when the tool is in “bump firing” mode.

Use caution when operating the tool in confined areas. If the work contact element is allowed to re-contact the work surface before trigger is released, an unwanted nail will be fired if the tool is set in “bump firing” mode.

In order to avoid undesirable double fire, take the following actions when the tool is in the following firing modes:

Sequential firing:

1.Ensure trigger is in sequential fire mode.

2.Pull the trigger firmly and release. Bump firing:

1.Do not press the tool against the wood with excessive force.

2.Allow the tool to separate from the wood as it recoils after nailing.

Never drive nails near flammable materials. Some types of nails can spark out of the nose during driving operation.

Know what is behind your work piece. Do not fire nails into walls or floors without assuring the area on the opposite side is clear. A nail could travel through the work piece, striking someone.

Do not drive a nail on top of another nail. This could cause the nail to be deflected or the tool to react in an unexpected manner.

Do not attempt to drive nails at a steep angle. This could cause the nail to be deflected or the tool to react in an unexpected manner.

Use care when nailing thin material or when working near the edges and corners of the work piece. Nails may drive through or away from the work piece and injure yourself or someone else. Be aware that the nail may follow the grain of the wood causing it to protrude unexpectedly from the side of the work material. Drive the nails perpendicular to the grain.

Do not drive nails into walls, floors or other work areas without knowing what may be damaged by the driven nails. Nails driven into live electrical wires, plumbing, gas piping, or other types of obstructions can result in electrocution, explosion, personal injury and/or property damage.

Make sure the pressure of the compressor is adjusted so that nails are driven flush into the work piece and not pushed completely through. The correct pressure is the lowest pressure that will do the job.

Keep face and body parts away from back of the top cap when working in restricted areas. Sudden recoil can result in impact to the body especially when nailing into hard or dense material.

Handle tool carefully. Because of high air pressure in the tool, do not drop the tool or strike the tool against hard surfaces; and do not scratch, stamp, nor engrave signs on the tool. The tool may burst.

Always disconnect tool from air supply and remove nails from magazine before leaving the area or passing tool to another operator. This avoids the risk of unintentional operation.

Do not disconnect air hose from the tool with finger on trigger or the work contact element depressed. The tool can fire when reconnected to air supply.

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Bosch Power Tools manual BM 2610957380 02-09BM FNS250-16 06-09 6/17/09 805 AM

FNS250-16 specifications

The Bosch Power Tools FNS250-16 is a powerful and versatile finish nailer designed for both professional contractors and DIY enthusiasts alike. Engineered for utmost precision and reliability, the FNS250-16 excels in a variety of applications, from cabinet making to trim installation, showcasing Bosch's commitment to performance and innovation in the power tools market.

One of the standout features of the FNS250-16 is its lightweight and compact design. Weighing only 4.3 pounds, it ensures ease of handling and maneuverability, reducing user fatigue during prolonged use. This makes it an ideal choice for those working in tighter spaces or on detailed projects where precision is key.

The FNS250-16 boasts a robust motor that drives 16-gauge finish nails ranging from 1 inch to 2.5 inches in length. This versatility allows users to tackle various materials and applications with ease. Furthermore, the tool features a tool-free depth adjustment system, enabling users to set the depth of drive quickly and effortlessly, ensuring that nails are driven flush or slightly below the surface as required.

Another significant technology integrated into the FNS250-16 is its Low Nail Lock-Out feature. This intelligent design prevents dry firing, protecting both the work surface and the tool itself. Users are notified when the nail supply is low, allowing for seamless work without disruptions.

The FNS250-16 also includes a convenient on-tool air duster, which helps clean the work area before and after use, enhancing overall efficiency and ensuring a tidy workspace. The integrated LED light illuminates dark work areas, making it easier to see the surface and drive nails accurately.

Moreover, the finish nailer features an adjustable exhaust portal that directs air away from the user, keeping the work area clear without interfering with visibility. The ergonomic handle design provides a comfortable grip, further enhancing control and reducing strain during extended tasks.

In conclusion, the Bosch Power Tools FNS250-16 is a state-of-the-art finish nailer that combines power, efficiency, and user-friendly features. Whether you're a professional contractor or a dedicated DIYer, this tool is designed to meet your needs while delivering top-notch performance and reliability on the job.