Ryobi D551H manual Inserting Bits, Removing Bits, Adjusting the Auxiliary Handle Assembly

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OPERATION

WARNING:

Always unplug the drill before inserting or removing bits or adjusting the auxiliary handle assembly or depth gauge rod. Failure to unplug the tool could result in accidental starting causing possible serious injury.

INSERTING BITS

See Figure 2.

nUnplug the hammer drill.

nPosition the chuck jaws so that the opening is slightly larger than the drill bit you intend to use.

NOTE: To open the chuck jaws, turn the chuck collar counterclockwise. To close the chuck jaws, turn the chuck collar clockwise.

�n Raise the front of the drill to keep the drill bit from falling out of the chuck jaws.

WARNING:

Do not insert a drill bit into the chuck jaws and tighten as shown in Figure 3. This could cause the drill bit to be thrown from the drill, resulting in possible serious injury or damage to the chuck.

nInsert the drill bit completely into the chuck.

nTighten the chuck jaws securely on the drill bit using the chuck key provided. Do not use a wrench to tighten or loosen the chuck jaws.

REMOVING BITS

nUnplug the hammer drill.

nLoosen the chuck jaws using the chuck key provided.

nRemove the drill bit from the chuck jaws.

ADJUSTING THE AUXILIARY HANDLE ASSEMBLY

See Figure 4.

nUnplug the hammer drill.

nLoosen the handle assembly by turning the handle coun- terclockwise.

nRemove the handle from the drill.

nRotate the handle assembly and place it on the opposite side.

nTighten the handle assembly securely by turning the handle clockwise.

CHUCK JAWS

DRILL BIT

CHUCK COLLAR

RIGHT

Fig. 2

WRONG

Fig. 3

AUXILIARY

HANDLE ASSEMBLY

HANDLE

Fig. 4

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Contents Save this Manual for Future Reference OPERATOR’S ManualIntroduction Table of ContentsWork Area General Safety RulesElectrical Safety Personal SafetyService Specific Safety RulesSymbol Name DESIGNATION/EXPLANATION SymbolsSymbol Signal Meaning Extension Cords ElectricalDouble Insulation Electrical ConnectionProduct Specifications FeaturesFeatures Packing List AssemblyOperation UnpackingRemoving Bits Adjusting the Auxiliary Handle AssemblyInserting Bits Adjusting the Speed Adjusting the Depth Gauge RODAdjusting the Drill Mode Locking on Turning the Hammer Drill ON/OFFChanging the Rotation Helpful Tips MaintenanceGeneral Maintenance DrillingTightening a Loose Chuck LubricationRemoving the Chuck Service Model NO. and Serial no

D551H specifications

The Ryobi D551H is a highly regarded pneumatic nailer designed for both professionals and DIY enthusiasts. This tool stands out due to its powerful capabilities and thoughtful features, making it an essential addition to any woodworking toolkit.

One of the key features of the Ryobi D551H is its ability to drive a range of fasteners with exceptional precision. This nailer accommodates 16-gauge finishing nails, delivering the power necessary for securing trim, molding, and other intricate woodworking applications. The tool’s depth adjustment feature allows users to customize the depth of each nail, ensuring a clean and professional finish every time.

The Ryobi D551H also boasts a powerful motor that drives nails quickly and consistently. This pneumatic design is effective for high-volume jobs, reducing fatigue and time spent on the job site. Its lightweight construction enhances portability, making it easy to maneuver in tight spaces and ideal for long periods of use.

Another notable technology in the D551H is its built-in oil-free design. This eliminates the need for regular maintenance associated with oil-based nailers, allowing users to focus more on their projects rather than upkeep. Additionally, the tool features an adjustable exhaust that directs air away from the user, keeping the workspace clean and comfortable.

Safety is a priority in the design of the Ryobi D551H. The tool includes a trigger lock that prevents accidental firing, ensuring that users can work confidently and securely. Combined with a no-mar tip that protects surfaces from damage, this nailer prioritizes the safety and quality of the user experience.

Moreover, the magazine capacity of the D551H allows for numerous fasteners to be loaded at once, reducing the frequency of reloading during extended use. This feature significantly increases efficiency, particularly in demanding work environments.

The Ryobi D551H is also compatible with a variety of accessories and attachments, enhancing its versatility. Whether users are tackling a home improvement project or engaging in professional construction tasks, the D551H is engineered to meet diverse demands with ease and reliability.

In summary, the Ryobi D551H delivers a powerful, user-friendly experience with its impressive features, advanced technologies, and commitment to safety. Ideal for both seasoned professionals and those new to woodworking, this pneumatic nailer is a robust tool designed to simplify tasks and enhance productivity on any project.
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