ADDITIONAL SPECIFIC SAFETY RULES continued

g)Always use blades with correct size and shape (diamond versus round) of arbor holes. Blades that do not match the mounting hardware of the saw will run eccentrically, causing loss of control.

h)Never use damaged or incorrect blade washers or bolt. The blade washers and bolt were specially designed for your saw, for optimum performance and safety of operation.

Kickback Safety Instructions

Causes and Operator Prevention of Kickback:

–Kickback is a sudden reaction to a pinched, bound or misaligned saw blade, causing an uncontrolled saw to lift up and out of the workpiece toward the operator.

–When the blade is pinched or bound tightly by the kerf closing down, the blade stalls and the motor reaction drives the unit rapidly back toward the operator.

–If the blade becomes twisted or misaligned in the cut, the teeth at the back edge of the blade can dig into the top surface of the wood causing the blade to climb out of the kerf and jump back toward the operator.

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

i)Maintain a firm grip with both hands on the saw and position your arms to resist kickback forces. Position your body to either side of the blade, but not in line with the blade. Kickback could cause the saw to jump backwards, but kickback forces can be controlled by the operator, if proper precautions are taken.

j)When blade is binding, or when interrupting a cut for any reason, release the trigger and hold the saw motionless in the material until the blade comes to a complete stop. Never attempt to remove the saw from the work or pull the saw backward while the blade is in motion or kickback may occur. Investigate and take corrective actions to eliminate the cause of blade binding.

k)When restarting a saw in the workpiece, centre the saw blade in the kerf and check that saw teeth are not engaged into the material. If saw blade is binding, it may walk up or kickback from the workpiece as the saw is restarted.

l)Support large panels to minimize the risk of blade pinching and kickback. Large panels tend to sag under their own weight. Supports must be placed under the panel on both sides, near the line of cut and near the edge of the panel.

m)Do not use dull or damaged blades. Unsharpened or improperly set blades produce narrow kerf causing excessive friction, blade binding and kickback.

n)Blade depth and bevel adjusting locking levers must be tight and secure before making cut. If blade adjustment shifts while cutting, it may cause binding and kickback.

o)Use extra caution when making a "plunge cut" into existing walls or other blind areas. The protruding blade may cut objects that can cause kickback.

SAVE THESE INSTRUCTIONS!

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Porter-Cable 844 instruction manual Additional Specific Safety Rules
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844 specifications

The Porter-Cable 844 is a highly regarded portable benchtop planer, designed to combine power, precision, and convenience for both professional woodworkers and DIY enthusiasts. This planer features a robust 15-amp motor that delivers a substantial 20,000 RPM, ensuring efficient stock removal and smooth finishes on a variety of wood materials.

One of the standout features of the Porter-Cable 844 is its dual blade system, which utilizes two high-quality, reversible blades. This not only increases the tool's durability but also offers an extended lifespan before the need for replacement. The blades can effectively remove up to 1/8 inch of material in a single pass, making it suitable for a wide range of planing tasks, from flattening rough lumber to finishing edges for joint preparation.

The design of the 844 emphasizes user comfort and ease of operation. With a lightweight frame, it is portable enough for easy transport between job sites. Its ergonomic handles provide a comfortable grip, reducing fatigue during extended use. The integrated dust port is another practical feature, allowing for efficient dust collection when attached to a vacuum system. This functionality keeps the workspace tidy and enhances visibility while working.

Porter-Cable’s innovative feed system is designed for consistent and dependable operation. Featuring a variable speed option, the feed rate can be adjusted according to the specifics of the project, which allows users to tailor the planing process to different wood types and thicknesses. The adjustable table height is another beneficial characteristic, allowing for precise depth settings to accommodate various machining requirements.

Safety features are paramount in the design of the Porter-Cable 844. It includes a safety lock-off switch that prevents accidental starts, ensuring a secure operating environment. The combination of power, precision, and user-friendly features makes the Porter-Cable 844 a versatile and essential tool for anyone serious about woodworking.

In summary, the Porter-Cable 844 stands out in its class due to its powerful motor, dual blade capabilities, adjustability, and safety features. Whether you are looking to smooth out rough cuts, prepare wood for joining, or achieve a fine finish on your projects, the Porter-Cable 844 provides the performance and reliability you need to get the job done efficiently. It is a top choice for professional craftsmen and hobbyists alike, ensuring excellent results on each planing task.
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