Barnacle Parp's CHAIN SAW GUIDE

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Another problem caused by the chain is the pull or push that occurs as it catches in the work at the middle of the bar. Push occurs when the top of the bar hits the log. The chain catches in the wood and the saw is forced violently back toward the operator. Similarly, pull occurs when the work is forward of the bumper spike. The chain catches and violently pulls the saw forward until the spike hits the log. These two hazards are most likely to occur if the saw is not running at full speed as the chain hits the work, or if the operator isn't holding the saw firmly.

Certain safety precautions can help prevent chain-caused injuries. Competence and alertness are the operator's best protection. Next is proper clothing. Ordinary snug work clothes are best. You should certainly avoid wearing bulky or loose coats, sweaters, or gloves when you're working with a chain saw. Trousers should be snug and cuffless. I prefer ordinary jeans.

The cutting chain can also cause injuries when it breaks. A chain-catching pin built into the saw can protect the operator by stopping the chain before it flies into the body. Hand guards for the front handle and for the rear handle also help. Even when a chain catcher stops the broken chain, the end can still reach the operator's right hand. Many recent chain-saw designs incorporate a large guard to protect the right hand. Snug leather gloves can also help. Goggles or face mask and hard hat protect the operator's eyes, face, and head from flying chain.

Noise and vibration can be much more serious than they might seem. The best modern chain saws all incorporate designs that are intended to minimize vibration and noise. But you should take further precautions. Any prolonged session of chain-saw work increases the chance that vibration and noise will endanger your health. You should, if possible, avoid working with a chain saw for more than six hours in one day. On those rare occasions when you must operate your saw for extended periods, or if you're about to become a logger, at least be sure to wear ear protection and take frequent breaks. I've had an awful ringing in my ears, on occasion, that I couldn't get rid of for three days. It really is extremely unpleasant and it can do a lot of damage before you know it. Good, inexpensive, professional ear plugs are available from Bailey's, P.O. Box 550, Laytonvllle, California 95454.

As for the vibration, when it starts to bother you (after four or five hours or so), stop working. Never operate a chain saw when you're fatigued . . . that vibration can cause your muscles to turn to jelly without warning. It's a temporary condition, but it can be very dangerous if you and your saw are in a bad position, or if kickback catches you by surprise.

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