OPERATION

ADJUSTING THE DEPTH GAUGE ROD

See Figure 5.

nUnplug the hammer drill.

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

nAdjust the depth gauge rod so that the drill bit extends beyond the end of the rod to the required drilling depth.

nTighten handle assembly by turning handle clockwise.

ADJUSTING THE DRILL MODE

See Figure 6.

Use carbide-tipped bits and select hammer mode when drilling in hard materials such as brick, tile, concrete, etc.

Select drill mode when drilling in soft materials.

nFor hammer mode: slide the mode selector to the left.

nFor drill mode: slide the mode selector to the right.

ADJUSTING THE SPEED

See Figure 7.

CAUTION:

Never change gears while the tool is running. Failure to obey this caution could result in serious damage to the drill.

The hammer drill has a two-speed knob that provides a high speed of approximately 3,000 RPM and a low speed of ap- proximately 1,000 RPM (stated speeds are with the trigger switch in the “Full-on” position).

nFor high speed: Rotate the two-speed knob clockwise, aligning the indicator mark with the “2.”

nFor low speed: Rotate the two-speed knob counterclock- wise, aligning the indicator mark with the “1.”

If you have difficulty changing from one gear range to the other, turn the chuck by hand until the gears engage.

ADJUST DEPTH

GAUGE ROD

TO

TIGHTEN

AUXILIARY TO

HANDLE LOOSEN

Fig. 5

SLIDE RIGHT FOR

DRILLING MODE MODE

SELECTOR

SLIDE LEFT FOR

 

HAMMER MODE

Fig. 6

COUNTERCLOCKWISE

TO LOW SPEED

CLOCKWISE TO

HIGH SPEED

Fig. 7

12

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Image 12
Ryobi D551H manual Adjusting the Depth Gauge ROD, Adjusting the Drill Mode, Adjusting the Speed

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.