Chain Saw Kickback Safety Devices, Chain Brake

Chain Saw Kickback Safety Devices

Chain Brake

Your chain saw is equipped with a chain brake that is designed to stop the chain in the event of a kickback. The chain brake reduces the risk of acci-dents, but only you can prevent them.

■■The chain brake can be activated manu- ally by your left hand pushing against the hand guard or automatically by the inertia release mechanism, in the event of kickback, stopping the saw chain.

■■Activating the chain brake tightens a brake band around the chain drive mechanism, stopping the chain rotation.

WARNING!

Kickback can happen lightning-fast!

CHN-16

Brake engagement and oper-ation depend upon proper chain brake condition! See “Chain Brake Testing” for procedures..

NOTE:

The function of the front hand guard is to reduce the risk of the chain hitting your left hand if you loose the grip of the front handle.

Cutting Equipment

■■Guide bar. The smaller the guide bar tip radius the lower the chance of kickback.

■■Low kick chain. Low kickback chain is designed to reduce the force of a kickback.

WARNING!

Faulty cutting equipment or the wrong combination of bar and saw chain increases the risk of kickback! Only use the bar and chain combinations recommended in the “Specifications” section.

Kickback Safety Precautions

Either of the following reactions could cause you to lose control of your saw while cutting, possibly resulting in serious injury!

1.Kickback can occur whenever the guide bar nose or tip contact an object while the saw is running. Tip contact may cause the guide bar to kick upward and back toward the operator with a light- ning-fast reaction!

2.Pinching the saw along the top of the guide bar may push the guide bar rap- idly back toward the operator! Pinch- ing can occur whenever wood closes in around the moving chain!

Do not rely exclusively on the safety devices incorporated with your saw. As a chain saw user, observing the following steps will also help you to avoid accident or injury on the job:

■■Sudden surprise can contribute to accidents! With a basic understanding of kickback, you can reduce or elimi- nate the element of surprise.

■■Clear obstructions from the work area before cutting. Remove any log, branch, or other obstruction that might contact the guide bar tip during cutting opera- tions.Grip the saw firmly with your right hand on the rear handle and your left hand on the front handle, thumbs and fingers encircling the handles whenever the saw is running. Don’t let go: A firm grip will help you to reduce kickback while maintaining control of the saw.

■■Accelerate the saw before the chain contacts the work area, and always maintain high engine speeds through- out the cut.

■■Do not overreach or attempt to cut above shoulder height.

■■Follow the manufacturer’s instructions for sharpening and maintenance of the saw chain.

■■Use only the replacement bar and chain combinations specified by the manufacturer.

■■Never stand directly over the saw while cutting!

■■Use low-kickback chain, chain brakes, or special guide bars to reduce the risk of kickback. Low kickback chain is chain that has met the kickback performance requirements of ANSI B175.1-2000 (American National Standard for Power Tools-Gasoline Powered Chain Saws- Safety Requirements) when tested

on the representative sample of chain saws below 3.8 c.i.d. specified in ANSI B175.1-2000.

69033-94310, 502s specifications

The Shindaiwa 502S is a powerful and versatile handheld blower known for its performance and efficiency in the landscaping and lawn care industries. Engineered for both professionals and homeowners, this model delivers a range of features that make it an exceptional tool for clearing debris, leaves, and grass clippings with ease.

At the heart of the Shindaiwa 502S is its robust engine, a 50.2cc two-stroke engine that provides reliable power while ensuring optimal performance. This engine is designed with advanced technology, offering high air volume and velocity, which allows users to tackle even the toughest blowing tasks effectively. The engine is also equipped with a fuel-efficient design that minimizes emissions, aligning with today’s environmental standards.

One of the key features of the 502S is its lightweight construction. Weighing in at just over 10 pounds, this blower is designed for user comfort, allowing extended periods of operation without excessive fatigue. Its ergonomic design includes a padded harness and adjustable handle, which provides a more balanced and comfortable grip. This design is particularly beneficial for professional landscapers who require a tool that promotes productivity without sacrificing comfort.

The Shindaiwa 502S also features a highly responsive throttle trigger, which allows for precise control over the airflow. This enhances user control when navigating around delicate plants or in enclosed spaces. Additionally, the blower is designed with a heavy-duty air filter, promoting cleaner airflow to the engine and ultimately extending the life of the tool.

Another significant characteristic of the 502S is its easy starting system. Shindaiwa has incorporated a reliable starting mechanism that reduces the number of pulls needed to start the engine, saving time and effort during work sessions. Coupled with a low vibration design, this blower not only eases operation but also promotes safer, more comfortable usage.

In conclusion, the Shindaiwa 502S is a standout model in the landscape maintenance arena. With its powerful yet efficient engine, user-friendly design, and advanced features, this blower is well-suited for both residential and commercial applications. Whether it's tackling leaves in the fall or clearing debris after a storm, the Shindaiwa 502S consistently delivers high performance and durability, top choices for those serious about lawn care and landscaping endeavors.