Echo X52000020 instruction manual PINCHING, Binding & Splitting, Hinge

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PINCHING, BINDING & SPLITTING

Wind bends trees. Gravity bends logs that are not flat on the ground. A log

HINGE

 

weakened by a cut over 1/3 the log diameter is like two logs hinged together. The

 

cut may either close or open wider, depending on how the log is positioned.

 

 

MOVING OPENED

In bucking logs, always make the weakening cut from the direction (opposite

the “hinge” side) which causes the cut to widen. If made from the wrong side, PINCHING CLOSED HINGE the cut will close, binding the saw and pinching the chain.

If the log is under heavy stress, prevent splitting by making a shallow cut (up to 1/ 3 dia.) on the “hinge” side first. But, always finish with the final cut in a direction towards the “hinge” side.

CUT UP OR

UNDERBUCK

HINGE

1ST 1/3 CUT

2ND FINISHING CUT

When the log is supported on both ends and is best to be cut in between, underbuck (cut upward from the bottom side) for the finishing cut.

When you wish to cut off an unsupported section from the end of a log, the weakening or finishing cut should be an overbuck (from top down). However, you may begin with a shallow underbuck to avoid splitting.

When the lie is such that the cutoff section will settle, guard against binding and pinching of the saw between the log sections. This can be done by inserting a soft wedge into the cut (after the chain is out of the way) to hold the cut open. In certain cases, the cut may be made on an angle so that it will widen as the log settles.

CUT DOWN OR

UNDERBUCK

UNSUPPORTED END

WEDGE

If you’re unsure how a log actually lies, and how it will bend, change its lie. If too heavy to move without strain on the back muscles, use a lever bar such as a cant hook to move or roll it. NOTE: You may have need to use this procedure to free the saw, if you misjudged the position of the log.

When a log is flat on the ground, overbuck as far through as possible without cutting into the earth. Then roll the log over to finish the cut.

LOGGER’S HOOK FOR

ROLLING LOGS

MAKE ANGLED CUT WHEN ONE SECTION MAY

SETTLE AGAINST ANOTHER. KEEP BODY OUT OF

BAR/CHAIN PATH!

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Contents Chain SAW Safety Manual CIRCLE/SLASH Symbol KEY Safety Symbols and WarningsImportant Safety Warnings Important Safety Warnings Page Introduction Table of ContentsForces YOU Must Control Do not Over -REACH to Make a CUT Beware of Skating Kick Guard Kick Guard InstallationConditions Which MAY Require Removal of Kick Guard Kick Guard Applications Operating SAW with the Kick Guard DeviceCommon Causes of Kickback Operating SAW Without the Kick Guard DeviceGood Control Chain Brake Lever Reduced Kickback Chain Guide BAR Rail DAMAGE- Time to Replace Operator Safety Vital Safety Gear to Wear When Cutting KEY Safety and Risk Prevention Rules Beware of High Tension BRANCHES. Stay OUT of the Path General Safety Instructions KEY Safety and Risk Prevention Rules Rules for Safe Fueling No Lighting Up Or Smoking When Handling GasolineSafe Wood Cutting Practices Hinge PINCHING, Binding & SplittingPruning Shade Trees and Cutting Saplings Felling Trees Path not this WAY Limbing and Bucking Be Alert for Felling Very Large Trees BOW SAW Warning Electric Chain SAW SafetyMinimum Wire Gauge Recommendations Volts Glossary of Chain SAW Terms Gasoline Powered Unit TermsGlossary of Chain SAW Terms ECHO, Incorporated