Saw Program Myths

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Incorrect-determining the lean and assessing the sawyers ability to fell the tree to the desired location is part of the OHLEC process.
Incorrect-29CFR1910.266 ‘OSHA Logging Standard’ prohibits more than just the sawyer. Exception- During training. Complete a JHA or RA for more than one sawyer at the base of tree.
Incorrect-the conventional, the Humboldt and the open face are all approved undercuts for FS sawyers.
Incorrect-Bow bars are no longer approved for use on Stihl or Husqvarna chain saws (see owner’s manuals). One of the primary reasons is that the bow bar changes the saw’s center of gravity, preventing the chain brake from engaging properly during kickback.
Incorrect-wedges are used to “lift” a tree in order to overcome the center weighted mass of the tree.
Incorrect-It is an evaluation of skills and an opportunity to teach.Think about how to deliver the results of an evaluation to help the sawyer be successful and learn.
Incorrect-more important than perfectly matching or level cuts are correct hinge length, hinge thickness and orientation to target. Was the hinge correctly constructed and did it hit the target?
Depends-is there a hazard? Has your cutting plan determined an overhead hazard exits? Think through the plan you have developed and take intentional actions for tangible reasons.
Incorrect-Escape the stump to at least 15′ or adequate cover. Your cutting plan will identify the hazards that will allow you to concentrate on your escape path. If it doesn’t, reevaluate and develop another plan that will.
Depends-If you are cutting under/around hazards it does so reevaluate and develop another cutting plan. If there are no hazards and the sawyer takes an unusually long time to complete the task it is likely a competence issue.
Depends-If the cutting plan was developed and implemented correctly, the sawyer will understand where high risk areas are located and what they are. It is imperative for sawyers to understand the target zone of the natural lean of the tree.
Incorrect-Sounding or boring a tree is a way to understand the competence of fiber but many sawyers don’t clearly understand how to do it correctly or understand the results. Thinking sawyers sound trees to find answers
Incorrect-Boring a tree allows the sawyer to observe the condition of the fiber the saw passes through. Sometimes boring the hinge is necessary to understand where to develop a hinge which helps build the cutting plan.