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DeWalt DW820 manual Causes and Operator Prevention of Kickback

Models: DW820

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EN G L IS H

d)The rated speed of the accessory must be at least equal to the maximum speed marked on the power tool. Accessories running faster than their rated speed can break and fly apart.

e)The outside diameter and the thickness of your accessory must be within the capacity rating of your power tool. Incorrectly sized accessories can not be adequately guarded or controlled.

f)The arbour size of wheels, flanges, backing pads or any other accessory must properly fit the spindle of the power tool. Accessories with arbour holes that do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control.

g)Do not use a damaged accessory. Before each use inspect the accessory such as abrasive wheel for chips and cracks, backing pad for cracks, tear or excess wear, wire brush for loose or cracked wires. If power tool or accessory is dropped, inspect for damage or install an undamaged accessory. After inspecting and installing an accessory, position yourself and bystanders away from the plane of the rotating accessory and run the power tool at maximum no-load speed for one minute. Damaged accessories will normally break apart during this test time.

h)Wear personal protective equipment. Depending on application, use face shield, safety goggles or safety glasses. As appropriate, wear dust mask, hearing protectors, gloves and workshop apron capable of stopping small abrasive or workpiece fragments. The eye protection must be capable of stopping flying debris generated by various operations. The dust mask or respirator must be capable of filtrating particles generated by your operation. Prolonged exposure to high intensity noise may cause hearing loss.

i)Keep bystanders a safe distance away from work area. Anyone entering the work area must wear personal protective equipment. Fragments of workpiece or of a broken accessory may fly away and cause injury beyond immediate area of operation.

j)Hold power tool by insulated gripping surfaces only, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a “live” wire may make exposed metal parts of the power tool “live” and could give the operator an electrical shock.

k)Position the cord clear of the spinning accessory. If you lose control, the cord may be cut or snagged and your hand or arm may be pulled into the spinning accessory.

l)Never lay the power tool down until the accessory has come to a complete stop. The spinning accessory may grab the surface and pull the power tool out of your control.

m)Do not run the power tool while carrying it at your side. Accidental contact with the spinning accessory could snag your clothing, pulling the accessory into your body.

n)Regularly clean the power tool’s air vents. The motor’s fan will draw the dust inside the housing and excessive accumulation of powdered metal may cause electrical hazards.

o)Do not operate the power tool near flammable materials. Sparks could ignite these materials.

p)Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in electrocution or shock.

FURTHER SAFETY INSTRUCTIONS FOR ALL OPERATIONS

Causes and Operator Prevention of Kickback

Kickback is a sudden reaction to a pinched or snagged rotating wheel, backing pad, brush or any other accessory. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the uncontrolled power tool to be forced in the direction opposite of the accessory’s rotation at the point of the binding.

For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that is entering into the pinch point can dig into the surface of the material causing the wheel to climb out or kick out. The wheel may either jump toward or away from the operator, depending on direction of the wheel’s movement at the point of pinching. Abrasive wheels may also break under these conditions.

Kickback is the result of tool misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below:

a)Maintain a firm grip on the power tool and position your body and arm to allow you to resist kickback forces. Always use auxiliary handle, if provided, for maximum control over kickback or torque reaction during start

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DeWalt DW820 manual Causes and Operator Prevention of Kickback
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DW820 specifications

The DeWalt DW820 is a high-performance electric screwdriver designed for both professional tradespeople and DIY enthusiasts. Known for its robust construction and user-friendly features, this tool has become a staple in workshops and job sites around the world.

One of the standout characteristics of the DW820 is its powerful motor, capable of delivering consistent torque and speed. The high-performance motor enables the tool to handle a wide range of fastening tasks, from driving screws into wood to tackling tougher materials like metal and masonry. With a speed range up to 2,500 RPM, the DW820 ensures efficiency and precision in every application.

The DW820 also features an adjustable torque control mechanism, allowing users to set the torque according to the requirements of their specific task. This makes it particularly useful for delicate applications where over-tightening could lead to material damage. The ability to adjust torque not only enhances performance but also increases the longevity of both the tool and the fasteners being used.

Another highlight of the DeWalt DW820 is its ergonomic design. The tool is constructed with a rubber grip handle, providing comfort during prolonged use and reducing fatigue. The compact and lightweight design further enhances maneuverability, making it easier to operate in tight spaces or overhead situations.

Additionally, the DW820 incorporates a keyless chuck, allowing for quick and easy bit changes. This feature saves time and increases efficiency, especially in fast-paced work environments. The integrated LED light is another valuable addition, illuminating the work area for improved visibility, particularly in low-light conditions.

The construction quality of the DW820 is impressive, featuring durable materials that withstand the rigors of daily use. The tool's housing is designed to resist wear and tear, ensuring it remains reliable even in the harshest conditions.

In summary, the DeWalt DW820 electric screwdriver combines power, precision, and user-friendly features. With its high-performance motor, adjustable torque control, ergonomic design, and practical features such as a keyless chuck and LED light, it meets the demands of both professional and hobbyist users alike. Whether you’re assembling furniture, installing fixtures, or working on construction projects, the DW820 stands out as a versatile and dependable tool in any toolkit.